WO2009149538A1 - Hand held non-adhesive tape dispenser with friction brakes - Google Patents

Hand held non-adhesive tape dispenser with friction brakes Download PDF

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Publication number
WO2009149538A1
WO2009149538A1 PCT/CA2009/000436 CA2009000436W WO2009149538A1 WO 2009149538 A1 WO2009149538 A1 WO 2009149538A1 CA 2009000436 W CA2009000436 W CA 2009000436W WO 2009149538 A1 WO2009149538 A1 WO 2009149538A1
Authority
WO
WIPO (PCT)
Prior art keywords
casing
spool
sleeve
bore
tape
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CA2009/000436
Other languages
French (fr)
Inventor
Garth Wells
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP09761196A priority Critical patent/EP2300342A4/en
Priority to CN200980122582.8A priority patent/CN102056826B/en
Priority to US12/737,015 priority patent/US20110155839A1/en
Publication of WO2009149538A1 publication Critical patent/WO2009149538A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/002Hand-held or table apparatus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/0073Details

Definitions

  • the present invention relates to dispensing tape in general and in particular to a method and apparatus for dispensing non-adhesive tapes.
  • Pipes are often connected to each other by threaded ends. It is known that for such connections a threaded sea! tape is typically used to seal the connection.
  • a commonly used threaded seal tape is polytetrafluoroethylene tape or PTFE tape commonly known as plumbers tape or Teflon® tape.
  • PTFE tape is typically sold in a rod having a hole through the middle. In use, the PTFE tape may be wrapped around the exposed end of the threads of a pipe before it is screwed into an adjoining connector or pipe.
  • a typical method of wrapping PTFE tape is for the user to grip the roll of PTFE tape between their thumb and one of their fingers. The user may then apply frictional resistance to the unwinding of the tape by squeezing the roll of PTFE tape therebetween.
  • PTFE tape is known to have low friction for lubricating the connection between the pipes.
  • PTFE tape also typically does not use an adhesive to secure it to the pipe, but rather while the PTFE tape is being wrapped around the pipe, tension is applied to the tape to pull the tape into the threads and plastically deforms the tape to the threads.
  • a common problem with PTFE tape is the fact that it lacks an adhesive. This may result in the tape freely unraveling from the roll if it is inadvertently released by the user. This may result in excessive amounts of tape unwound from the roll which may then become dirty or tangled. Such tangled portions of the tape are often discarded and therefore wasted.
  • An additional difficulty with PTFE tape is the fact that it is applied by the user applying a tension to the tape so as to deform the tape into the threads. Because PTFE tape has no adhesive and therefore no resistance to being freely unwound from the roil, the PTFE tape itself does not provide a tension to the tape to secure it to the threads.
  • Tension is typically applied by the user maintaining a frictionai grip on the roil as the tape is unwound therefrom.
  • the user may therefore control the amount of friction applied to the tape by controlling their grip on the roll. This may be difficult to accurately or consistently control in many situations or for people with iess experience and practice.
  • a method for dispensing non-adhesive tape carried on a spool to an article wherein the spool has a spool bore therethrough comprises providing a casing having a casing bore therethrough wherein the casing resistively and rotatably supports the spool around the casing bore.
  • the method further comprises supporting the casing on a support member located within the casing bore and securing a free end of the tape to the article through a dispenser portion of the casing.
  • the method further comprises rotating the spool within the casing as to unwind the non-adhesive tape while the casing is moved around the article with the dispenser portion maintained in radial alignment with the article.
  • the support may comprise a finger of a user.
  • the dispensing portion may compressibly grip the non-adhesive tape.
  • the casing may rotate around the support while the casing is moved around the article.
  • the casing may rotate on the support.
  • the casing may rotate on a bearing secured to the support
  • an apparatus for dispensing non-adhesive tape carried on a spool to an article wherein the spool has a spool bore therethrough comprises a casing having a casing bore terethrough adapted to rotatabiy receive a support member therein.
  • the apparatus further comprises a spool support for resistively and rotatabiy supporting the spool around the casing bore and a dispenser portion located in the casing for dispensing the non-adhesive tape therethrough.
  • the support member may comprise a finger of a user.
  • the casing may include a hub being concentric with the spool.
  • the casing may include a sleeve having the casing bore therein wherein the casing is rotatable about the sleeve.
  • the sleeve and the casing may include a bearing therebetween.
  • the sleeve may have a central axis wherein the casing is rotatable about the sleeve about the central axis.
  • the spool may be rotatable about the central axis.
  • the sleeve may be adapted to grip the support member.
  • the sleeve may be adapted to slidably receive the support member.
  • One of the spool or the casing may include a biased protrusion adapted to engage one of a plurality of corresponding notches in the other of the spool or the casing.
  • the plurality of notches may be oriented radially around the casing bore such that rotation of the spool within the casing will cause the protrusion to engage successive notches.
  • the notches may be located on the hub, wherein the protrusion radially extends inwardly from the spool.
  • the spool may include a spool axis and sidewalls perpendicular thereto.
  • the notches may be located on at least one inner surface of the casing adjacent to the spool wherein the protrusion extends from a corresponding sidewall to the at least one inner surface.
  • the notches may be located on at least one side wall wherein the protrusion extends from a corresponding inner surface of the casing to the at least one sidewail.
  • the spool may include an inner cylinder.
  • the casing may include first and second sides wherein the inner cylinder is frictionally engaged by the first and second sides of the casing.
  • the apparatus may further comprise friction assisting pads between the inner cylinder and the first and second sides of the casing.
  • the spool includes side walls extending radially from the inner cylinder.
  • the casing includes first and second sides wherein the side walls are frictionally engaged by the first and second sides of the casing.
  • the apparatus further comprises friction assisting pads between the side walls and the first and second sides of the casing.
  • the dispenser portion may frictionally bear against the non-adhesive tape passing therethrough.
  • Figure 1 is a perspective view of an apparatus according to the present invention applying an adhesiveless tape to the threads of a pipe.
  • Figure 2 is an exploded perspective view of the apparatus of Figure 1.
  • Figure 3 is a cross-sectional view of the apparatus of Figure 1 taken along the line 3-3 showing an indexed resistor according to a first embodiment of the apparatus.
  • Figure 4 is a cross-sectional view of the apparatus of Figure 1 taken along the line 4-4 showing an indexed resistor according to a further embodiment of the apparatus with the spool advanced to illustrate the indexed ring.
  • Figure 5 is a cross-sectional view of the apparatus of Figure 1 taken along the line 4-4 showing a frictional resistor according to a further embodiment of the apparatus.
  • Figure 6 is a cross-sectional view of the apparatus of Figure 1 taken along the line 4-4 showing an alternate frictional resistor according to a further embodiment of the apparatus.
  • Figure 7 is a perspective view of the apparatus of Figure 1 having a tensile member for gripping the finger of a user.
  • Figure 8 is a perspective view of a biased wall member for gripping the finger of a user within the finger hole of the apparatus of Figure 1.
  • Figure 9 is a perspective view of an apparatus according an alternative embodiment of the present invention having a selectably refutable casing.
  • Figure 10 is a cross sectional detail view the dispensing portion of the apparatus of Figure 1 according to an alternative embodiment.
  • Figure 11 is a cross sectional detail view the dispensing portion of the apparatus of Figure 1 according to an alternative embodiment.
  • Figure 12a is an side elevation view of the apparatus of Figure 1 applying
  • Figure 12b is an side elevation view of the apparatus of Figure 1 applying PTFE tape to a pipe at a second position.
  • Figure 13 is an exploded perspective view of the apparatus of Figure 1 without a finger sleeve according to a further embodiment of the present invention.
  • pipes 8 commonly include a threaded end 12 for securing to fittings and other pipes.
  • the threaded end 12 may be wrapped with a thread seal tape or PTFE tape 14 to seal the resulting connection.
  • An apparatus according to a first embodiment of the invention for applying an adhesiveless tape to an article is shown generally at 10 applying PTFE tape to the threaded end 12 of the pipe 8.
  • the apparatus of the present invention is illustrated and described as applying PTFE tape to threads of a pipe, it will be appreciated that other kinds of adhesiveless tape may also be applied by the present apparatus, including, by way of non-limiting example, ribbon or other types of thread seal tape.
  • the apparatus 10 comprises a casing 20 supporting a spool (as shown in Figure 2) of PTFE tape having a finger hole 30 through the center of the dispenser for receiving the finger of a user.
  • the apparatus 10 may also include a dispensing portion 24 having a slot 26 there through for receiving PTFE tape to be applied to the treaded end 12 of the pipe 8.
  • the slot 26 may squeeze or bear upon the PTFE tape as it passes therethrough for the purposes of guiding the PTFE tape such as, for example with a friction pad 27 as illustrated in Figure 11.
  • the slot 26 may have raised side walls or edges extending from the dispensing portion so as to enclose the slot 26 so as to prevent the PTFE tape 14 from being drawn from the apparatus 10 from a side direction. A slot 26 with such side edges will fully enclose the slot 26 so as to retain the PTFE tape 14 therein.
  • a user may place their finger through the finger hole 30 and apply an end of the PTFE tape to the threaded end 12. Thereafter the user may run their finger in a substantially circular motion around the threaded end as indicated by arrow 56 such that the dispensing portion 24 is maintained as the most proximate portion of the apparatus 10 to the threaded end 12. Accordingly, it will be appreciated that the apparatus 10 is retained in a radial orientation as indicated by the arrow 58 about the threaded end 12 of the pipe 8 by the PTFE tape 14 remaining in radial alignment with the pipe 8.
  • the apparatus 10 includes the back casing 22, a front casing 40, and a finger sleeve 50. As illustrated, a spool 80 of PTFE tape is retained between the front and back casings 40 and 22.
  • the back casing 22 includes a backing plate 32 and a spool support sleeve 34 projecting therefrom. As illustrated the backing plate 32 has a circular outline although it will be appreciated that other shapes may be useful as well, such as for example, cup shaped.
  • the back casing 22 may also have an enclosing wall 18 having a distal edge 19 extending around a periphery thereof.
  • the spool support sleeve 34 has an outer surface 36 and an inner surface 38 and an end edge 39.
  • the front casing 40 comprises an annular front plate 42 adapted to retain the spool 80 of PTFE tape 14 between the front plate 42 and the backing plate 32.
  • the front casing also includes a front enclosing wali 44 extending from the peripheral edge of the front plate 42.
  • the front enclosing wall 44 includes a distal edge 43 adapted to engage the distal edge 19 of the rear enclosing wall 18.
  • the front plate 42 also has a front bore 46 therethrough defined by an inner edge 45 of the front plate 42.
  • the front bore 46 corresponds with and is adapted to engage with the end edge 39 of the spooi support sleeve 34.
  • the finger sleeve 50 comprises a cyiindrical body having inner and outer surfaces 52 and 54, respectively wherein the inner surface 52 defines the finger hole 30.
  • the spool 80 of PTFE tape 14 comprises a central cylinder 82 having an outer surface 84 around which the PTFE tape 14 is wound and an inner surface 86.
  • the spool 80 may optionally include first and second side walls 88 and 90, respectively. It will be appreciated that the PTFE tape 14 may be wound directly onto the outer surface 84 of the cylinder 82.
  • the PTFE tape 14 may be wound onto a disposable cylinder that is secured to the central cylinder 82 such that existing spools of PTFE tape 14 may be used in the current apparatus without modification or such that replacement spools of
  • PTFE tape may be inserted into the apparatus 10.
  • the apparatus 10 is assembled by locating the spool 80 of PTFE tape 14 on the outer surface 36 of the spool support sleeve 34.
  • the front casing 40 is then secured to the back casing 22 such that the end edge 39 of the spool support sleeve 34 engages the inner edge 45 of the front plate 42 and the distal edge of the back enclosing wall 18 engages the distal edge 43 of the front enclosing wall 44.
  • the front casing 40 may be secured to the back casing by providing a clip on one of the front or back casing that engages a corresponding catch or by any other known method of securing two halves of a casing together.
  • the finger sleeve 50 is then located within the casing 20 such that outer surface 54 is supported within the bore defined by inner surface 38 of the spooi support sleeve 34.
  • the finger sleeve 50 may be secured within the casing 20 with a locking ring 53.
  • the finger sleeve 50 may include clips 55 at a free distal end 57 thereof for engaging the locking ring.
  • the finger sleeve 50 and locking ring 53 may span both the front and back casings 40 and 22 so as to retain both of these components therebetween. This embodiment is also illustrated in cross section in Figure 4.
  • the casing 20 will not be openable without first removing the locking ring 53 from the finger sleeve 50.
  • the locking ring 53 and finger sleeve may retain only the spool support sleeve 34 of the back casing 22 therebetween as illustrated in cross section in Figure 5.
  • the casing 20 may be opened without the need to disengage the locking ring 53 from the finger sleeve 50 such that the apparatus 10 may be more readily refilled with new spools 80 of PTFE tape 14.
  • Other connections between the finger sleeve 50 and the locking ring 53 may also be utilized, such as, for example, threading or adhesives.
  • the finger sleeve 50, the spool support sleeve 34 and spool 80 of PTFE tape 14 are coaxial about axis 28 in the present embodiment.
  • the spool 80 of PTFE tape 14 is rotatable relative to the backing plate 32 and spool support sleeve 34 such that the PTFE tape 14 may be unspooled therefrom as indicated by arrow 59.
  • the tape spool 80 or reel is permitted to operate or rotate relative to the casing 20 of the dispensing apparatus 10. This may be accomplished by permitting the central cylinder 82 of the spool 80 of PTFE tape 14 to resistively rotate relative to the spool support sleeve 34. It will be appreciated that therefore the spool 80 of PTFE tape 14 is rotating relative to the back casing 22 and therefore the casing 20 as a whole. In operation, the spool 80 will be caused to be rotated relative to the casing 20 by the unwinding of the PTFE tape 14 therefrom as the apparatus is rotated around a pipe 8 and the PTFE tape applied to the pipe.
  • FIGs 12a and 12b an apparatus 10 according to the present invention is illustrated in a plurality of positions while dispensing PTFE tape 14 to the threaded end 12 of a pipe 8.
  • the apparatus is oriented below the pipe 8 such that the dispensing portion is oriented at the uppermost portion of the apparatus 10 approximate to the pipe 8.
  • the protrusion 66 and dispensing portion are radially aligned within the apparatus.
  • the apparatus 10 has now been rotated around the pipe 8 wherein the dispensing portion is now oriented to the side of the apparatus 10 but still in the most proximate position to the pipe of the apparatus end.
  • the amount of resistance between the spool 80 of PTFE tape 14 and the back casing 22 is provided by a resistive device as further described below and should be selected to prevent the PTFE tape 14 from freely unrolling. In practice the amount of resistance between the spool 80 of PTFE tape and the back casing 22 should be selected such that the PTFE tape 14 wiil not freely unravel from the apparatus 10 should the apparatus be dropped by the user.
  • the amount of resistance between the PTFE tape and the backing body constitutes a braking mechanism and should be sufficient to support the weight of the apparatus 10 and the spool 80 of PTFE tape 14 when the apparatus is suspended by the free end 15 of the PTFE tape 14.
  • the amount of resistance between the spool 80 of PTFE tape 14 and the backing body should be selected to ensure that a desired amount of tension is applied to the PTFE tape 14 when in use by a user such that the PTFE tape 14 is embedded within the threads of the pipe 8.
  • the amount of resistance should also be selected to be high enough to support the weight of the apparatus 10 with a full spool 80 of PTFE tape 14 includes so as to prevent the unwinding of the PTFE tape 14 from the apparatus should the user let go of the apparatus when a free end of the PTFE tape is secured to the article.
  • the amount of tension applied to the PTFE tape 14 should be less than the tensile strength of the PTFE tape 14 so as to prevent unwanted breaking of the PTFE tape during application to an article. It will be appreciated that the actual amount of resistance provided by the apparatus should therefore be selected based upon the type, width and thickness of the adhesiveless tape with which the apparatus is intended to be used.
  • the spool support sleeve 34 is also rotatable relative to a finger of a user located in the finger hoie 30. This may be accomplished by permitting the finger sleeve 50 to rotate relative to the spool support sleeve 34.
  • the finger sleeve 50 may be sized to snuggly surround the finger of a user.
  • the close snug fit of the finger sleeve 50 on the finger of the user will also assist in preventing the user from inadvertently dropping the apparatus 10.
  • Roller bearings, journal bearings or bushings may be utilized to permit rotation of the spool support sleeve 34 on the finger sleeve 50.
  • a pad 31 or other similar cushioning device may be provided within the finger hole 30 so enable the finger hole 30 to snugly
  • a biased member 33 spanning the finger hole as illustrated in Figure 7 may be used to grip the finger of a user.
  • a gripping member having semi-circular 35 and a biased wall 37 as illustrated in Figure 8 may be located within the finger hole wherein the biased wall 37 is adapted to grip the finger of a user.
  • the finger hole 30 and any gripping device located therein may be sized to fit a variety of fingers.
  • other support objects, such as, for example, rods and the like may also be located within and gripped in the finger hole as described above. Gripping the finger of a user within the finger hole 30 will secure the apparatus 10 to the finger of the user when not in use.
  • the apparatus 10 may be assembled without the finger sleeve 50 such that the finger bore may be defined by the spool support sleeve 34.
  • the finger of the user may be received within the finger hole 30 formed by the spool support sleeve 34 and may to freely rotate within the finger hole 30.
  • the resistive device may include a biased protrusion 66 radially extending from the inner surface 86 of the central cylinder 82 of the spool 80.
  • the protrusion 66 may be biased by a pair of biasing arms 67 extending circumferentiaily around the central cylinder 82 to bias the protrusion 66 radially inward.
  • An indexing ring 60 is disposed on the outer surface 36 of the spool support sleeve 34.
  • the indexing ring 60 comprises a plurality of alternating indentations and ridges 62 and 64, respectively.
  • the protrusion 66 cooperates with the ridges 62 so as to index the motion of the spool 80 relative to the spool support sleeve 34 as the spool is rotated relative to the spool support sleeve 34 in the direction generally indicated at 68.
  • the outer sleeve may include the plurality of alternating ridges and indentations while the spool support sieeve 34 includes the protrusion 66 extending radially therefrom.
  • two protrusions are shown in Figure 3, a single or a plurality of protrusions may be arranged around the central cylinder 82.
  • the central cylinder 82 of the spool 80 may have a friction fit on the spool support sleeve 34 so as to provide the desired resistance.
  • the indexing ring 60 may be disposed annularly around the side wall 88 of the spool 80.
  • the protrusion 66 is on a distal end of a biasing arm 67 extending from the backing plate 32 of the back casing 22.
  • the indexing ring 60 may be applied to the side wall 90 of the spool 80 wherein the protrusion 66 extends from the front plate 42 of the front casing 40.
  • the indexing ring 60 may be applied to the spool 80 while the protrusion 66 extends from the portion of the casing corresponding to the location of the indexing ring.
  • the friction resistive device comprises friction pads 70 applied to the front and back plates 42 and 32 of the casing at location adjacent to the sides of the spool 80.
  • the friction pads may be disposed adjacent to side edges 81 and 83 of the central cylinder 82.
  • the friction pads may be disposed adjacent to the side walls 88 and 90. It will also be appreciated that the friction pads may be secured to the side walls or the side edges of the spooi 80.
  • the friction pads 70 will have a thickness sufficient to frictionally engage the spool therebetween when the front and back casings 40 and 22 are engaged with each other.
  • the friction pads will also have a sufficient thickness and coefficient of friction to provide an sufficient amount of friction to the spool 80 to resist the free unwinding of the PTFE tape 14 therefrom while permitting the spool 80 to turn under the operation of the user to apply the PTFE tape to a article as discussed above.
  • the casing 20 may be selectively openable so as to facilitate replacement of the spool 80 of PTFE tape 14 therein.
  • the front casing 40 may include a turn latch 92 extending therefrom for engagement with a corresponding cam 94 extending from the back casing 22.
  • the turn latch 92 may be disengaged from the cam 94 to permit the front and back casings 40 and 22 to be removed from each other, it will also be appreciated that other types of couplings between the front and back casings 40 and 22 may also be used, such as, for example, tabs and threaded couplings.
  • the finger sleeve 50 will be supported entirely by the back casing 22 as illustrated in Figure 5.
  • the finger sleeve 50 may include an end flange 51 adapted to surround the end edge 39 of the spooi support sleeve 34.
  • the front casing 40 may also include an outer support sleeve 48 extending from the inner edge 45 of the front plate 42 to the backing plate 32 so as to provide additional support to the front plate 42.
  • the indexing ring 60 or protrusions may also be located on such outer support sleeve if the outer support sleeve 48 surrounds the spool support sleeve 34.
  • the casing 20 will be unopenable so as to be a disposable unit in which the spool 80 of PTFE tape is not to be refilled.
  • finger sleeve may be supported by both the front and back casings 40 and 22. It will be appreciated that in such embodiments, the end flange 51 of the finger sleeve may bear against the front plate 42 as illustrated in Figure 4.
  • the dispensing portion 24 may include a plurality of rollers 110 through which the PTFE tape 14 is passes. It will be appreciated that although three rollers are illustrated, one, two or more than three may also be utilized. It will be appreciated that the rollers will provide additional resistance to the free unravelling of the PTFE tape 14 from the apparatus 10.
  • the dispensing portion 24 may comprise first and second sides 120 and 122 wherein the first side extends further along the path of travel of the PTFE tape
  • the extended length of the first side 120 will facilitate a user being able to grab the end of the PTFE tape 14 when the tape is torn off close to the dispensing portion 24.
  • the PTFE tape roll may be manufactured as a combined article for disposal after use.
  • the exterior components of the apparatus may be permanently affixed to each other.
  • the roll of PTFE tape for such embodiments may also include one or more part of the indexing or breaking mechanism as described above for use specifically with such a unitary article. It will also be appreciated that specific rolls of PTFE tape including such indexing or breaking mechanism may also be provided for use as a replaceable roll for a corresponding apparatus.
  • PTFE PTFE
  • the apparatus and method will be useful in association with other types of adhesiveless tapes as well such as anti-seize tape including, by way of non-limiting example, other PTFE tapes including, PTFE tapes having nickel, copper or ceramics included therein as well as ribbons.

Landscapes

  • Adhesive Tape Dispensing Devices (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)

Abstract

Disclosed is an apparatus and method for dispensing non-adhesive tape carried on a spool to an article wherein the spool has a spool bore therethrough. The apparatus comprises a casing having a casing bore therethrough adapted to rotatably receive a support member therein. The apparatus further comprises a spool support for resistively and rotatably supporting the spool around the casing bore and a dispenser portion located in the casing for dispensing the non-adhesive tape therethrough. The method comprises supporting the casing on a support member located within the casing bore and securing a free end of the tape to the article through a dispenser portion of the casing. The method further comprises rotating the spool within the casing as to unwind the non-adhesive tape while the casing is moved around the article with the dispenser portion maintained in radial alignment with the article.

Description

HAND HELD NON-ADHESIVE TAPE DISPENSER WITH FRICTION BRAKES
BACKGROUND OF THE INVENTION
1. Field of Invention The present invention relates to dispensing tape in general and in particular to a method and apparatus for dispensing non-adhesive tapes.
2. Description of Related Art
Pipes are often connected to each other by threaded ends. It is known that for such connections a threaded sea! tape is typically used to seal the connection. A commonly used threaded seal tape is polytetrafluoroethylene tape or PTFE tape commonly known as plumbers tape or Teflon® tape. PTFE tape is typically sold in a rod having a hole through the middle. In use, the PTFE tape may be wrapped around the exposed end of the threads of a pipe before it is screwed into an adjoining connector or pipe. A typical method of wrapping PTFE tape is for the user to grip the roll of PTFE tape between their thumb and one of their fingers. The user may then apply frictional resistance to the unwinding of the tape by squeezing the roll of PTFE tape therebetween.
PTFE tape is known to have low friction for lubricating the connection between the pipes. PTFE tape also typically does not use an adhesive to secure it to the pipe, but rather while the PTFE tape is being wrapped around the pipe, tension is applied to the tape to pull the tape into the threads and plastically deforms the tape to the threads.
A common problem with PTFE tape is the fact that it lacks an adhesive. This may result in the tape freely unraveling from the roll if it is inadvertently released by the user. This may result in excessive amounts of tape unwound from the roll which may then become dirty or tangled. Such tangled portions of the tape are often discarded and therefore wasted. An additional difficulty with PTFE tape is the fact that it is applied by the user applying a tension to the tape so as to deform the tape into the threads. Because PTFE tape has no adhesive and therefore no resistance to being freely unwound from the roil, the PTFE tape itself does not provide a tension to the tape to secure it to the threads. It is therefore required that the user apply an appropriate levei of tension to the tape for application to the threads. Tension is typically applied by the user maintaining a frictionai grip on the roil as the tape is unwound therefrom. The user may therefore control the amount of friction applied to the tape by controlling their grip on the roll. This may be difficult to accurately or consistently control in many situations or for people with iess experience and practice.
SUMMARY OF THE INVENTION
According to a first embodiment of the present invention there is provided a method for dispensing non-adhesive tape carried on a spool to an article wherein the spool has a spool bore therethrough. The method comprises providing a casing having a casing bore therethrough wherein the casing resistively and rotatably supports the spool around the casing bore. The method further comprises supporting the casing on a support member located within the casing bore and securing a free end of the tape to the article through a dispenser portion of the casing. The method further comprises rotating the spool within the casing as to unwind the non-adhesive tape while the casing is moved around the article with the dispenser portion maintained in radial alignment with the article.
The support may comprise a finger of a user. The dispensing portion may compressibly grip the non-adhesive tape. The casing may rotate around the support while the casing is moved around the article. The casing may rotate on the support. The casing may rotate on a bearing secured to the support
According to a further embodiment of the present invention there is provided an apparatus for dispensing non-adhesive tape carried on a spool to an article wherein the spool has a spool bore therethrough. The apparatus comprises a casing having a casing bore terethrough adapted to rotatabiy receive a support member therein. The apparatus further comprises a spool support for resistively and rotatabiy supporting the spool around the casing bore and a dispenser portion located in the casing for dispensing the non-adhesive tape therethrough.
The support member may comprise a finger of a user. The casing may include a hub being concentric with the spool.
The casing may include a sleeve having the casing bore therein wherein the casing is rotatable about the sleeve. The sleeve and the casing may include a bearing therebetween. The sleeve may have a central axis wherein the casing is rotatable about the sleeve about the central axis. The spool may be rotatable about the central axis. The sleeve may be adapted to grip the support member. The sleeve may be adapted to slidably receive the support member.
One of the spool or the casing may include a biased protrusion adapted to engage one of a plurality of corresponding notches in the other of the spool or the casing. The plurality of notches may be oriented radially around the casing bore such that rotation of the spool within the casing will cause the protrusion to engage successive notches. The notches may be located on the hub, wherein the protrusion radially extends inwardly from the spool. The spool may include a spool axis and sidewalls perpendicular thereto. The notches may be located on at least one inner surface of the casing adjacent to the spool wherein the protrusion extends from a corresponding sidewall to the at least one inner surface.
The notches may be located on at least one side wall wherein the protrusion extends from a corresponding inner surface of the casing to the at least one sidewail. -A-
The spool may include an inner cylinder. The casing may include first and second sides wherein the inner cylinder is frictionally engaged by the first and second sides of the casing. The apparatus may further comprise friction assisting pads between the inner cylinder and the first and second sides of the casing.
The spool includes side walls extending radially from the inner cylinder. The casing includes first and second sides wherein the side walls are frictionally engaged by the first and second sides of the casing. The apparatus further comprises friction assisting pads between the side walls and the first and second sides of the casing. The dispenser portion may frictionally bear against the non-adhesive tape passing therethrough.
BRIEF DESCRIPTION OF THE DRAWINGS In drawings which illustrate embodiments of the invention wherein similar characters of reference denote corresponding parts in each view, Figure 1 is a perspective view of an apparatus according to the present invention applying an adhesiveless tape to the threads of a pipe. Figure 2 is an exploded perspective view of the apparatus of Figure 1. Figure 3 is a cross-sectional view of the apparatus of Figure 1 taken along the line 3-3 showing an indexed resistor according to a first embodiment of the apparatus.
Figure 4 is a cross-sectional view of the apparatus of Figure 1 taken along the line 4-4 showing an indexed resistor according to a further embodiment of the apparatus with the spool advanced to illustrate the indexed ring.
Figure 5 is a cross-sectional view of the apparatus of Figure 1 taken along the line 4-4 showing a frictional resistor according to a further embodiment of the apparatus. Figure 6 is a cross-sectional view of the apparatus of Figure 1 taken along the line 4-4 showing an alternate frictional resistor according to a further embodiment of the apparatus. Figure 7 is a perspective view of the apparatus of Figure 1 having a tensile member for gripping the finger of a user. Figure 8 is a perspective view of a biased wall member for gripping the finger of a user within the finger hole of the apparatus of Figure 1. Figure 9 is a perspective view of an apparatus according an alternative embodiment of the present invention having a selectably refutable casing. Figure 10 is a cross sectional detail view the dispensing portion of the apparatus of Figure 1 according to an alternative embodiment. Figure 11 is a cross sectional detail view the dispensing portion of the apparatus of Figure 1 according to an alternative embodiment. Figure 12a is an side elevation view of the apparatus of Figure 1 applying
PTFE tape to a pipe at a first position.
Figure 12b is an side elevation view of the apparatus of Figure 1 applying PTFE tape to a pipe at a second position.
Figure 13 is an exploded perspective view of the apparatus of Figure 1 without a finger sleeve according to a further embodiment of the present invention.
DETAILED DESCRIPTION
Referring to Figure 1 , pipes 8 commonly include a threaded end 12 for securing to fittings and other pipes. The threaded end 12 may be wrapped with a thread seal tape or PTFE tape 14 to seal the resulting connection. An apparatus according to a first embodiment of the invention for applying an adhesiveless tape to an article is shown generally at 10 applying PTFE tape to the threaded end 12 of the pipe 8. Although the apparatus of the present invention is illustrated and described as applying PTFE tape to threads of a pipe, it will be appreciated that other kinds of adhesiveless tape may also be applied by the present apparatus, including, by way of non-limiting example, ribbon or other types of thread seal tape.
The apparatus 10 comprises a casing 20 supporting a spool (as shown in Figure 2) of PTFE tape having a finger hole 30 through the center of the dispenser for receiving the finger of a user. The apparatus 10 may also include a dispensing portion 24 having a slot 26 there through for receiving PTFE tape to be applied to the treaded end 12 of the pipe 8. In some embodiments, the slot 26 may squeeze or bear upon the PTFE tape as it passes therethrough for the purposes of guiding the PTFE tape such as, for example with a friction pad 27 as illustrated in Figure 11. It will be appreciated that in some embodiments, the slot 26 may have raised side walls or edges extending from the dispensing portion so as to enclose the slot 26 so as to prevent the PTFE tape 14 from being drawn from the apparatus 10 from a side direction. A slot 26 with such side edges will fully enclose the slot 26 so as to retain the PTFE tape 14 therein.
In operation, a user may place their finger through the finger hole 30 and apply an end of the PTFE tape to the threaded end 12. Thereafter the user may run their finger in a substantially circular motion around the threaded end as indicated by arrow 56 such that the dispensing portion 24 is maintained as the most proximate portion of the apparatus 10 to the threaded end 12. Accordingly, it will be appreciated that the apparatus 10 is retained in a radial orientation as indicated by the arrow 58 about the threaded end 12 of the pipe 8 by the PTFE tape 14 remaining in radial alignment with the pipe 8.
Turning to Figure 2, an exploded view of one embodiment of the apparatus 10 is illustrated. The apparatus 10 includes the back casing 22, a front casing 40, and a finger sleeve 50. As illustrated, a spool 80 of PTFE tape is retained between the front and back casings 40 and 22. The back casing 22 includes a backing plate 32 and a spool support sleeve 34 projecting therefrom. As illustrated the backing plate 32 has a circular outline although it will be appreciated that other shapes may be useful as well, such as for example, cup shaped. The back casing 22 may also have an enclosing wall 18 having a distal edge 19 extending around a periphery thereof. The spool support sleeve 34 has an outer surface 36 and an inner surface 38 and an end edge 39. The front casing 40 comprises an annular front plate 42 adapted to retain the spool 80 of PTFE tape 14 between the front plate 42 and the backing plate 32. The front casing also includes a front enclosing wali 44 extending from the peripheral edge of the front plate 42. The front enclosing wall 44 includes a distal edge 43 adapted to engage the distal edge 19 of the rear enclosing wall 18. The front plate 42 also has a front bore 46 therethrough defined by an inner edge 45 of the front plate 42. The front bore 46 corresponds with and is adapted to engage with the end edge 39 of the spooi support sleeve 34. The finger sleeve 50 comprises a cyiindrical body having inner and outer surfaces 52 and 54, respectively wherein the inner surface 52 defines the finger hole 30.
The spool 80 of PTFE tape 14 comprises a central cylinder 82 having an outer surface 84 around which the PTFE tape 14 is wound and an inner surface 86. The spool 80 may optionally include first and second side walls 88 and 90, respectively. It will be appreciated that the PTFE tape 14 may be wound directly onto the outer surface 84 of the cylinder 82. Optionally, the PTFE tape 14 may be wound onto a disposable cylinder that is secured to the central cylinder 82 such that existing spools of PTFE tape 14 may be used in the current apparatus without modification or such that replacement spools of
PTFE tape may be inserted into the apparatus 10.
The apparatus 10 is assembled by locating the spool 80 of PTFE tape 14 on the outer surface 36 of the spool support sleeve 34. The front casing 40 is then secured to the back casing 22 such that the end edge 39 of the spool support sleeve 34 engages the inner edge 45 of the front plate 42 and the distal edge of the back enclosing wall 18 engages the distal edge 43 of the front enclosing wall 44. The front casing 40 may be secured to the back casing by providing a clip on one of the front or back casing that engages a corresponding catch or by any other known method of securing two halves of a casing together. The finger sleeve 50 is then located within the casing 20 such that outer surface 54 is supported within the bore defined by inner surface 38 of the spooi support sleeve 34. The finger sleeve 50 may be secured within the casing 20 with a locking ring 53. As illustrated, the finger sleeve 50 may include clips 55 at a free distal end 57 thereof for engaging the locking ring. As illustrated in Figure 2, the finger sleeve 50 and locking ring 53 may span both the front and back casings 40 and 22 so as to retain both of these components therebetween. This embodiment is also illustrated in cross section in Figure 4. It wiii be appreciated that in such embodiments, the casing 20 will not be openable without first removing the locking ring 53 from the finger sleeve 50. In alternative embodiments, the locking ring 53 and finger sleeve may retain only the spool support sleeve 34 of the back casing 22 therebetween as illustrated in cross section in Figure 5. In these embodiments, it will be appreciated that the casing 20 may be opened without the need to disengage the locking ring 53 from the finger sleeve 50 such that the apparatus 10 may be more readily refilled with new spools 80 of PTFE tape 14. Other connections between the finger sleeve 50 and the locking ring 53 may also be utilized, such as, for example, threading or adhesives. As illustrated, the finger sleeve 50, the spool support sleeve 34 and spool 80 of PTFE tape 14 are coaxial about axis 28 in the present embodiment.
Referring to Figure 3, the spool 80 of PTFE tape 14 is rotatable relative to the backing plate 32 and spool support sleeve 34 such that the PTFE tape 14 may be unspooled therefrom as indicated by arrow 59. In other words, the tape spool 80 or reel is permitted to operate or rotate relative to the casing 20 of the dispensing apparatus 10. This may be accomplished by permitting the central cylinder 82 of the spool 80 of PTFE tape 14 to resistively rotate relative to the spool support sleeve 34. It will be appreciated that therefore the spool 80 of PTFE tape 14 is rotating relative to the back casing 22 and therefore the casing 20 as a whole. In operation, the spool 80 will be caused to be rotated relative to the casing 20 by the unwinding of the PTFE tape 14 therefrom as the apparatus is rotated around a pipe 8 and the PTFE tape applied to the pipe.
Turning now to Figures 12a and 12b, an apparatus 10 according to the present invention is illustrated in a plurality of positions while dispensing PTFE tape 14 to the threaded end 12 of a pipe 8. As illustrated in Figure 12a, the apparatus is oriented below the pipe 8 such that the dispensing portion is oriented at the uppermost portion of the apparatus 10 approximate to the pipe 8. As illustrated in Figure 12a, the protrusion 66 and dispensing portion are radially aligned within the apparatus. As illustrated in Figure 12b, the apparatus 10 has now been rotated around the pipe 8 wherein the dispensing portion is now oriented to the side of the apparatus 10 but still in the most proximate position to the pipe of the apparatus end. It will also be observed that between the positions illustrated in Figures 12a and 12b, the spool 80 of PTFE tape 14 has rotated relative to the casing of the apparatus in the course of unwinding the PTFE tape 14 from the spool 80. The amount of rotation between the spool 80 and the casing 20 is illustrated by angle 100 between the protrusion 66 and the dispensing portion 24.
The amount of resistance between the spool 80 of PTFE tape 14 and the back casing 22 is provided by a resistive device as further described below and should be selected to prevent the PTFE tape 14 from freely unrolling. In practice the amount of resistance between the spool 80 of PTFE tape and the back casing 22 should be selected such that the PTFE tape 14 wiil not freely unravel from the apparatus 10 should the apparatus be dropped by the user.
Put another way, the amount of resistance between the PTFE tape and the backing body constitutes a braking mechanism and should be sufficient to support the weight of the apparatus 10 and the spool 80 of PTFE tape 14 when the apparatus is suspended by the free end 15 of the PTFE tape 14.
In some embodiments, the amount of resistance between the spool 80 of PTFE tape 14 and the backing body should be selected to ensure that a desired amount of tension is applied to the PTFE tape 14 when in use by a user such that the PTFE tape 14 is embedded within the threads of the pipe 8. The amount of resistance should also be selected to be high enough to support the weight of the apparatus 10 with a full spool 80 of PTFE tape 14 includes so as to prevent the unwinding of the PTFE tape 14 from the apparatus should the user let go of the apparatus when a free end of the PTFE tape is secured to the article. In addition, the amount of tension applied to the PTFE tape 14 should be less than the tensile strength of the PTFE tape 14 so as to prevent unwanted breaking of the PTFE tape during application to an article. It will be appreciated that the actual amount of resistance provided by the apparatus should therefore be selected based upon the type, width and thickness of the adhesiveless tape with which the apparatus is intended to be used.
The spool support sleeve 34 is also rotatable relative to a finger of a user located in the finger hoie 30. This may be accomplished by permitting the finger sleeve 50 to rotate relative to the spool support sleeve 34. In such embodiments the finger sleeve 50 may be sized to snuggly surround the finger of a user. In such an embodiment, the close snug fit of the finger sleeve 50 on the finger of the user will also assist in preventing the user from inadvertently dropping the apparatus 10. Roller bearings, journal bearings or bushings may be utilized to permit rotation of the spool support sleeve 34 on the finger sleeve 50. A pad 31 or other similar cushioning device may be provided within the finger hole 30 so enable the finger hole 30 to snugly
■ accommodate a variety of finger sizes. Optionally, a biased member 33 spanning the finger hole as illustrated in Figure 7 may be used to grip the finger of a user. A gripping member having semi-circular 35 and a biased wall 37 as illustrated in Figure 8 may be located within the finger hole wherein the biased wall 37 is adapted to grip the finger of a user. It will be appreciated that the finger hole 30 and any gripping device located therein may be sized to fit a variety of fingers. It will also be appreciated that other support objects, such as, for example, rods and the like may also be located within and gripped in the finger hole as described above. Gripping the finger of a user within the finger hole 30 will secure the apparatus 10 to the finger of the user when not in use. It will therefore be appreciated that gripping the finger with the pad 31 or other similar device wiil prevent the apparatus 10 from being inadvertently dropped. As illustrated in Figures 13, the apparatus 10 may be assembled without the finger sleeve 50 such that the finger bore may be defined by the spool support sleeve 34. In such an embodiment, the finger of the user may be received within the finger hole 30 formed by the spool support sleeve 34 and may to freely rotate within the finger hole 30.
As illustrated in Figure 3, the resistive device may include a biased protrusion 66 radially extending from the inner surface 86 of the central cylinder 82 of the spool 80. The protrusion 66 may be biased by a pair of biasing arms 67 extending circumferentiaily around the central cylinder 82 to bias the protrusion 66 radially inward. An indexing ring 60 is disposed on the outer surface 36 of the spool support sleeve 34. The indexing ring 60 comprises a plurality of alternating indentations and ridges 62 and 64, respectively. The protrusion 66 cooperates with the ridges 62 so as to index the motion of the spool 80 relative to the spool support sleeve 34 as the spool is rotated relative to the spool support sleeve 34 in the direction generally indicated at 68. It will also be appreciated that the outer sleeve may include the plurality of alternating ridges and indentations while the spool support sieeve 34 includes the protrusion 66 extending radially therefrom. It will also be appreciated that although two protrusions are shown in Figure 3, a single or a plurality of protrusions may be arranged around the central cylinder 82. It will also be appreciated that the central cylinder 82 of the spool 80 may have a friction fit on the spool support sleeve 34 so as to provide the desired resistance.
In an alternative embodiment as illustrated in Figure 4, the indexing ring 60 may be disposed annularly around the side wall 88 of the spool 80. In this embodiment, the protrusion 66 is on a distal end of a biasing arm 67 extending from the backing plate 32 of the back casing 22. It will also be appreciated that the indexing ring 60 may be applied to the side wall 90 of the spool 80 wherein the protrusion 66 extends from the front plate 42 of the front casing 40. In addition it will be appreciated that the indexing ring 60 may be applied to the spool 80 while the protrusion 66 extends from the portion of the casing corresponding to the location of the indexing ring. Turning now to Figures 5 and 6, an alternative resistive device is illustrated utilizing friction. The friction resistive device comprises friction pads 70 applied to the front and back plates 42 and 32 of the casing at location adjacent to the sides of the spool 80. In embodiments where the spool does not have sides, the friction pads may be disposed adjacent to side edges 81 and 83 of the central cylinder 82. As illustrated in Figure 6, in embodiments where the spool includes side walls 88 and 90, the friction pads may be disposed adjacent to the side walls 88 and 90. It will also be appreciated that the friction pads may be secured to the side walls or the side edges of the spooi 80. The friction pads 70 will have a thickness sufficient to frictionally engage the spool therebetween when the front and back casings 40 and 22 are engaged with each other. The friction pads will also have a sufficient thickness and coefficient of friction to provide an sufficient amount of friction to the spool 80 to resist the free unwinding of the PTFE tape 14 therefrom while permitting the spool 80 to turn under the operation of the user to apply the PTFE tape to a article as discussed above.
With reference to Figure 9, the casing 20 may be selectively openable so as to facilitate replacement of the spool 80 of PTFE tape 14 therein. The front casing 40 may include a turn latch 92 extending therefrom for engagement with a corresponding cam 94 extending from the back casing 22. The turn latch 92 may be disengaged from the cam 94 to permit the front and back casings 40 and 22 to be removed from each other, it will also be appreciated that other types of couplings between the front and back casings 40 and 22 may also be used, such as, for example, tabs and threaded couplings. In such embodiments, it will be appreciated that that the finger sleeve 50 will be supported entirely by the back casing 22 as illustrated in Figure 5. In such embodiments, the finger sleeve 50 may include an end flange 51 adapted to surround the end edge 39 of the spooi support sleeve 34. It will also be appreciated that the front casing 40 may also include an outer support sleeve 48 extending from the inner edge 45 of the front plate 42 to the backing plate 32 so as to provide additional support to the front plate 42. In such embodiments the indexing ring 60 or protrusions may also be located on such outer support sleeve if the outer support sleeve 48 surrounds the spool support sleeve 34.
In other embodiments, the casing 20 will be unopenable so as to be a disposable unit in which the spool 80 of PTFE tape is not to be refilled. In such embodiments, finger sleeve may be supported by both the front and back casings 40 and 22. It will be appreciated that in such embodiments, the end flange 51 of the finger sleeve may bear against the front plate 42 as illustrated in Figure 4.
Turning now to Figures 10 and 11 , alternative embodiments of the dispensing portion 24 are illustrated. As illustrated in Figure 10, the dispensing portion may include a plurality of rollers 110 through which the PTFE tape 14 is passes. It will be appreciated that although three rollers are illustrated, one, two or more than three may also be utilized. It will be appreciated that the rollers will provide additional resistance to the free unravelling of the PTFE tape 14 from the apparatus 10. Optionally as illustrated in Figure 11, the dispensing portion 24 may comprise first and second sides 120 and 122 wherein the first side extends further along the path of travel of the PTFE tape
14 than the second side 122. It will be appreciated that in such an embodiment, the extended length of the first side 120 will facilitate a user being able to grab the end of the PTFE tape 14 when the tape is torn off close to the dispensing portion 24.
It will be appreciated that some embodiments of the present invention will be adapted to be able to receive existing PTFE tape rolls. It will also be appreciated that in other embodiments of the present invention, the PTFE tape roll may be manufactured as a combined article for disposal after use. In such embodiments the exterior components of the apparatus may be permanently affixed to each other. In addition, the roll of PTFE tape for such embodiments may also include one or more part of the indexing or breaking mechanism as described above for use specifically with such a unitary article. It will also be appreciated that specific rolls of PTFE tape including such indexing or breaking mechanism may also be provided for use as a replaceable roll for a corresponding apparatus.
Although the present disclosure describes polytetrafluoroethylene tape, or
PTFE, it will be appreciated that the apparatus and method will be useful in association with other types of adhesiveless tapes as well such as anti-seize tape including, by way of non-limiting example, other PTFE tapes including, PTFE tapes having nickel, copper or ceramics included therein as well as ribbons.
While specific embodiments of the invention have been described and illustrated, such embodiments should be considered illustrative of the invention only and not as limiting the invention as construed in accordance with the accompanying claims.

Claims

What is claimed is:
1. A method for dispensing non-adhesive tape carried on a spool to an article, the spool having a spool bore therethrough, the method comprising:
providing a casing having a casing bore therethrough, said casing resistively and rotatably supporting the spool around said casing bore;
supporting said casing on a support member located within said casing bore;
securing a free end of the tape to the article through a dispenser portion of said casing, and
rotating said spooi within said casing as to unwind the non-adhesive tape while said casing is moved around the article with said dispenser portion maintained in radial alignment with the article.
2. The method of claim 1 wherein said support comprises a finger of a user.
3. The method of claim 1 wherein said dispensing portion compressibly grips the non-adhesive tape.
4. The method of claim 1 wherein said casing rotates around said support while said casing is moved around said article.
5. The method of claim 4 wherein said casing rotates on said support.
6. The method of claim 4 wherein said casing rotates on a bearing secured to said support
7. An apparatus for dispensing non-adhesive tape carried on a spool to an article, the spool having a spool bore therethrough, the apparatus comprising:
a casing having a casing bore therethrough, said casing bore being adapted to rotatably receive a support member therein;
a spool support for resistively and rotatably supporting the spooi around said casing bore; and
a dispenser portion located in said casing for dispensing said non- adhesive tape therethrough.
8. The apparatus of claim 7 wherein said support member comprises a finger of a user.
9. The apparatus of claim 7 wherein said casing includes a sleeve, said sleeve having said casing bore therein wherein said casing is rotatable about said sleeve.
10. The apparatus of claim 9 wherein said sleeve and said casing include a bearing therebetween.
11. The apparatus of claim 9 wherein said sleeve has a central axis wherein said casing is rotatable about said central axis.
12. The apparatus of claim 11 wherein said spool is rotatable about said central axis.
13. The apparatus of claim 9 wherein said sleeve is adapted to grip said support member.
14. The apparatus of claim 9 wherein said sleeve is adapted to slidably receive said support member.
15. The apparatus of claim 7 wherein said casing includes a hub, said hub being concentric with said spool.
16. The apparatus of claim 15 wherein said one of said spool or said casing includes a biased protrusion adapted to engage one of a plurality of corresponding notches in the other of said spool or said casing, said plurality of notches being oriented radially around said casing bore such that rotation of said spool within said casing wil! cause said protrusion to engage successive notches.
17. The apparatus of claim 16 wherein said notches are located on said hub, wherein said protrusion radially extends inwardly from said spool.
18. The apparatus of claim 16 wherein said spool includes a spool axis and sidewalls perpendicular thereto.
19. The apparatus of claim 18 wherein said notches are located on at least one inner surface of said casing adjacent to said spool wherein said protrusion extends from a corresponding sidewall to said at least one inner surface.
20. The apparatus of claim 18 wherein said notches are located on at least one side wall wherein said protrusion extends from a corresponding inner surface of said casing to said at least one sidewall.
21. The apparatus of claim 7 wherein said spool includes an inner cylinder.
22. The apparatus of claim 21 wherein said casing includes first and second sides wherein said inner cylinder is frictionaily engaged by said first and second sides of said casing.
23. The apparatus of claim 22 further comprising friction assisting pads between said inner cylinder and said first and second sides of said casing.
24. The apparatus of claim 21 wherein said spool includes side walls extending radially from said inner cylinder.
25. The apparatus of claim 25 wherein said casing includes first and second sides wherein said side wails are frictionally engaged by said first and second sides of said casing.
26. The apparatus of claim 25 further comprising friction assisting pads between said side walls and said first and second sides of said casing.
27. The apparatus of claim 7 wherein said dispenser portion frictionally bears against said non-adhesive tape passing therethrough.
PCT/CA2009/000436 2008-06-10 2009-04-15 Hand held non-adhesive tape dispenser with friction brakes Ceased WO2009149538A1 (en)

Priority Applications (3)

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EP09761196A EP2300342A4 (en) 2008-06-10 2009-04-15 Hand held non-adhesive tape dispenser with friction brakes
CN200980122582.8A CN102056826B (en) 2008-06-10 2009-04-15 A handheld non-adhesive strip dispenser with friction brake
US12/737,015 US20110155839A1 (en) 2008-06-10 2009-04-15 Hand held non-adhesive tape dispenser with friction brake

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12919408P 2008-06-10 2008-06-10
US61/129,194 2008-06-10

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EP (1) EP2300342A4 (en)
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EP2300342A4 (en) 2011-06-15
CN102056826B (en) 2015-07-08
EP2300342A1 (en) 2011-03-30
US20110155839A1 (en) 2011-06-30
CN102056826A (en) 2011-05-11

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