WO2017003437A1 - Boulon de fixation pour charnière de couvercle de trou d'homme portable - Google Patents

Boulon de fixation pour charnière de couvercle de trou d'homme portable Download PDF

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Publication number
WO2017003437A1
WO2017003437A1 PCT/US2015/038424 US2015038424W WO2017003437A1 WO 2017003437 A1 WO2017003437 A1 WO 2017003437A1 US 2015038424 W US2015038424 W US 2015038424W WO 2017003437 A1 WO2017003437 A1 WO 2017003437A1
Authority
WO
WIPO (PCT)
Prior art keywords
manway
hinge
hinge plate
opening
flange
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/US2015/038424
Other languages
English (en)
Inventor
Edward A. Depietro
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.)
Universal Hinge Corp
Original Assignee
Universal Hinge Corp
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 Universal Hinge Corp filed Critical Universal Hinge Corp
Priority to CA2997542A priority Critical patent/CA2997542C/fr
Priority to AU2015400392A priority patent/AU2015400392B2/en
Priority to PCT/US2015/038424 priority patent/WO2017003437A1/fr
Publication of WO2017003437A1 publication Critical patent/WO2017003437A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/10—Manholes; Inspection openings; Covers therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/041—Specially-shaped shafts
    • F16B35/044—Specially-shaped ends
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/12—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with locking-pins or split-pins thrust into holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0015—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially rectangular, e.g. one-slot head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0038—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially prismatic with up to six edges, e.g. triangular, square, pentagonal, Allen-type cross-sections

Definitions

  • the present invention relates generally to "manway" covers for access to enclosed spaces such as tanks, conduits, storage areas, heat exchanger tubes, strainers, and the like. Particularly, the present invention relates to attachment bolts used with mechanisms for handling the removal and installation of "manway" covers that are either too hazardous, or too heavy, or too cumbersome to be handled by an unaided individual.
  • Manway covers are typically large, heavy, metal plates that are bolted to an opening.
  • the definition of "manway covers” expressly means any heavy covers or closures used on pressure vessels, vacuum vessels, atmospheric vessels, heat exchangers, heat exchanger channel covers, heat exchanger channels, heat exchanger bonnets, heat exchanger shell covers, dished heads, domed heads, half covers such as on divided water box heat exchangers, chiller condensers, chiller heat exchangers, chiller coolers, inspection ports, strainers, or any type of blanking plate and is not construed to be limited to only covers used on openings that are dimensionally-sized to allow passage of a man.
  • the most common are circularly-shaped and mate to a flange by way of a plurality of bolts evenly spaced around the periphery of the opening.
  • the heavy covers may be any shape.
  • the defined manway covers typically provide access to enclosed spaces such as tanks, conduits, storage areas, transfer tubes, pressure vessels, vacuum vessels, atmospheric vessels, heat exchangers, heat exchanger channel covers, heat exchanger channels, heat exchanger bonnets, strainers, and the like.
  • covers are typically found in power plants, co-generation power plants, steam generation plants, chemical plants, petrochemical plants, refineries, pharmaceutical plants, air separation plants, beverage plants, food processing plants, heating and cooling facilities, buildings with central heating and cooling systems, buildings with chiller cooling systems, water treatment plants, waste management plants, dairies, tank farms, gas storage facilities, liquid natural gas storage facilities, manufacturing facilities and or any facility that has tanks, vessels, piping, heat exchangers, chillers, boilers, turbines, strainers, and/or equipment of similar nature.
  • FIG. 1 A is a perspective cover view of hinge plate 30 attached to cover 4.
  • Fig. 1 B is a perspective flange view of hinge plate 20 attached to flange 2.
  • Fig. 16C is an outside perspective view of hinge 10 where cover 4 is in an open position relative to flange 2.
  • a linkage member 40 is attached to the pair of elongated hinge plates 20, 30 where each of the hinge plates 20, 30 has one or more hinge plate openings 22, 32 for aligning with corresponding manway flange and manway cover openings.
  • a pivot connection 50 pivotally connects linkage member 40 of hinge plate 20 to linkage member 40 of hinge plate 30, which permits hinge plates 20, 30 to pivot relative to each other and which are configured to swing manway cover 4 away from manway opening 6 providing access to the inside of the manway structure.
  • an optional cutout or notch 12 provides access to cover bolts not originally removed for attaching hinge 10 to cover 4 and flange 2.
  • An alternative to a cutout or notch 12 is a plurality of apertures that are located in hinge plates 20, 30 that coincide with cover/flange bolts.
  • a manway cover 4 is attached to a manway flange 2 with a plurality of bolts 5.
  • the manway flange 2 is permanently affixed to an access tube 3 that typically leads to a much larger internal space such as, for example, a tank.
  • a portable manway hinge device 10 is attachable to and removable from the manway cover 4 and the manway flange 2 using the cover bolts, other standard bolts, or specially-designed expansion bolts. The bolts are inserted from the outside surfaces of the manway cover 4 and the manway flange 2.
  • Figure 2 is an enlarged partial top view of the removable and portable manway hinge 10 having a flange hinge plate 20 and a cover hinge plate 30 attached to the manway flange 2 and manway cover 4, respectively.
  • the bolts 5 are inserted into the respective flange and cover bolt openings to secure the hinge plates 20, 30 to the manway flange 2 and cover 4.
  • U.S. Patent No. 8,038,031 (201 1 , DePietro et al.) discloses a portable manway cover hinge device.
  • the hinge device has a pair of hinge plates where each hinge plate has a support member with a hinge aperture positioned for alignment with a bolt opening of a manway cover and a manway flange, a linkage member adjacent a first end of each hinge plate and extending out of the plane of the hinge plate, and a pivotal connection coupling overlapping pairs of the linkage member of the pair of hinge plates.
  • U.S. Patent No. 8,784,024 discloses a pull-up bolt assembly for frictionally supporting a high-weight structure to a hinge component using an opening or recess in the high-weight structure.
  • the bolt assembly includes a pull-up bolt member having a threaded shaft with a first shaft end and a second shaft end, and an abutting member with a tapered surface formed at the first shaft end, the abutting member being wider than and tapering toward the threaded shaft, a nut component with an external torque-applying surface threadably connected to the threaded shaft, a tapered member with a tapered end portion and a flange formed between the external torque-applying surface of the nut component and the tapered end portion wherein the tapered end portion faces toward the tapered surface of the abutting member, and an expandable friction member disposed around the threaded shaft between the abutting member and the tapered member whereby the expandable friction member expands when the nut component is threadably moved toward the abutting member of the pull-up bolt member.
  • the portable manway cover hinge has provided an easy and convenient way for removing and/or installing, supporting, and/or storing a manway cover.
  • the portable manway cover hinge has also made it possible for use in confined or congested areas to remove and/or install, support, and/or store a manway cover.
  • the portable manway cover hinge has further made it possible for one man to handle, support, store, and install a manway cover.
  • the present invention achieves these and other objectives by providing, in combination, an attachment bolt and a portable manway hinge where the attachment bolt is configured to permit attaching the portable manway hinge to a manway flange where there is restricted space behind the manway flange to allow use of standard attachment bolts and/or pins.
  • the manway hinge includes a pair of hinge plates adapted for attaching one of the pair of hinge plates to an outside, back surface of a manway flange and the other of the pair of hinge plates to an outside front surface of a manway cover where each hinge plate has at least one hinge plate opening positioned for alignment with a bolt opening of the manway cover and the manway flange, as the case may be, and a specially-designed attachment bolt for connecting the one of the pair of hinge plates to the manway flange.
  • the attachment bolt has a threaded portion, a hinge plate portion, and a retaining pin.
  • the threaded portion has a first threaded end and a second threaded end where the first threaded end is adapted for receiving a bolt turning tool to thereby move the threaded portion into and out of a threaded flange bolt opening.
  • the hinge plate portion has a diameter smaller than a minor diameter of the threaded portion and it extends from the second threaded end a predefined distance to a distal hinge portion end.
  • the hinge plate portion has length sufficient to extend through the hinge plate opening in the one of the pair of hinge plates positioned against the outside surface of the manway flange.
  • the distal hinge portion end has a transverse opening for receiving therein a portion of the retaining pin so that the retaining pin retains the hinge plate against the manway flange when the threaded portion is turned to retract the hinge plate portion into the flange bolt opening.
  • the first threaded end of the attachment bolt has a slot that is transverse to the first threaded end where the transverse slot is adapted for receiving a straight screwdriver tool whereby the tool is used to insert and/or retract the attachment bolt.
  • the first threaded end of the attachment bolt has either a male extension or a female recess adapted for receiving one of an alien-tipped tool, a star-tipped tool, a phillips-tipped tool, and a flat-tipped tool.
  • the method includes removing a plurality of manway cover bolts from a portion of the manway cover and manway flange, providing a portable manway cover hinge that has a pair of hinge plates where each hinge plate has at least one hinge opening positioned for alignment with a bolt opening of the manway cover and manway flange, and aligning a hinge plate opening of the hinge plate with one of the plurality of bolt openings of the portion of the manway cover and the manway flange from which the bolts were removed.
  • the method further includes inserting a specially-designed attachment bolt into one of the bolt openings of the manway flange through the corresponding manway cover bolt opening a sufficient distance where the attachment bolt extends beyond the outside, back surface of the manway flange a distance greater than the thickness of the hinge plate to be attached to the manway flange.
  • the method also includes aligning a hinge plate opening of the hinge plate with one of the plurality of bolt openings of the portion of the manway cover and the manway flange from which the bolts were removed and in which the attachment bolt was inserted and positioning the hinge plate against the manway flange.
  • the method requires inserting a removable retaining pin into a transverse opening of the hinge plate portion of the attachment bolt followed by retracting the attachment bolt to a point in the flange bolt opening so that the retaining pin retains the hinge plate against the manway flange.
  • the other of the pair of hinge plates is then attached to the manway cover by aligning the hinge plate aperture(s) with the corresponding manway cover aperture(s), inserting a pin into each hinge aperture and securing each pin within the corresponding cover bolt opening.
  • the method further includes providing a specially-designed attachment bolt having a threaded portion and a hinge plate portion connected to the threaded portion where the threaded portion has a length smaller than the length of the manway flange opening such that the threaded portion always remains within the manway flange opening when the attachment bolt is retracted to cause the retaining pin to retain the hinge plate against the manway flange.
  • the specially-designed attachment bolt has a threaded portion with a first threaded end and a second threaded end.
  • the hinge plate portion has a diameter smaller than a minor diameter of the threaded portion where the hinge plate portion extends from the second threaded end to a distal hinge plate portion end where the distal hinge plate portion end has the transverse opening through the hinge plate portion.
  • the attachment bolt is inserted a sufficient distance whereby the transverse opening extends beyond the hinge plate aperture of the one of the pair of hinge plates.
  • the hinge plate portion has a length to accommodate the thickness of the hinge plate between the transverse opening and the second threaded end of the threaded portion.
  • the present invention may also be used with two portable manway hinge devices.
  • the optional component is a hinge connector that connects one hinge member of one hinge device to a serially-aligned hinge component of an adjacent hinge device.
  • the hinge connector may be attached between the two serially aligned hinge components using alignment pins, threaded rods, securing brackets, and the like.
  • the optional component is a leveling member connected at or adjacent one end of the hinge device.
  • the leveling member on the flange hinge member may be aligned for contact with the peripheral edge of the flange or with the manway extension connected to the flange.
  • the leveling member on the cover hinge member is aligned for contact with the peripheral edge of the cover.
  • the attachment bolt has a threaded portion, a hinge plate portion and a removable retaining pin.
  • the threaded portion has a first threaded end and a second threaded end where the first threaded end is adapted for connecting a bolt turning tool to thereby move the threaded portion into and out of a threaded flange bolt opening.
  • the threaded portion also has a length that will be completely contained within a corresponding manway flange opening in which it is used to securely hold a hinge plate of a manway hinge against the manway flange.
  • the hinge plate portion has a diameter smaller than a minor diameter of the threaded portion and extends from the second threaded end a predefined distance to a distal hinge portion end.
  • the distal hinge portion end has a transverse opening through the hinge plate portion where the hinge plate portion is adapted to extend through an attachment bolt opening in a hinge plate of the portable manway hinge and adapted to provide a length between the second threaded end and the transverse opening sufficient to position the transverse opening beyond the hinge plate.
  • the removable retaining pin is insertably disposed within the transverse opening of the hinge plate portion whereby the removable retaining pin retains the hinge plate against the manway flange when the threaded portion is turned to retract the hinge plate portion into the flange bolt opening.
  • the attachment bolt has slot in the first threaded end that is transverse to the first threaded end.
  • the first threaded end of the attachment bolt has either a male extension or a female recess adapted for receiving one of an alien-tipped tool, a star-tipped tool, a phillips-tipped tool, and a flat-tipped tool.
  • FIGURE 1 A is a perspective view of one embodiment of the manway hinge of the prior art attached to a manway flange and manway cover showing the manway cover in a closed and supported position.
  • FIGURE 1 B is a perspective view of one embodiment of the manway hinge of the prior art attached to a manway flange and manway cover showing the back side of the manway flange and a portion of an access tube.
  • FIGURE 1 C is a perspective view of one embodiment of the manway hinge of the prior art attached to a manway flange and a manway cover showing the manway cover in an open position.
  • FIGURE 2 is a partial side view of the prior art arrangement of the hinge plates and retaining bolts connected to a manway flange and a manway cover.
  • FIGURE 3 is a partial side view of the arrangement of the hinge plates and the attachment bolt of the present invention connected to a manway flange having restricted space between the manway flange and the access tube.
  • FIGURE 4 is a back, perspective view of the present invention attached to a hinge plate on the back side of the manway flange showing the removable retaining pin.
  • FIGURE 5 is a perspective view of one embodiment of the attachment bolt of the present invention.
  • FIGURE 6 is a side view of the attachment bolt shown in Fig. 5.
  • FIGURE 7 is a front view of the attachment bolt shown in Fig. 5.
  • FIGURE 8 is a top view of one embodiment of the attachment bolt of the present invention showing a tool receiving end.
  • FIGURE 9 is a top view of one embodiment of the attachment bolt of the present invention showing another embodiment of a tool receiving end.
  • FIGURE 10 is a distal end view of the attachment bolt of the present invention.
  • FIGURE 1 1 is a partial side view of the attachment bolt of the present invention assembled through manway flange and a hinge plate showing the relationship of the attachment bolt structure to the manway flange bolt opening and the hinge plate.
  • FIGURE 12 is a partial side view of the attachment bolt of the present invention assembled through manway flange and a hinge plate showing the relationship of the attachment bolt structure to the manway flange bolt opening and the hinge plate after engagement of the attachment bolt, the hinge plate and the manway flange.
  • the term “alien-tipped tool” means any tool that has a tip portion configured as a male extension or female recess having a shape similar to that known in the art as an alien wrench configuration.
  • the term “star tipped tool” means any tool that has a tip portion configured as a male extension or female recess having a shape similar to that known in the art as a torx wrench configuration.
  • the term “phillips- tipped tool” means any tool that has a tip portion configured as a male extension or female recess having a shape similar to that known in the art as a phillips screwdriver configuration.
  • the term “flat-tipped tool” means any tool that has a tip portion configured as a male extension or female recess having a shape similar to that known in the art as a flat screwdriver configuration.
  • FIG. 3-12 The present invention is illustrated in Figs. 3-12.
  • Figure 3 illustrates the use of a portable manway cover hinge 10 on a manway.
  • Hinge 10 includes a pair of elongated hinge members 20, 30, a linkage member 40 and a plurality of support members 40.
  • Elongated hinge member 20 is connected to a manway flange 52 and the elongated hinge member 30 is connected to the peripheral edge of manway cover 54.
  • Linkage member 40 is attached to the pair of elongated hinge members 20, 30 and a pivot connection 50 pivotally connects linkage member 40 of hinge plate 20 to linkage member 40 of hinge plate 30, which permits hinge plates 20, 30 to pivot relative to each other and which are
  • FIG. 3 What is notable about Fig. 3 is the shape of the manway access tube 56 connected to manway flange 52.
  • the manway access tube 56 flares outward to a larger diameter over a relatively short length of manway access tube 56. This widening configuration of manway access tube 56 restricts the space behind and between manway flange 52 and access tube 56 such that the conventional attachment bolts 5 cannot be inserted from the back of manway flange 52.
  • attachment bolt assembly 100 includes a removable retaing pin 130 through distal end portion 1 10 of attachment bolt 102. Retaining pin 130 prevents hinge plate 20 from disengaging with attachment bolt 102 and secures hinge plate 20 to manway flange 52.
  • FIG. 5 is an expanded view of attachment bolt 100.
  • Attachment bolt assembly 100 includes an attachment bolt 102 and a removable pin 130.
  • Attachment bolt 102 has a threaded portion 1 12, a hinge plate portion 1 10, a transverse opening 122 in a distal hinge plate portion end 120, and a removable retaining pin 130.
  • Threaded portion 1 12 has a thread diameter and pitch that matches the threads formed in a manway flange opening 52a and a length that is shorter than a thickness of manway flange 52.
  • Removable retaining pin 130 has a diameter that is slightly smaller than the diameter of transverse opening 122 so that retaining pin 130 is easily inserted into transverse opening 122 but maintains a close fit to reduce play between the outer surface 130a of retaining pin 130 and the inner surface 122a of transverse opening 122.
  • Fig. 6 is a side view of the embodiment of attachment bolt 100 shown in Fig. 5.
  • Attachment bolt 100 has threaded portion 1 12 with a first threaded end 1 14 and a second threaded end 1 16.
  • first threaded end 1 14 has a bolt slot 122 formed into first threaded end 1 14 where bolt slot 122 is transverse to threaded portion 1 12.
  • Bolt slot 122 is adapted for receiving a tool such as a flat-tipped screwdriver so that attachment bolt 100 may be inserted into and retracted out of manway flange bolt opening 52a.
  • bolt slot 122 is shown extending in substantially the same direction as transverse opening 122 in hinge plate portion 1 10, bolt slot 122 doesn't have to be but may be positioned at any angle relative to transverse opening 122.
  • Fig. 7 is a front view of attachment bolt 102. As can be seen, transverse opening 122 extends completely through hinge plate portion 1 10. Hinge plate portion 1 10 has a diameter A that is smaller than the thread minor diameter B of threaded portion 1 12. The diameter A of hinge plate portion 1 10 being smaller than the thread minor diameter B is critical so that hinge plate portion 1 10 can pass through manway flange opening 52a and does not interfere with the internal threads of manway flange opening 52a, which threads are adapted to mate with the external threads of thread portion 1 12.
  • Fig. 8 is a top end view of one embodiment of attachment bolt 102 having a bolt slot 122 formed into first threaded end 1 14.
  • Bolt slot 122 is sized to accept a flat-tipped tool such as a flat end screwdriver and the like.
  • Fig. 9 is a top end view of another embodiment of attachment bolt 102 having a bolt recess 123 formed into first threaded end 1 14.
  • Bolt recess 123 is sized to accept an alien- tipped tool such as an alien wrench and the like.
  • first threaded end 1 14 may have any male extension or female recess adapted for receiving one of an alien-tipped tool, a star-tipped tool, a phillips-tipped tool, and flat-tipped tool formed into or onto first threaded end 1 14 to accommodate a tool having a corresponding tool end that is used to insert and/or retract attachment bolt 102 in manway flange opening 52a.
  • Fig. 10 is bottom end view of the attachment bolt 102 shown in Fig. 5. As shown, distal hinge portion end 120 has a diameter A that is smaller than thread minor diameter B.
  • Figure 1 1 there is illustrated a cross-sectional view of the manway flange opening 52a with one embodiment of the attachment bolt assembly 100 of the present invention.
  • Manway flange opening 52a has an internal thread for receiving the manway cover bolts that secure the manway cover 54 to the manway flange 52.
  • Attachment bolt 102 is positioned within manway flange opening 52a such that threaded portion 1 12 is adjacent the outside, back surface 53 of manway flange 52.
  • Hinge plate portion 1 10 extends through hinge plate opening 22 of hinge plate 20 so that hinge plate 20 is positioned between manway flange 52 and transverse opening 122 of hinge plate portion 1 10.
  • Removable retaining pin 130 extends through transverse opening 122.
  • Figure 12 illustrates a cross-sectional view of the manway flange opening 52a with attachment bolt assembly 100.
  • attachment bolt 102 is re-positioned within manway flange opening 52a so that removable retaining pin 130 disposed within transverse opening 122 captures hinge plate 20 against the outside back surface 53 of manway flange 52.
  • the present invention is designed to address the problem with limited space behind the manway flange 52 that is connected to an access tube that flares outwardly and has a larger circumferential distance at the connection point to the tank than at the connection point to the manway flange 52, it is
  • the present invention may also be used for conventional manway cover/manway flange configurations or where the access tube has constant circumferential distance but that the manway flange is so close to the tank that the space behind the manway flange 52 is so restricted that standard securing bolts and/or pins used for attaching manway hinge 10 to manway flange 52 cannot be used.
  • the method involves providing a portable manway cover hinge 100 that has a pair of hinge plates 20, 30 where each hinge plate 20, 30 has a hinge aperture 22, 32, respectively. Hinge apertures 22, 32 are located in hinge plates 20, 30 for alignment with a corresponding bolt opening 52a, 54a of manway flange 52 and manway cover 54. A plurality of manway cover bolts 5 are removed from a portion of manway cover 54 where the plurality of manway cover bolts 5 are selected to align with the position of the hinge plate apertures 22, 33 of hinge plates 20, 30. Once removed, the specially-designed attachment bolt 100 is inserted into each manway flange opening 52a through the corresponding manway cover opening 54a.
  • Attachment bolt 100 is inserted into each manway flange opening 52a with hinge plate portion 1 10 being inserted first followed by threaded portion 1 12 so that hinge plate portion 1 10 extends beyond the outside, back surface 53 of the manway flange 52 a predefined distance that is greater than the thickness of hinge plate 20.
  • Threaded portion 1 12 is threaded into manway flange opening 52a to a point so that there is a sufficient length of hinge plate portion 1 10 to accommodate hinge plate 20 between transverse opening 122 and the outside, back surface 53 of manway flange 52 to allow insertion of removable retaining pin 130 into transverse opening 122.
  • hinge plate 20 is assembled onto attachment bolt 100 by aligning hinge plate aperture 22 of hinge plate 20 with hinge plate portion 1 10 and sliding hinge plate 20 against the outside, back surface 53 of manway flange 52. Because attachment bolt 100 was inserted to accommodate hinge plate 20 between transverse opening 122 and the outside, back surface 53 of manway flange 52, removable retaining pin 130 is now inserted into transverse opening 122 so that substantially equal portion of removable retaining pin 130 extends from opposite sides of hinge plate portion 1 10. Alignment bolt 100 is then retracted (i.e. unscrewed) from its position so that removable retaining pin 130 captures hinge plate 20 against the outside, back surface 53 of manway flange 52 to thereby hold hinge plate 20 securely against manway flange 52. Threaded portion 1 12 has a predefined length so that threaded portion 1 12 remains completely within manway flange opening 52a after securing hinge plate 20 against the outside, back surface 53 of manway flange 52.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Hinges (AREA)

Abstract

L'invention concerne, en combinaison, un ensemble boulon de fixation et une charnière de trou d'homme portable destinée à être montée sur une bride de trou d'homme et un couvercle de trou d'homme. L'ensemble boulon de fixation comprend un boulon de fixation et une broche de retenue amovible, dans laquelle le boulon de fixation est configuré pour être inséré dans une ouverture de bride de trou d'homme à travers une ouverture correspondante du couvercle de trou d'homme et une ouverture de plaque de charnière correspondante de la charnière de trou d'homme afin de retenir une plaque de charnière de la charnière de trou d'homme portable contre la surface arrière extérieure de la bride de trou d'homme avec la broche de retenue amovible disposée transversalement à travers une ouverture transversale dans une extrémité de portion de charnière distale du boulon de fixation.
PCT/US2015/038424 2015-06-30 2015-06-30 Boulon de fixation pour charnière de couvercle de trou d'homme portable Ceased WO2017003437A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA2997542A CA2997542C (fr) 2015-06-30 2015-06-30 Boulon de fixation pour charniere de couvercle de trou d'homme portable
AU2015400392A AU2015400392B2 (en) 2015-06-30 2015-06-30 Attachment bolt for portable manway cover hinge
PCT/US2015/038424 WO2017003437A1 (fr) 2015-06-30 2015-06-30 Boulon de fixation pour charnière de couvercle de trou d'homme portable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2015/038424 WO2017003437A1 (fr) 2015-06-30 2015-06-30 Boulon de fixation pour charnière de couvercle de trou d'homme portable

Publications (1)

Publication Number Publication Date
WO2017003437A1 true WO2017003437A1 (fr) 2017-01-05

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PCT/US2015/038424 Ceased WO2017003437A1 (fr) 2015-06-30 2015-06-30 Boulon de fixation pour charnière de couvercle de trou d'homme portable

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AU (1) AU2015400392B2 (fr)
CA (1) CA2997542C (fr)
WO (1) WO2017003437A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112298835A (zh) * 2019-07-31 2021-02-02 广东闻扬环境科技有限公司 法兰盖快开机构以及法兰装置
US20210283559A1 (en) * 2020-03-12 2021-09-16 United States Gypsum Company Mixer rotor pin with hole

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1075759A (en) * 1912-08-07 1913-10-14 Albert E Burridge Headless bolt.
JPH0257711A (ja) * 1988-08-23 1990-02-27 Rinpei Shimabukuro 抜掛片締ボルト
WO2000052345A1 (fr) * 1999-03-04 2000-09-08 Pasquale Fusco Attaches
US20110017759A1 (en) * 2007-04-17 2011-01-27 Universal Hinge Corporation Portable manway cover hinge device and methods
US20130078051A1 (en) * 2008-08-07 2013-03-28 Universal Hinge Corporation Pull-up bolt assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1075759A (en) * 1912-08-07 1913-10-14 Albert E Burridge Headless bolt.
JPH0257711A (ja) * 1988-08-23 1990-02-27 Rinpei Shimabukuro 抜掛片締ボルト
WO2000052345A1 (fr) * 1999-03-04 2000-09-08 Pasquale Fusco Attaches
US20110017759A1 (en) * 2007-04-17 2011-01-27 Universal Hinge Corporation Portable manway cover hinge device and methods
US20130078051A1 (en) * 2008-08-07 2013-03-28 Universal Hinge Corporation Pull-up bolt assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112298835A (zh) * 2019-07-31 2021-02-02 广东闻扬环境科技有限公司 法兰盖快开机构以及法兰装置
US20210283559A1 (en) * 2020-03-12 2021-09-16 United States Gypsum Company Mixer rotor pin with hole
WO2021183179A1 (fr) * 2020-03-12 2021-09-16 United States Gypsum Company Outil d'insertion et de retrait pour axe de rotor de mélangeur de gypse et mélangeur de gypse ayant cet axe
US11344854B2 (en) 2020-03-12 2022-05-31 Knauf Gips Kg Mixer rotor pin with hole

Also Published As

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AU2015400392A1 (en) 2018-02-15
CA2997542C (fr) 2022-10-04
CA2997542A1 (fr) 2017-01-05
AU2015400392B2 (en) 2021-04-15

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