EP3149379A1 - Raccord de tuyau flexible - Google Patents

Raccord de tuyau flexible

Info

Publication number
EP3149379A1
EP3149379A1 EP15800119.8A EP15800119A EP3149379A1 EP 3149379 A1 EP3149379 A1 EP 3149379A1 EP 15800119 A EP15800119 A EP 15800119A EP 3149379 A1 EP3149379 A1 EP 3149379A1
Authority
EP
European Patent Office
Prior art keywords
pipe
length
wall
opening
enlarged opening
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.)
Withdrawn
Application number
EP15800119.8A
Other languages
German (de)
English (en)
Other versions
EP3149379A4 (fr
Inventor
Dennis R. Todd
Daniel R. TOOD
Evan M. Young
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.)
Cutting Edge Fittings and More LLC
Original Assignee
Cutting Edge Fittings and More LLC
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
Priority claimed from US14/290,964 external-priority patent/US9835275B2/en
Application filed by Cutting Edge Fittings and More LLC filed Critical Cutting Edge Fittings and More LLC
Publication of EP3149379A1 publication Critical patent/EP3149379A1/fr
Publication of EP3149379A4 publication Critical patent/EP3149379A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints; Joints allowing movement
    • F16L27/10—Adjustable joints; Joints allowing movement comprising a flexible connection only
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints; Joints allowing movement
    • F16L27/10—Adjustable joints; Joints allowing movement comprising a flexible connection only
    • F16L27/1021—Adjustable joints; Joints allowing movement comprising a flexible connection only comprising an intermediate resilient element, e.g. a ring

Definitions

  • the present invention relates generally to pipe fittings, and methods of
  • Common connectors include couplings, crosses, elbows, tees, unions and wyes. These connectors are used to join two lengths of pipe, such as PVC pipe for carrying fluids. Elbows are used to account for direction changes in the pipe string. Common elbow fittings are at fixed angles and include 90 degree elbows, 45 degree elbows, and 22 1 ⁇ 2 degree elbows.
  • Swivel or ball fittings such as are disclosed in U.S. Patent No. 2,286,565, have also been used to allow for connecting pipes that are not aligned at angles which are common to elbow fittings as discussed above.
  • these types of fittings have multiple additional parts and components, such as o-rings, compression fittings and the like, that can create additional opportunities for leakage.
  • the present invention overcomes these limitations by providing a variable fitting that has no gaskets, swivels, or moving parts that could leak.
  • the device and method of the present invention are intended to replace existing pipe fittings that only provide for a fixed angle or are made of flexible materials that are inferior due to the lack of rigidity and increased risk of failure or blockage.
  • an apparatus for joining a first length of pipe to a second length of pipe at an arbitrary angle includes a primary fitting having a substantially circular opening at a first end thereof for receiving an end of said first length of pipe, and an enlarged opening at a second end thereof.
  • a first flexible coupling member may be positioned in the enlarged opening.
  • the first flexible coupling member includes an outer wall having an outer surface engaging an inner surface of the enlarged opening, and an inner wall having a lower end connected to a lower end of the outer wall.
  • the inner wall further includes a substantially circular opening therein for receiving an end of the second length of pipe.
  • a further aspect of the invention includes a second, rigid member having an outer surface engaging the substantially circular opening of the inner wall.
  • An inner surface of the second, rigid member is configured to receive the end of the second length of pipe.
  • the first, flexible member may be formed of a polymeric material that is strong, resilient and unaffected by soil conditions. That material may be inert and resistant to chemicals, ultraviolet rays, fungus growth, and normal sewer gases.
  • the polymeric material may be leak-proof, root-proof and seals against infiltration and exfiltration.
  • the polymeric material may be elastomeric polyvinyl chloride (PVC).
  • the primary fitting and the second, rigid member may preferably be formed of a rigid plastic material selected from a group consisting of PVC, CPVC, ABS, SDR 21, SDR 26 and SDR 35.
  • the enlarged opening is fish-mouth shaped to allow for a significant range of motion.
  • the enlarged opening may be substantially cone shaped.
  • FIGURE 1 is a front perspective view of a fish mouth pipe fitting according to a presently preferred embodiment of the invention.
  • FIGURE 2 a top view of the fish mouth pipe fitting shown in FIGURE 1.
  • FIGURE 3 is a front elevation view of the fish mouth pipe fitting shown in FIGURE 1.
  • FIGURE 4 is a side elevation view of the fish mouth pipe fitting shown in FIGURE 1.
  • FIGURE 5 is a side sectional view of the fish mouth pipe fitting of FIGURE 3 shown along the line A- A.
  • FIGURE 6 is a bottom view of the fish mouth pipe fitting shown in FIGURE 1.
  • FIGURE 7 is a side perspective view of the fish mouth pipe fitting shown in FIGURE 1 with a flexible fitting inserted into the fish mouth opening.
  • FIGURE 8 is a front perspective view of the fish mouth pipe fitting shown in FIGURE 1 with a flexible fitting inserted into the fish mouth opening.
  • FIGURE 9 is a top view of the fish mouth pipe fitting shown in FIGURE 1 with a flexible fitting inserted into the fish mouth opening.
  • FIGURE 10 is a front perspective view of a fish mouth pipe fitting according to an alternative embodiment of the invention.
  • FIGURE 11 a top view of the fish mouth pipe fitting shown in FIGURE 10.
  • FIGURE 12 is a front elevation view of the fish mouth pipe fitting shown in FIGURE 10.
  • FIGURE 13 is a side elevation view of the fish mouth pipe fitting shown in FIGURE 10.
  • FIGURE 14 is a side sectional view of the fish mouth pipe fitting of FIGURE 12 shown along the line A- A.
  • FIGURE 15 is a bottom view of the fish mouth pipe fitting shown in FIGURE 10.
  • FIGURE 16 is a side perspective view of the fish mouth pipe fitting shown in FIGURE 10 with a flexible fitting inserted into the fish mouth opening.
  • FIGURE 17 is a top view of the fish mouth pipe fitting shown in FIGURE 10 with a flexible fitting inserted into the fish mouth opening.
  • the present invention is an innovative flexible pipe connector 10 having a primary fitting 12 which has a substantially circular opening 14 at a first end thereof, and a fish-mouth shaped opening 16 and a second end thereof.
  • the circular opening 14 at the first end is configured to receive an end of a pipe 20 therein.
  • the size of the circular opening 14 corresponds to the exterior diameter of the pipe to be received therein such that a tight, friction fit is created.
  • standard PVC and CPVC pipe, schedule 40 and schedule 80, used in plumbing applications have nominal diameters of 1 ⁇ 2", 3 ⁇ 4", 1", 1 1 ⁇ 4", 1 1 ⁇ 2", 2", 2 1 ⁇ 2", 3", 4", 5", 6", 8", 10", 12", 14" and 16".
  • the circular opening 14 may preferably be sized to accommodate one of these pipe sizes.
  • the fish-mouth shaped opening 16 can be formed directly into the end of a length of pipe.
  • the specific geometry of the fish-mouth opening 16 can be varied to accommodate a greater or lesser range of angles without departing from the spirit of the invention. An infinite number of angles between 0 degrees and 42 degrees can be achieved.
  • a flexible coupling 30 may be provided in the opening 16 to allow for a pipe to be inserted into the opening 16 at a variety of angles.
  • the flexible coupling 30 may include a first, flexible member 32 having an outer wall 34 with a shape similar to the shape of, and configured to engage, the opening 16, and an inner wall 36 having a substantially circular opening therein for engaging a second, rigid member 38.
  • the second, rigid member 38 has an opening therein for receiving a length of pipe (not shown) to be joined to the length of pipe 20 which is connected to the circular opening 14 in the fitting 12.
  • the opening in the inner wall 36 may be sized to receive the length of pipe (not shown) without the need for a second rigid member 38.
  • the first, flexible member 32 is formed of a polymeric material that is strong, resilient and unaffected by soil conditions.
  • the material must also be resistant to chemicals, ultraviolet rays, fungus growth, and normal sewer gases due to the inert nature and physical properties of the material.
  • the material must also be leak-proof, root-proof and seal against infiltration and exfiltration.
  • the first, fiexible member 32 is made of elastomeric polyvinyl chloride (PVC).
  • the outer wall 34 of the first flexible member 32 is secured and sealed against the inner wall of the opening 16.
  • the inner wall 36 of the first fiexible member 32 is secured and sealed against the outer surface of the second rigid member 38.
  • water-resistant or water-proof adhesive such as PVC cement
  • PVC cement some type of water-resistant or water-proof adhesive
  • the pipe connector 10 preferably comes pre-assembled in that the outer wall 34 of the first fiexible member 32 has been pre-glued to the opening 16 of the primary fitting 12 and the inner wall 36 of the first flexible member 32 has been pre-glued to the outer surface of the second rigid member 38.
  • Use of the pipe connector 10 at this point is as simple as priming one end of the outer surface of the pipe 20 and the inner surface of the circular opening 14.
  • Glue or PVC cement is then applied to the outer surface of the end of the pipe 20 and/or the inner surface of the circular opening 14.
  • the end of the pipe 20 is then inserted into the circular opening 14 and given a quarter turn. Once the glue/cement is dry, primer is applied to both the inner surface of the second rigid member 38 and the outer surface of the second pipe (not shown).
  • Glue or PVC cement is then applied to the inner surface of the second rigid member 38 and outer surface of the second pipe (not shown), and the end of the second pipe is inserted into the second rigid member 38 and given a quarter turn. Once the glue is dried, the fitting is ready for use.
  • the primary fitting 12 and second, rigid member 38 are preferably formed of a plastic material such as PVC or CPVC.
  • plastics such as ABS, SDR 21, SDR 26, SDR 35 as well as others that may now, or in the future be used in plumbing applications, may also be used.
  • Other rigid or semi-rigid materials other than plastics, such as metals or composite materials, are also contemplated.
  • FIGURES 10-17 An alternative embodiment of the present invention is shown in FIGURES 10-17. This alternative embodiment is identical to the preferred embodiment shown in FIGURES 10-17.
  • FIGURES 1-9 with the exception of the shape of the enlarged opening 16, and the shape of the corresponding outer wall 34 of the first flexible member 32.
  • the enlarged opening 16 and outer wall 34 are substantially cone shaped.
  • the alternative embodiment is identical to the preferred embodiment of FIGURES 1-9, wherein like reference numerals indicate like components. As such, to avoid repetition, a specific description of the remaining components of the alternative embodiment will not be discussed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints With Sleeves (AREA)
  • Sewage (AREA)

Abstract

L'invention concerne un raccord de tuyau flexible permettant de raccorder une première longueur de tuyau à une deuxième longueur de tuyau à un angle arbitraire. L'appareil comprend un raccord principal comportant une ouverture sensiblement circulaire à une première extrémité de celui-ci permettant de recevoir une extrémité d'une première longueur de tuyau, et une ouverture élargie à une deuxième extrémité de celui-ci permettant de recevoir un premier élément d'accouplement flexible. Le premier élément d'accouplement flexible comprend une paroi extérieure ayant une surface extérieure s'engageant avec une surface intérieure de l'ouverture élargie, et une paroi intérieure ayant une extrémité inférieure raccordée à une extrémité inférieure de la paroi extérieure. La paroi intérieure comporte de plus une ouverture sensiblement circulaire permettant de recevoir un deuxième élément rigide. La surface intérieure du deuxième élément rigide est configurée pour recevoir une extrémité de la deuxième longueur de tuyau. L'ouverture élargie dans le raccord principal est de préférence de forme bâillante, ou alternativement de forme conique. Un adhésif, tel que du ciment PVC, peut être utilisé pour coller ensemble les différents raccords, et des longueurs de tuyau pour former un raccord étanche.
EP15800119.8A 2014-05-29 2015-05-28 Raccord de tuyau flexible Withdrawn EP3149379A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/290,964 US9835275B2 (en) 2013-03-25 2014-05-29 Flexible pipe fitting
PCT/US2015/032994 WO2015184149A1 (fr) 2014-05-29 2015-05-28 Raccord de tuyau flexible

Publications (2)

Publication Number Publication Date
EP3149379A1 true EP3149379A1 (fr) 2017-04-05
EP3149379A4 EP3149379A4 (fr) 2018-02-21

Family

ID=54699810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15800119.8A Withdrawn EP3149379A4 (fr) 2014-05-29 2015-05-28 Raccord de tuyau flexible

Country Status (3)

Country Link
EP (1) EP3149379A4 (fr)
CA (1) CA2950286A1 (fr)
WO (1) WO2015184149A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2791450A (en) * 1952-02-27 1957-05-07 Carl J Hombach Oval rim pipe hub
FR2282595A1 (fr) * 1974-08-05 1976-03-19 Armosig Piece de raccordement pour liaison d'une canalisation de section circulaire avec un quelconque organe de reception
GB1477074A (en) * 1975-01-31 1977-06-22 Hepworth Iron Co Ltd Manufacture of pipe couplings
FR2396233A1 (fr) * 1977-07-01 1979-01-26 Everitube Emboitement de canalisation
US5232252A (en) * 1989-09-11 1993-08-03 Proprietary Technology, Inc. Adaptive connector assembly
JP2698185B2 (ja) * 1989-09-13 1998-01-19 エバタ株式会社 管継手
US5390960A (en) * 1993-06-09 1995-02-21 Blake; Willard R. Conduit branch fitting for fluid main line
JP2006322515A (ja) * 2005-05-18 2006-11-30 Mitsubishi Plastics Ind Ltd 管継手

Also Published As

Publication number Publication date
WO2015184149A1 (fr) 2015-12-03
CA2950286A1 (fr) 2015-12-03
EP3149379A4 (fr) 2018-02-21

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