GB1467307A - Tube fitting - Google Patents

Tube fitting

Info

Publication number
GB1467307A
GB1467307A GB3527174A GB3527174A GB1467307A GB 1467307 A GB1467307 A GB 1467307A GB 3527174 A GB3527174 A GB 3527174A GB 3527174 A GB3527174 A GB 3527174A GB 1467307 A GB1467307 A GB 1467307A
Authority
GB
United Kingdom
Prior art keywords
ring
nut
tubes
tube
wedge
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.)
Expired
Application number
GB3527174A
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.)
JFE Pipe Fitting Mfg Co Ltd
Original Assignee
Nippon Kokan Pipe Fitting Mfg Co Ltd
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 Nippon Kokan Pipe Fitting Mfg Co Ltd filed Critical Nippon Kokan Pipe Fitting Mfg Co Ltd
Priority to GB3527174A priority Critical patent/GB1467307A/en
Priority to DE2439100A priority patent/DE2439100A1/en
Priority to FR7428354A priority patent/FR2282082A1/en
Priority claimed from FR7428354A external-priority patent/FR2282082A1/en
Publication of GB1467307A publication Critical patent/GB1467307A/en
Expired 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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/08—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe
    • F16L19/083—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe the longitudinal cross-section of the ring not being modified during clamping
    • F16L19/086—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe the longitudinal cross-section of the ring not being modified during clamping with additional sealing means
    • 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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/075—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends specially adapted for spigot-and-socket joints for pipes of the same diameter

Abstract

1467307 Pipe couplings NIPPON KOKAN PIPE FITTING MFG CO Ltd 9 Aug 1974 35271/74 Heading F2G A fitting for connecting together two tubes 28 comprises a body 22 having a nut 24 screwed on each end thereof and located between the nut 24 and a counter base 30 at each end of the body 22 on elastic material sealing gasket 38, a backup ring 42, a split biting ring 44 having an outer surface 48 which increases in diameter toward the centre of the body 22 and an inner surface 50 which decreases in diameter towards the centre of the body, and an end face 46 abutting the ring 42 and defining with the surface 50 an acute circular edge 52, and a wedge ring 56 having an inner surface 58 complementary to the outer surface 48 of the split ring 44, the arrangement being such that on tightening of the nut 24, the circular edge 52 will be forced to bite into the associated tube 28 to resist any subsequent forces tending to withdraw the tube 28 and the gasket 38 will be forced to seal around the tube. The biting element 44 may be of steel and of greater hardness than the material of the tubes 28 and the wedge ring 56 may also be of steel or of an electrically non-conducting synthetic resin to provide insulation between the two tubes 28. In an alternative embodiment the nut 24 are formed with external screw threads and are screwed into the body 22 and the wedge rings 56 are formed integral with the nuts.
GB3527174A 1974-08-09 1974-08-09 Tube fitting Expired GB1467307A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB3527174A GB1467307A (en) 1974-08-09 1974-08-09 Tube fitting
DE2439100A DE2439100A1 (en) 1974-08-09 1974-08-14 PIPE CONNECTOR WITH LOCKING MECHANISM
FR7428354A FR2282082A1 (en) 1974-08-09 1974-08-14 Wedge action tube coupling - with pressure rings cutting into tube surfaces and triangular cross section seal rings

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3527174A GB1467307A (en) 1974-08-09 1974-08-09 Tube fitting
FR7428354A FR2282082A1 (en) 1974-08-09 1974-08-14 Wedge action tube coupling - with pressure rings cutting into tube surfaces and triangular cross section seal rings

Publications (1)

Publication Number Publication Date
GB1467307A true GB1467307A (en) 1977-03-16

Family

ID=33099909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3527174A Expired GB1467307A (en) 1974-08-09 1974-08-09 Tube fitting

Country Status (1)

Country Link
GB (1) GB1467307A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274889A (en) * 1993-02-04 1994-08-10 Shiow Duan Wang An improved connector for pipe coupling
GB2310698A (en) * 1996-02-27 1997-09-03 Perfection Corp Pipe coupling assembly for two spaced pipe ends

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274889A (en) * 1993-02-04 1994-08-10 Shiow Duan Wang An improved connector for pipe coupling
GB2310698A (en) * 1996-02-27 1997-09-03 Perfection Corp Pipe coupling assembly for two spaced pipe ends
GB2310698B (en) * 1996-02-27 1999-09-29 Perfection Corp Pipe coupling assembly
AU710743B2 (en) * 1996-02-27 1999-09-30 Perfection Corporation Pipe coupling assembly

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee