GB1420521A - Anti-extrusion devices suitable for use in sealing assemblies - Google Patents

Anti-extrusion devices suitable for use in sealing assemblies

Info

Publication number
GB1420521A
GB1420521A GB255273A GB255273A GB1420521A GB 1420521 A GB1420521 A GB 1420521A GB 255273 A GB255273 A GB 255273A GB 255273 A GB255273 A GB 255273A GB 1420521 A GB1420521 A GB 1420521A
Authority
GB
United Kingdom
Prior art keywords
devices suitable
ring
rings
sealing assemblies
extrusion devices
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
GB255273A
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.)
Dowty Seals Ltd
Original Assignee
Dowty Seals 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 Dowty Seals Ltd filed Critical Dowty Seals Ltd
Priority to GB255273A priority Critical patent/GB1420521A/en
Priority to IT1926574A priority patent/IT1006843B/en
Priority to DE19742402456 priority patent/DE2402456A1/en
Priority to JP796374A priority patent/JPS49103046A/ja
Publication of GB1420521A publication Critical patent/GB1420521A/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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/166—Sealings between relatively-moving surfaces with means to prevent the extrusion of the packing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Sealing Devices (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1420521 Piston rings DOWTY SEALS Ltd 21 Dec 1973 [18 Jan 1973] 2552/73 Heading F2T The turns of an anti-extrusion ring of generally helical configuration are formed as separate ring elements 37, 38 and united, at a position 41, remote from radial splits 39 and 40. The ring elements 37, 38 may be of hard nylon, which is welded ultrasonically at 41. Two such rings seat in grooves between a rubber piston ring (14, Fig. 1, not shown) and two split bearing rings (28, 29) of hard nylon.
GB255273A 1973-01-18 1973-01-18 Anti-extrusion devices suitable for use in sealing assemblies Expired GB1420521A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB255273A GB1420521A (en) 1973-01-18 1973-01-18 Anti-extrusion devices suitable for use in sealing assemblies
IT1926574A IT1006843B (en) 1973-01-18 1974-01-10 ANTI-EXTRUSION DEVICES SUITABLE FOR USE IN SEALING COMPLEXES
DE19742402456 DE2402456A1 (en) 1973-01-18 1974-01-18 ANTI-EXTRUSION DEVICE FOR SEALING ARRANGEMENTS
JP796374A JPS49103046A (en) 1973-01-18 1974-01-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB255273A GB1420521A (en) 1973-01-18 1973-01-18 Anti-extrusion devices suitable for use in sealing assemblies

Publications (1)

Publication Number Publication Date
GB1420521A true GB1420521A (en) 1976-01-07

Family

ID=9741606

Family Applications (1)

Application Number Title Priority Date Filing Date
GB255273A Expired GB1420521A (en) 1973-01-18 1973-01-18 Anti-extrusion devices suitable for use in sealing assemblies

Country Status (4)

Country Link
JP (1) JPS49103046A (en)
DE (1) DE2402456A1 (en)
GB (1) GB1420521A (en)
IT (1) IT1006843B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150014945A1 (en) * 2013-07-12 2015-01-15 GM Global Technology Operations LLC Back-Up Ring Design "Split & Close"
CN108716379A (en) * 2018-07-25 2018-10-30 百勤能源科技（惠州）有限公司 A kind of solvable bridge plug of big orifice

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4229013A (en) * 1979-07-02 1980-10-21 Greene, Tweed & Co., Inc. Spring seal
CN108644382B (en) * 2018-04-25 2020-11-03 北方重工富勒（沈阳）矿业有限公司 Split type sealing structure of gyratory crusher

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150014945A1 (en) * 2013-07-12 2015-01-15 GM Global Technology Operations LLC Back-Up Ring Design "Split & Close"
CN104482201A (en) * 2013-07-12 2015-04-01 通用汽车环球科技运作有限责任公司 Back-up ring design ''split & close''
CN108716379A (en) * 2018-07-25 2018-10-30 百勤能源科技（惠州）有限公司 A kind of solvable bridge plug of big orifice

Also Published As

Publication number Publication date
DE2402456A1 (en) 1974-07-25
IT1006843B (en) 1976-10-20
JPS49103046A (en) 1974-09-28

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed