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GB2261920B - A method of making a seal - Google Patents

A method of making a seal

Info

Publication number
GB2261920B
GB2261920B GB9125477A GB9125477A GB2261920B GB 2261920 B GB2261920 B GB 2261920B GB 9125477 A GB9125477 A GB 9125477A GB 9125477 A GB9125477 A GB 9125477A GB 2261920 B GB2261920 B GB 2261920B
Authority
GB
United Kingdom
Prior art keywords
seal
making
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 - Fee Related
Application number
GB9125477A
Other versions
GB2261920A (en
GB9125477D0 (en
Inventor
David Henry Roberts
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 GB9125477A priority Critical patent/GB2261920B/en
Publication of GB9125477D0 publication Critical patent/GB9125477D0/en
Priority to PCT/GB1992/002168 priority patent/WO1993010964A1/en
Priority to CN 92114162 priority patent/CN1073386A/en
Publication of GB2261920A publication Critical patent/GB2261920A/en
Application granted granted Critical
Publication of GB2261920B publication Critical patent/GB2261920B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0053—Producing sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/18—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons grooved pins; Rolling grooves, e.g. oil grooves, in articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/08—Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/007—Forming single grooves or ribs, e.g. tear lines, weak spots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • 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
    • F16J15/44—Free-space packings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Forests & Forestry (AREA)
  • Sealing Devices (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
GB9125477A 1991-11-29 1991-11-29 A method of making a seal Expired - Fee Related GB2261920B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9125477A GB2261920B (en) 1991-11-29 1991-11-29 A method of making a seal
PCT/GB1992/002168 WO1993010964A1 (en) 1991-11-29 1992-11-24 A method of making a seal
CN 92114162 CN1073386A (en) 1991-11-29 1992-11-28 The method of processing sealing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9125477A GB2261920B (en) 1991-11-29 1991-11-29 A method of making a seal

Publications (3)

Publication Number Publication Date
GB9125477D0 GB9125477D0 (en) 1992-01-29
GB2261920A GB2261920A (en) 1993-06-02
GB2261920B true GB2261920B (en) 1995-04-26

Family

ID=10705481

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9125477A Expired - Fee Related GB2261920B (en) 1991-11-29 1991-11-29 A method of making a seal

Country Status (3)

Country Link
CN (1) CN1073386A (en)
GB (1) GB2261920B (en)
WO (1) WO1993010964A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6705617B2 (en) * 2001-11-28 2004-03-16 Federal-Mogul World Wide, Inc. Hydrodynamic seal and method of making the same
DE202005006553U1 (en) 2005-04-22 2005-07-14 Vr Dichtungen Gmbh Radial shaft seal comprises membrane and support ring with centering section on its outer rim which press-fits into seal mounting and has wedge-shaped support section on its inner rim

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1522722A (en) * 1975-02-04 1978-08-31 Federal Mogul Corp Method of making sealing elements
US4243235A (en) * 1979-07-02 1981-01-06 The Mather Company Composite polytetrafluoroethylene and elastomer lip seal
US4542573A (en) * 1984-09-28 1985-09-24 The Fluorocarbon Company Method of producing a hydrodynamic seal

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1988738A (en) * 1931-05-25 1935-01-22 Charles E Johnson Process of making piston rings
FR1421558A (en) * 1964-11-05 1965-12-17 New process for modifying the outer shape of a plastic object and the internal tensions in this object
US3735615A (en) * 1970-05-19 1973-05-29 J Shneider Method of making grooves on surface of articles and device for its realization
US3857156A (en) * 1973-12-19 1974-12-31 Federal Mogul Corp Method of making tetrafluoroethylene sealing elements with hydrodynamic action
DE2421936B2 (en) * 1974-05-07 1976-06-10 Speidel-Kunststoffwerk Kg, 7404 Ofterdingen PROCESS FOR JOINT-TO-JOINT JOINT OF THE EDGES OF SPATIAL CURVED SHELL ELEMENTS MADE OF GLASS FIBER REINFORCED PLASTIC AND DEVICE FOR THEM
US4385429A (en) * 1979-07-18 1983-05-31 Dynetics, Inc. Method of manufacturing a clutch plate
US4450614A (en) * 1982-02-19 1984-05-29 Microdot Inc. Method of making a polytetrafluoroethylene hydrodynamic seal
US5048382A (en) * 1989-08-23 1991-09-17 Mar Don Corporation Method for making elastomeric sealing device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1522722A (en) * 1975-02-04 1978-08-31 Federal Mogul Corp Method of making sealing elements
US4243235A (en) * 1979-07-02 1981-01-06 The Mather Company Composite polytetrafluoroethylene and elastomer lip seal
US4542573A (en) * 1984-09-28 1985-09-24 The Fluorocarbon Company Method of producing a hydrodynamic seal

Also Published As

Publication number Publication date
CN1073386A (en) 1993-06-23
WO1993010964A1 (en) 1993-06-10
GB2261920A (en) 1993-06-02
GB9125477D0 (en) 1992-01-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20001129