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GB2013287A - Seals - Google Patents

Seals

Info

Publication number
GB2013287A
GB2013287A GB7904252A GB7904252A GB2013287A GB 2013287 A GB2013287 A GB 2013287A GB 7904252 A GB7904252 A GB 7904252A GB 7904252 A GB7904252 A GB 7904252A GB 2013287 A GB2013287 A GB 2013287A
Authority
GB
United Kingdom
Prior art keywords
rims
seal
web
pump
compression
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.)
Granted
Application number
GB7904252A
Other versions
GB2013287B (en
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.)
Fluid Transfer Ltd
Original Assignee
Fluid Transfer 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 Fluid Transfer Ltd filed Critical Fluid Transfer Ltd
Priority to GB7904252A priority Critical patent/GB2013287B/en
Priority to DE19792906855 priority patent/DE2906855A1/en
Priority to FR7904702A priority patent/FR2418400A1/en
Priority to IT7920509A priority patent/IT1111834B/en
Publication of GB2013287A publication Critical patent/GB2013287A/en
Application granted granted Critical
Publication of GB2013287B publication Critical patent/GB2013287B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0018—Special features the periphery of the flexible member being not fixed to the pump-casing, but acting as a valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
    • 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
    • F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
    • F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
    • 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
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/02—Diaphragms

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Joints Allowing Movement (AREA)

Abstract

A flexible seal (2) comprises thickened inner and outer annular rims and a considerably thinner intermediate web integrally connected therewith. The seal has a pre- established configuration in which the rims are axially offset relative to each other so that the seal has a generally frusto-conical form. Curved section transition regions of comparable radial extent to the rims themselves blend into the rims and the web and provide a gradual change of section thickness therebetween. In one application the seal is mounted in a pump, being clamped by its rims between an axially reciprocating drive rod (22) and the pump housing (28). The seal is mounted under an initial radial compression such that in the operation of the pump its web is kept continuously in compression, or at most is subjected to tension in a small part of the reciprocating cycle. <IMAGE>
GB7904252A 1978-02-24 1979-02-07 Seals Expired GB2013287B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB7904252A GB2013287B (en) 1978-02-24 1979-02-07 Seals
DE19792906855 DE2906855A1 (en) 1978-02-24 1979-02-22 FLEXIBLE SEAL AND FASTENING DEVICE FOR IT
FR7904702A FR2418400A1 (en) 1978-02-24 1979-02-23 IMPROVEMENT WITH FLEXIBLE JOINTS
IT7920509A IT1111834B (en) 1978-02-24 1979-02-23 REFINEMENTS IN OR RELATED TO GASKETS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB756978 1978-02-24
GB7904252A GB2013287B (en) 1978-02-24 1979-02-07 Seals

Publications (2)

Publication Number Publication Date
GB2013287A true GB2013287A (en) 1979-08-08
GB2013287B GB2013287B (en) 1982-12-15

Family

ID=26241521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7904252A Expired GB2013287B (en) 1978-02-24 1979-02-07 Seals

Country Status (4)

Country Link
DE (1) DE2906855A1 (en)
FR (1) FR2418400A1 (en)
GB (1) GB2013287B (en)
IT (1) IT1111834B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999014495A1 (en) * 1997-09-17 1999-03-25 Alfa Laval Pumps Ltd. Double disc pump
US7559753B2 (en) 2004-09-27 2009-07-14 Penn Valley Pump Company, Inc. Double disc pump with fixed housing block
EP3401576A1 (en) * 2017-05-08 2018-11-14 Electrolux Appliances Aktiebolag Gasket and gas hob comprising a gasket
US12078155B2 (en) 2022-09-06 2024-09-03 Wastecorp Pumps Inc. Induced flow double disc pump assembly having rotating element

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3023658C2 (en) * 1980-06-25 1983-12-22 Busatis-Werke GmbH u. Co KG, 5630 Remscheid Sealing ring for swivel bearings and process for its manufacture

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE879496C (en) * 1943-05-15 1953-06-15 Auto Union A G Sealing for machine parts with limited vibrations
US2407792A (en) * 1945-02-05 1946-09-17 James O Mcmillan Diaphragm pump
GB867775A (en) * 1960-03-02 1961-05-10 Pulsator Ab Improvements in or relating to electrically-driven membrane-type pumps
GB1111153A (en) * 1963-09-12 1968-04-24 Selwood Ltd William R Improvements relating to reciprocating pumps for fluids
BE758665A (en) * 1969-03-07 1971-04-16 Demag Drucklufttech SEAL FOR THE ANNULAR SLOT OF A PERCUSSION TOOL
GB1549849A (en) * 1975-04-15 1979-08-08 Selwood Ltd W Pumps

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999014495A1 (en) * 1997-09-17 1999-03-25 Alfa Laval Pumps Ltd. Double disc pump
US6315532B1 (en) 1997-09-17 2001-11-13 Alfa Laval Pumps Ltd. Dual disc pump
US7559753B2 (en) 2004-09-27 2009-07-14 Penn Valley Pump Company, Inc. Double disc pump with fixed housing block
EP3401576A1 (en) * 2017-05-08 2018-11-14 Electrolux Appliances Aktiebolag Gasket and gas hob comprising a gasket
US12078155B2 (en) 2022-09-06 2024-09-03 Wastecorp Pumps Inc. Induced flow double disc pump assembly having rotating element

Also Published As

Publication number Publication date
FR2418400B3 (en) 1981-12-11
GB2013287B (en) 1982-12-15
IT7920509A0 (en) 1979-02-23
IT1111834B (en) 1986-01-13
DE2906855A1 (en) 1979-08-30
FR2418400A1 (en) 1979-09-21

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930207