GB1431752A - Diaphragms - Google Patents

Diaphragms

Info

Publication number
GB1431752A
GB1431752A GB2080672A GB2080672A GB1431752A GB 1431752 A GB1431752 A GB 1431752A GB 2080672 A GB2080672 A GB 2080672A GB 2080672 A GB2080672 A GB 2080672A GB 1431752 A GB1431752 A GB 1431752A
Authority
GB
United Kingdom
Prior art keywords
segments
diaphragm
polymers
polymer
copolymer
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
GB2080672A
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.)
Dunlop Ltd
Original Assignee
Dunlop 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 Dunlop Ltd filed Critical Dunlop Ltd
Priority to GB2080672A priority Critical patent/GB1431752A/en
Priority to AU55107/73A priority patent/AU5510773A/en
Priority to ES414356A priority patent/ES414356A1/en
Priority to IT2368573A priority patent/IT1006576B/en
Priority to FR7316151A priority patent/FR2183266B1/fr
Priority to JP5019973A priority patent/JPS4967066A/ja
Priority to DE19732322605 priority patent/DE2322605A1/en
Publication of GB1431752A publication Critical patent/GB1431752A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring
    • B60G15/12—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/08—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall
    • F16F9/081—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall being of the fluid displacement type, i.e. the piston not comprising damping arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Diaphragms And Bellows (AREA)
  • Fluid-Damping Devices (AREA)
  • Laminated Bodies (AREA)
  • Springs (AREA)

Abstract

1431752 Diaphragms in fluid springs and dampers DUNLOP Ltd 24 April 1973 [4 May 1972 13 Oct 1972] 20806/72 and 47345/72 Heading F2S A rolling lobe diaphragm 1 for a fluid spring or damper is made of a linear block copolymer (i.e. a copolymer in which the constituent polymers are present). The diaphragm needs no fabric reinforcement (except possibly in the bead area) or liner. Desirable physical properties (Young's modulus, elongation at yield, and flexural fatigue-resistance) are specified. The copolymer preferably has "soft" amorphous segments of one of the polymers interspersed with "hard" crystalline segments of another of the polymers. The "soft" polymer segments may be a polyether, a polyester, a hydrocarbon polymer &c. (examples of which are given). The "hard" polymer segments may be polyester, polyamide, polyurethane &c. (examples of which are given). The diaphragm is preferably injection-moulded from a thermoplastic linear block copolymer of 35 parts polytetrahydrofuran and 65 parts of a mixed polymer based on poly-(butyleneterephthalate).
GB2080672A 1972-05-04 1972-05-04 Diaphragms Expired GB1431752A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB2080672A GB1431752A (en) 1972-05-04 1972-05-04 Diaphragms
AU55107/73A AU5510773A (en) 1972-05-04 1973-05-02 Diaphragms
ES414356A ES414356A1 (en) 1972-05-04 1973-05-03 Diaphragms
IT2368573A IT1006576B (en) 1972-05-04 1973-05-03 IMPROVEMENT IN THE DIAPHRAGMS IN PARTICULAR IN THE DIAPHRAGMS OF 24 APRIL 1973 AND N 47345 FOR VEHICLES
FR7316151A FR2183266B1 (en) 1972-05-04 1973-05-04
JP5019973A JPS4967066A (en) 1972-05-04 1973-05-04
DE19732322605 DE2322605A1 (en) 1972-05-04 1973-05-04 MEMBRANE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2080672A GB1431752A (en) 1972-05-04 1972-05-04 Diaphragms
GB4734572 1972-10-13

Publications (1)

Publication Number Publication Date
GB1431752A true GB1431752A (en) 1976-04-14

Family

ID=26254911

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2080672A Expired GB1431752A (en) 1972-05-04 1972-05-04 Diaphragms

Country Status (7)

Country Link
JP (1) JPS4967066A (en)
AU (1) AU5510773A (en)
DE (1) DE2322605A1 (en)
ES (1) ES414356A1 (en)
FR (1) FR2183266B1 (en)
GB (1) GB1431752A (en)
IT (1) IT1006576B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS203209B1 (en) * 1978-10-20 1981-02-27 Alfonz Moravcik Method of coating the glazes on the ceramic materials in electric field
DE3044616C2 (en) * 1980-11-27 1982-09-30 Integral Hydraulik & Co, 4000 Düsseldorf Hydro-pneumatic chain tensioning unit for caterpillar vehicles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1517653A (en) * 1959-06-09 1968-03-22 Brevets J A Gregoire Soc D Improvements to vehicle suspension
GB1044551A (en) * 1963-01-19 1966-10-05 Rubber Plastics Ltd Improvements in and relating to rolling diaphragms
US3319532A (en) * 1963-08-12 1967-05-16 Robertshaw Controls Co Bellows actuator

Also Published As

Publication number Publication date
JPS4967066A (en) 1974-06-28
FR2183266A1 (en) 1973-12-14
AU5510773A (en) 1974-11-07
FR2183266B1 (en) 1976-09-10
DE2322605A1 (en) 1973-11-15
ES414356A1 (en) 1976-07-01
IT1006576B (en) 1976-10-20

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Legal Events

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