GB1303986A - - Google Patents

Info

Publication number
GB1303986A
GB1303986A GB1303986DA GB1303986A GB 1303986 A GB1303986 A GB 1303986A GB 1303986D A GB1303986D A GB 1303986DA GB 1303986 A GB1303986 A GB 1303986A
Authority
GB
United Kingdom
Prior art keywords
rollers
valve
band
valves
aperture
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
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 filed Critical
Publication of GB1303986A publication Critical patent/GB1303986A/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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/18—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with diaphragm secured at one side only, e.g. to be laid on the seat by rolling action

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

1303986 Valves NATIONAL RESEARCH DEVELOPMENT CORP 29 Jan 1970 [29 Oct 1968] 51262/68 Heading F2V A fluid control valve comprises a pair of rollers 2, 3 trapped between two opposed wall portions of the valve housing 1 by a band of impervious material 4 which is wrapped around the rollers in an "S" configuration, the rollers being movable between two positions, one of which the band covers an aperture a, and the other in which aperture a is uncovered. The roller 7 is connected to an operating lever (5), (Fig. 1, not shown) which extends through a deformable seal in the housing 1. Slight angular movement of the lever (5) operates the valve. Two such valves may be coupled together to cover and uncover respective outlet apertures a in a mutual antiphase manner, to form a 3- port device. In this arrangement the inlets b are connected to a common source of fluid pressure and a dead-zone is provided in which both apertures, in one position of the valve, are closed. The band is preferably tensioned and made of a thin metal (e.g. stainless steel) or plastics strip. Copending Application No. 51264/68 is referred to.
GB1303986D 1968-10-29 1968-10-29 Expired GB1303986A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5126268 1968-10-29

Publications (1)

Publication Number Publication Date
GB1303986A true GB1303986A (en) 1973-01-24

Family

ID=10459304

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1303986D Expired GB1303986A (en) 1968-10-29 1968-10-29

Country Status (1)

Country Link
GB (1) GB1303986A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215817A (en) * 1988-02-10 1989-09-27 Solex Electrically operated rotary valve and feed device for an engine making use thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215817A (en) * 1988-02-10 1989-09-27 Solex Electrically operated rotary valve and feed device for an engine making use thereof
GB2215817B (en) * 1988-02-10 1992-03-18 Solex Electrically operated valve and feed device for engine making use thereof

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees