GB1242222A - Improvements in or relating to valves - Google Patents

Improvements in or relating to valves

Info

Publication number
GB1242222A
GB1242222A GB5242267A GB5242267A GB1242222A GB 1242222 A GB1242222 A GB 1242222A GB 5242267 A GB5242267 A GB 5242267A GB 5242267 A GB5242267 A GB 5242267A GB 1242222 A GB1242222 A GB 1242222A
Authority
GB
United Kingdom
Prior art keywords
central portion
axis
valve
tubular member
pinch member
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
GB5242267A
Inventor
Stewart Ives Ashworth
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.)
INTERNAT TECHNICAL SERVICES LT
Original Assignee
INTERNAT TECHNICAL SERVICES LT
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 INTERNAT TECHNICAL SERVICES LT filed Critical INTERNAT TECHNICAL SERVICES LT
Priority to GB5242267A priority Critical patent/GB1242222A/en
Priority to DE19681808766 priority patent/DE1808766A1/en
Priority to FR1591955D priority patent/FR1591955A/fr
Publication of GB1242222A publication Critical patent/GB1242222A/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
    • F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
    • F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
    • F16K7/06—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force by means of a screw-spindle, cam, or other mechanical means
    • F16K7/061—Screw clamps

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Valve Housings (AREA)

Abstract

1,242,222. Valves. INTERNATIONAL TECHNICAL SERVICES Ltd. 6 Nov., 1968 [17 Nov., 1967], No. 52422/67. Heading C2V. Within the chamber 11 of a flow control valve 10, there is disposed a moulded, elastomeric material tubular member 12 whose configuration is such that at each of its ends it has a cylindrical portion 24, between its ends a central portion whose axial extent is delimited by the arrow 14, and between each end portion and the central portion an intermediate portion the axial extents of which are delimited by arrows 17 and 20. In the absence of any forces acting on the tubular member 12, both the central portion and each of the intermediate portions has a somewhat flattened elliptical shape in a plane perpendicular to the valve rectilinear axis 43, with the major axes of such elipses lying perpendicularly to the plane of the drawing. As depicted in Figs. 3 and 5 (not shown), the shape of each intermediate portion varies along the axis 43, with the major axis increasing in length from the adjacent cylindrical portion towards the central portion and the minor axis simultaneously decreasing in the same direction. The valve is closable by a pinch member 30 which co-operates with a chamber wall 28 and is openable, upon the withdrawal of the pinch member, by fluid pressure acting on the central portion. In modifications, the valve axis 43 may be other than rectilinear, with the relationship between it and the changing configuration of the tubular member being made to correspond to that outlined above. The pinch member may be made of two synchronized parts and the pinch member operator handle 36 may be substituted by any mechanical equivalent or by a pneumatic jack.
GB5242267A 1967-11-17 1967-11-17 Improvements in or relating to valves Expired GB1242222A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB5242267A GB1242222A (en) 1967-11-17 1967-11-17 Improvements in or relating to valves
DE19681808766 DE1808766A1 (en) 1967-11-17 1968-11-14 Valve
FR1591955D FR1591955A (en) 1967-11-17 1968-11-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5242267A GB1242222A (en) 1967-11-17 1967-11-17 Improvements in or relating to valves

Publications (1)

Publication Number Publication Date
GB1242222A true GB1242222A (en) 1971-08-11

Family

ID=10463867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5242267A Expired GB1242222A (en) 1967-11-17 1967-11-17 Improvements in or relating to valves

Country Status (3)

Country Link
DE (1) DE1808766A1 (en)
FR (1) FR1591955A (en)
GB (1) GB1242222A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776558A (en) * 1985-03-04 1988-10-11 Guparo S.R.L. Flow regulator device for pipes made of elastically deformable material
US4960259A (en) * 1987-09-17 1990-10-02 Joka Kathetertechnik Gmbh Shut-off valve for a liquid flow line or infusion device
GB2231938A (en) * 1989-05-11 1990-11-28 Porter Lancastrian Ltd Pinch tap
WO2008073020A1 (en) * 2006-12-11 2008-06-19 Ge Healthcare Bio-Sciences Ab Pinch valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776558A (en) * 1985-03-04 1988-10-11 Guparo S.R.L. Flow regulator device for pipes made of elastically deformable material
US4960259A (en) * 1987-09-17 1990-10-02 Joka Kathetertechnik Gmbh Shut-off valve for a liquid flow line or infusion device
GB2231938A (en) * 1989-05-11 1990-11-28 Porter Lancastrian Ltd Pinch tap
WO2008073020A1 (en) * 2006-12-11 2008-06-19 Ge Healthcare Bio-Sciences Ab Pinch valve

Also Published As

Publication number Publication date
DE1808766A1 (en) 1969-08-21
FR1591955A (en) 1970-05-04

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