GB1266904A - - Google Patents

Info

Publication number
GB1266904A
GB1266904A GB1266904DA GB1266904A GB 1266904 A GB1266904 A GB 1266904A GB 1266904D A GB1266904D A GB 1266904DA GB 1266904 A GB1266904 A GB 1266904A
Authority
GB
United Kingdom
Prior art keywords
bags
march
valves
assume
deflated
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 GB1266904A publication Critical patent/GB1266904A/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
    • F16K7/10—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with inflatable member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Check Valves (AREA)

Abstract

1,266,904. Valves. INSTITUTUL PENTRU PLANURI DE AMENAJARE SI CONSTRUCTII HIDROTEHNICE. 18 March, 1969 [18 March, 1968], No. 14289/69. Heading F2V. When deflated, a pair of flow control bags A, A assume the shape shown in Fig. 3 and lie within annular cavity c. Upon inflation of the bags by directing upstream fluid thereto via one of valves (12) and pipe 11, the bags assume the shapes shown in Figs. 4 and 6 and their faces interfit to prevent flow. Premature closure of valve (12) will maintain the bags in a partiallyinflated state. Deflation is controlled by vent valve 16. Each bag can be of fabric-reinforced rubber and is designed to experience no stretching during inflation; the end panels 2a-2d are shaped to allow folding in the deflated condition. The bags can have apertured internal strengthening walls and are bonded to the casing 4. A pressure gauge is provided at 17.
GB1266904D 1968-03-18 1969-03-18 Expired GB1266904A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO5617068 1968-03-18

Publications (1)

Publication Number Publication Date
GB1266904A true GB1266904A (en) 1972-03-15

Family

ID=20086661

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1266904D Expired GB1266904A (en) 1968-03-18 1969-03-18

Country Status (3)

Country Link
DE (1) DE1913571A1 (en)
FR (1) FR2004149A1 (en)
GB (1) GB1266904A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113124259A (en) * 2021-04-15 2021-07-16 濮阳市盛源能源科技股份有限公司 Blind stifled device of rubber circle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485690A1 (en) * 1980-06-27 1981-12-31 Oblastni Statni Melioracni Spr Expanding stopper for ground water control system - is expandable bag connectable to water distribution system to control water level

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113124259A (en) * 2021-04-15 2021-07-16 濮阳市盛源能源科技股份有限公司 Blind stifled device of rubber circle

Also Published As

Publication number Publication date
FR2004149A1 (en) 1969-11-21
DE1913571A1 (en) 1969-10-09

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Legal Events

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