GB772690A - Improvements in or relating to check and foot valves - Google Patents

Improvements in or relating to check and foot valves

Info

Publication number
GB772690A
GB772690A GB7393/55A GB739355A GB772690A GB 772690 A GB772690 A GB 772690A GB 7393/55 A GB7393/55 A GB 7393/55A GB 739355 A GB739355 A GB 739355A GB 772690 A GB772690 A GB 772690A
Authority
GB
United Kingdom
Prior art keywords
flap
pin
check
march
secured
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
GB7393/55A
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.)
AMES IRRIGATION Pty Ltd
Original Assignee
AMES IRRIGATION Pty 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 AMES IRRIGATION Pty Ltd filed Critical AMES IRRIGATION Pty Ltd
Publication of GB772690A publication Critical patent/GB772690A/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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/007—Preventing loss of prime, siphon breakers
    • F04D9/008—Preventing loss of prime, siphon breakers by means in the suction mouth, e.g. foot valves
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1037—Flap valves
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • F16K15/033—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member spring-loaded

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Abstract

772,690. Valves. AMES IRRIGATION PTY., Ltd. March 14, 1955 [March 12, 1954], No. 7393/55. Class 135. A check or foot valve comprises a flap C loaded by toggle levers F, F<SP>1</SP> and a spring G in such manner that the maximum closing force is exerted when the flap is in the closed position and the minimum force when the flap is in the fully open position. The flap has a rubber facing 13 which seats on the inturned end of the upstream pipe B. Pivoting means for the flap consists of a pin 17 carried by a mounting bracket M secured to the valve casing A and a bracket D secured to the flap and provided with elongated apertures 28 surrounding the pivot pin. Spring means G comprises two parallel springs anchored at their ends around the pin 17 and a pin 29 constituting the knee joint of the toggle levers.
GB7393/55A 1954-03-12 1955-03-14 Improvements in or relating to check and foot valves Expired GB772690A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US772690XA 1954-03-12 1954-03-12

Publications (1)

Publication Number Publication Date
GB772690A true GB772690A (en) 1957-04-17

Family

ID=22137087

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7393/55A Expired GB772690A (en) 1954-03-12 1955-03-14 Improvements in or relating to check and foot valves

Country Status (1)

Country Link
GB (1) GB772690A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155151A (en) * 1984-01-13 1985-09-18 Hoerbiger Ventilwerke Ag A device for regulating the delivery of rotary compressors
GB2405165A (en) * 2003-08-18 2005-02-23 Halliburton Energy Serv Inc Safety valve having extension spring closure mechanism
US7597149B2 (en) 2004-12-03 2009-10-06 Halliburton Energy Services, Inc. Safety valve with extension springs
US7798229B2 (en) 2005-01-24 2010-09-21 Halliburton Energy Services, Inc. Dual flapper safety valve
US8479826B2 (en) 2011-10-20 2013-07-09 Halliburton Energy Services, Inc. Protection of a safety valve in a subterranean well

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155151A (en) * 1984-01-13 1985-09-18 Hoerbiger Ventilwerke Ag A device for regulating the delivery of rotary compressors
GB2405165A (en) * 2003-08-18 2005-02-23 Halliburton Energy Serv Inc Safety valve having extension spring closure mechanism
US7021386B2 (en) 2003-08-18 2006-04-04 Halliburton Energy Services, Inc. Safety valve having extension spring closure mechanism
GB2405165B (en) * 2003-08-18 2007-03-07 Halliburton Energy Serv Inc Safety valve having extension spring closure mechanism
US7597149B2 (en) 2004-12-03 2009-10-06 Halliburton Energy Services, Inc. Safety valve with extension springs
US7798229B2 (en) 2005-01-24 2010-09-21 Halliburton Energy Services, Inc. Dual flapper safety valve
US8047294B2 (en) 2005-01-24 2011-11-01 Halliburton Energy Services, Inc. Dual flapper safety valve
US8479826B2 (en) 2011-10-20 2013-07-09 Halliburton Energy Services, Inc. Protection of a safety valve in a subterranean well
US10094199B2 (en) 2011-10-20 2018-10-09 Halliburton Energy Services, Inc. Protection of a safety valve in a subterranean well

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