GB1376714A - Check valves - Google Patents

Check valves

Info

Publication number
GB1376714A
GB1376714A GB3324473A GB3324473A GB1376714A GB 1376714 A GB1376714 A GB 1376714A GB 3324473 A GB3324473 A GB 3324473A GB 3324473 A GB3324473 A GB 3324473A GB 1376714 A GB1376714 A GB 1376714A
Authority
GB
United Kingdom
Prior art keywords
closure member
roller
july
plastics
spring
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
GB3324473A
Other languages
English (en)
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.)
Hersey Products Inc
Original Assignee
Hersey Products Inc
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 Hersey Products Inc filed Critical Hersey Products Inc
Publication of GB1376714A publication Critical patent/GB1376714A/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
    • 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
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/24—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with valve members that, on opening of the valve, are initially lifted from the seat and next are turned around an axis parallel to the seat
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/52—Mechanical actuating means with crank, eccentric, or cam
    • F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
    • F16K31/52408—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve
    • F16K31/52441—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve with a pivoted disc or flap
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7898—Pivoted valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7907—Varying effective lever arm

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Mechanically-Actuated Valves (AREA)
GB3324473A 1972-07-13 1973-07-12 Check valves Expired GB1376714A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27162572A 1972-07-13 1972-07-13

Publications (1)

Publication Number Publication Date
GB1376714A true GB1376714A (en) 1974-12-11

Family

ID=23036368

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3324473A Expired GB1376714A (en) 1972-07-13 1973-07-12 Check valves

Country Status (5)

Country Link
US (1) US3789874A (enExample)
JP (1) JPS5123732B2 (enExample)
CA (1) CA978831A (enExample)
DE (1) DE2335724A1 (enExample)
GB (1) GB1376714A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125402A (en) * 1985-11-15 1992-06-30 National Research Development Corporation Powered respirators
GB2360080A (en) * 2000-01-31 2001-09-12 World Electric Company Srl Safety valve for a steam generator

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207816A (en) * 1976-07-29 1980-06-17 Kabushiki Kaisha Sato Kenkyusho Constant printing pressure mechanisms for label printing machine
US4856547A (en) * 1989-02-03 1989-08-15 Alberto Solaroli Pressure relief valve
US4989635A (en) * 1989-11-13 1991-02-05 Cmb Industries, Inc. Check valve with reduced hold-open pressure
US5226441A (en) * 1989-11-13 1993-07-13 Cmb Industries Backflow preventor with adjustable outflow direction
US5107888A (en) * 1989-11-13 1992-04-28 Cmb Industries, Inc. N-shaped backflow preventor
US5046525A (en) * 1990-06-15 1991-09-10 Ames Company, Inc. Differential loading fluid check valve
US5146949A (en) * 1991-01-04 1992-09-15 The Viking Corporation Check valve with spring loaded clapper assembly
US5072753A (en) * 1991-01-22 1991-12-17 Watts Regulator Company Toggle linkage check valve
US5236009A (en) * 1991-01-22 1993-08-17 Watts Investment Company Double check backflow preventer with improved toggle linkage check valve
US5176172A (en) * 1991-01-22 1993-01-05 Watts Regulator Company Toggle linkage check valve
US5855224A (en) * 1996-07-11 1999-01-05 Watts Investment Company Flapper check valve
US5711341A (en) * 1997-02-25 1998-01-27 Conbraco Industries, Inc. Swing-type check valve assembly retained within a valve housing by abutting engagement with a valve cover and a port of the valve housing
US5794655A (en) * 1997-02-25 1998-08-18 Conbraco Industries, Inc. Swing-type check valve assembly having an integrated valve seat and valve housing cover
US6648013B1 (en) * 2001-06-20 2003-11-18 Watts Industries, Inc. Check valve having variable opening-force threshold
US20040045604A1 (en) * 2001-09-25 2004-03-11 Dunmire Charles W. Backflow preventor with adjustable outflow direction
US6694996B2 (en) * 2002-03-11 2004-02-24 Conbraco Industries, Inc. Swing check backflow preventor having check valve with lever arm
US7434593B2 (en) * 2002-10-23 2008-10-14 Zurn Industries, Llc Double check valve assembly
US7784483B2 (en) * 2005-01-21 2010-08-31 Zurn Industries, Llc Backflow preventer
US20060266422A1 (en) * 2005-05-26 2006-11-30 Feenstra Shawn J Check valve with an improved clapper and valve seat
US7533693B2 (en) * 2005-10-31 2009-05-19 Ga Industries, Llc Side-mounted position indicator for flapper check valve
EP2380845A1 (en) * 2009-01-23 2011-10-26 BT Products AB A mast structure for an industrial lift truck
US20130206256A1 (en) * 2011-11-10 2013-08-15 Bray International, Inc. Biased swing check valve
NO2734508T3 (enExample) * 2014-11-26 2018-07-28
JP6812195B2 (ja) * 2016-10-12 2021-01-13 株式会社パイオラックス フラップ弁装置
CN108916433A (zh) * 2018-06-12 2018-11-30 上海东软医疗科技有限公司 泄压装置
US11852256B2 (en) * 2020-03-11 2023-12-26 Ockerman Automation Consulting, Inc. Flush-mount valve
MX2022011302A (es) * 2020-03-12 2022-10-07 Coil Solutions Inc Aparato y metodo para la activacion de valvula de retencion de charnela.
US11879557B1 (en) * 2022-08-26 2024-01-23 Spm Oil & Gas Inc. Clapper check valve assembly
US12292123B2 (en) * 2022-09-16 2025-05-06 Acorn Engineering Company, Inc. Clapper with an upstream cam-arm and roller arrangement

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US980188A (en) * 1907-03-21 1911-01-03 Albert Blauvelt Detector-meter.
US3334858A (en) * 1964-07-02 1967-08-08 Robert B Hay Swinging disc valves with supplemental operator
US3478778A (en) * 1967-05-25 1969-11-18 Hersey Sparling Meter Co Clapper valve with changing bias

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125402A (en) * 1985-11-15 1992-06-30 National Research Development Corporation Powered respirators
GB2360080A (en) * 2000-01-31 2001-09-12 World Electric Company Srl Safety valve for a steam generator
GB2360080B (en) * 2000-01-31 2004-03-24 World Electric Company Srl Safety valve for steam generator

Also Published As

Publication number Publication date
CA978831A (en) 1975-12-02
JPS4958427A (enExample) 1974-06-06
JPS5123732B2 (enExample) 1976-07-19
US3789874A (en) 1974-02-05
DE2335724A1 (de) 1974-01-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee