CA1025836A - Closing assist for valves - Google Patents

Closing assist for valves

Info

Publication number
CA1025836A
CA1025836A CA230,855A CA230855A CA1025836A CA 1025836 A CA1025836 A CA 1025836A CA 230855 A CA230855 A CA 230855A CA 1025836 A CA1025836 A CA 1025836A
Authority
CA
Canada
Prior art keywords
est
pile
chrome
positive
une
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
CA230,855A
Other languages
English (en)
French (fr)
Inventor
Norman F. Prescott
Herbert Cook
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.)
Atwood and Morrill Co Inc
Original Assignee
Atwood and Morrill Co 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 Atwood and Morrill Co Inc filed Critical Atwood and Morrill Co Inc
Application granted granted Critical
Publication of CA1025836A publication Critical patent/CA1025836A/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
    • F16K39/00—Devices for relieving the pressure on the sealing faces
    • F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
    • F16K39/024—Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve
    • 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
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1225—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston with a plurality of pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fluid-Pressure Circuits (AREA)
CA230,855A 1974-07-22 1975-07-04 Closing assist for valves Expired CA1025836A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49061674A 1974-07-22 1974-07-22

Publications (1)

Publication Number Publication Date
CA1025836A true CA1025836A (en) 1978-02-07

Family

ID=23948801

Family Applications (1)

Application Number Title Priority Date Filing Date
CA230,855A Expired CA1025836A (en) 1974-07-22 1975-07-04 Closing assist for valves

Country Status (8)

Country Link
JP (1) JPS5131924A (de)
CA (1) CA1025836A (de)
CH (1) CH591035A5 (de)
DE (1) DE2532651A1 (de)
ES (1) ES439653A1 (de)
FR (1) FR2280009A1 (de)
GB (1) GB1513779A (de)
IT (1) IT1044009B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2811879C2 (de) * 1978-03-18 1982-04-15 Carl Heinz Dipl.-Ing. 4050 Mönchengladbach Häfele Eigenmediumgesteuertes Schaltventil
CN101398099B (zh) * 2008-11-17 2010-12-08 浙江大农实业有限公司 压差式卸压阀
CN104676027A (zh) * 2015-01-29 2015-06-03 成都绿迪科技有限公司 一种液压平板阀
CN107387786B (zh) * 2017-03-02 2023-04-28 成都凯远流体控制工程有限公司 兼具良好密封性的多功能压力/流量控制阀及其操作方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1168720B (de) * 1961-09-20 1964-04-23 Ver Armaturen Gmbh Schlauchabsperrventil
US3182971A (en) * 1963-10-21 1965-05-11 St Regis Paper Co Homogenizing valve control
DE1550065B1 (de) * 1966-05-10 1970-10-15 Acf Ind Inc Einrichtung zur Steuerung der Be- und Entladung von entfernt von der Kueste an einer Boje od.dgl. anlegenden Tankschiffen
LU56736A1 (de) * 1968-08-19 1968-11-21
DE2011713A1 (de) * 1970-03-12 1971-09-30 Bosch Gmbh Robert Verstelleinrichtung fuer einen hydraulikkolben mit pulslaengenmodulierten steuersignalen
JPS498970A (de) * 1972-05-26 1974-01-26

Also Published As

Publication number Publication date
ES439653A1 (es) 1977-03-01
CH591035A5 (de) 1977-08-31
DE2532651C2 (de) 1987-09-10
FR2280009A1 (fr) 1976-02-20
DE2532651A1 (de) 1976-02-05
GB1513779A (en) 1978-06-07
JPS5131924A (ja) 1976-03-18
IT1044009B (it) 1980-02-29
JPS5429728B2 (de) 1979-09-26
FR2280009B1 (de) 1983-02-04

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