GB1237295A - A gas cut-off valve - Google Patents

A gas cut-off valve

Info

Publication number
GB1237295A
GB1237295A GB1845669A GB1845669A GB1237295A GB 1237295 A GB1237295 A GB 1237295A GB 1845669 A GB1845669 A GB 1845669A GB 1845669 A GB1845669 A GB 1845669A GB 1237295 A GB1237295 A GB 1237295A
Authority
GB
United Kingdom
Prior art keywords
closure member
gas pressure
seat
valve
magnet
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
GB1845669A
Inventor
Gerrit Hendrik Van Leeuwen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1237295A publication Critical patent/GB1237295A/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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • F16K31/084—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet the magnet being used only as a holding element to maintain the valve in a specific position, e.g. check 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure

Landscapes

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

Abstract

1,237,295. Valves. G. H. VAN LEEUWEN. 10 April, 1969 [10 April, 1968], No. 18456/69. Heading F2V. The closure member 7 of a gas safety cut-off valve is urged by a permanent magnet into engagement with a seat B when the gas pressure drops below a given value, the magnetic force being such that the valve remains closed when the gas pressure is restored. In the illustrated embodiment, the gas pressure acts on a diaphragm 4 to hold the closure member away from its seat against the force of two permanent magnets 9, 10, a ring 11 of non ferro-magnetic material preventing excessive adhesion. The closure member slides on a tubular guide 13 and is reset through a lever 15 and a spring-loaded push button 16. Either magnet may be replaced by a soft iron ring. In a second embodiment, the diaphragm is made of ferro-magnetic material to serve as a closure member while the seat is formed by two concentric rings of plastic material on the lower magnet.
GB1845669A 1968-04-10 1969-04-10 A gas cut-off valve Expired GB1237295A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6805049A NL6805049A (en) 1968-04-10 1968-04-10

Publications (1)

Publication Number Publication Date
GB1237295A true GB1237295A (en) 1971-06-30

Family

ID=19803301

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1845669A Expired GB1237295A (en) 1968-04-10 1969-04-10 A gas cut-off valve

Country Status (2)

Country Link
GB (1) GB1237295A (en)
NL (1) NL6805049A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419445A1 (en) * 1978-03-10 1979-10-05 Santaella Lopez Jose Overpressure safety valve for gas bottle - is held open by permanent magnet with screw mechanism allowing manual adjustment
FR2526513A1 (en) * 1982-05-10 1983-11-10 Infusaid Corp MINIATURE VALVE ACTIONNEE MAGNETICALLY IMPLANTABLE UNDER THE SKIN
GB2129618A (en) * 1982-10-12 1984-05-16 Mitsubishi Electric Corp Pressure responsive device having an hysteresis characteristic
GB2172093A (en) * 1985-03-07 1986-09-10 Man Technologie Gmbh Valve
EP1695732A1 (en) * 2005-02-28 2006-08-30 Fisher & Paykel Healthcare Limited Pressure relief valve
CN111188930A (en) * 2020-01-20 2020-05-22 中国矿业大学 High-temperature high-pressure back pressure valve with adjustable precision and adjusting method thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419445A1 (en) * 1978-03-10 1979-10-05 Santaella Lopez Jose Overpressure safety valve for gas bottle - is held open by permanent magnet with screw mechanism allowing manual adjustment
FR2526513A1 (en) * 1982-05-10 1983-11-10 Infusaid Corp MINIATURE VALVE ACTIONNEE MAGNETICALLY IMPLANTABLE UNDER THE SKIN
US4541429A (en) * 1982-05-10 1985-09-17 Prosl Frank R Implantable magnetically-actuated valve
GB2129618A (en) * 1982-10-12 1984-05-16 Mitsubishi Electric Corp Pressure responsive device having an hysteresis characteristic
GB2172093A (en) * 1985-03-07 1986-09-10 Man Technologie Gmbh Valve
EP1695732A1 (en) * 2005-02-28 2006-08-30 Fisher & Paykel Healthcare Limited Pressure relief valve
AU2006200685B2 (en) * 2005-02-28 2011-09-29 Fisher & Paykel Healthcare Limited Pressure relief valve
CN111188930A (en) * 2020-01-20 2020-05-22 中国矿业大学 High-temperature high-pressure back pressure valve with adjustable precision and adjusting method thereof
CN111188930B (en) * 2020-01-20 2023-04-11 中国矿业大学 High-temperature high-pressure back pressure valve with adjustable precision and adjusting method thereof

Also Published As

Publication number Publication date
NL6805049A (en) 1969-10-14

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