GB1417399A - Control valves - Google Patents

Control valves

Info

Publication number
GB1417399A
GB1417399A GB1003172A GB1003172A GB1417399A GB 1417399 A GB1417399 A GB 1417399A GB 1003172 A GB1003172 A GB 1003172A GB 1003172 A GB1003172 A GB 1003172A GB 1417399 A GB1417399 A GB 1417399A
Authority
GB
United Kingdom
Prior art keywords
valve
burner
spring
balls
alight
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
GB1003172A
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.)
Hotpoint Ltd
Original Assignee
Hotpoint 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 Hotpoint Ltd filed Critical Hotpoint Ltd
Priority to GB1003172A priority Critical patent/GB1417399A/en
Priority to ZA731472A priority patent/ZA731472B/en
Publication of GB1417399A publication Critical patent/GB1417399A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q9/00—Pilot flame igniters
    • F23Q9/08—Pilot flame igniters with interlock with main fuel supply
    • F23Q9/12—Pilot flame igniters with interlock with main fuel supply to permit the supply to the main burner in dependence upon existence of pilot flame
    • F23Q9/14—Pilot flame igniters with interlock with main fuel supply to permit the supply to the main burner in dependence upon existence of pilot flame using electric means, e.g. by light-sensitive elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
    • F23N5/107—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples using mechanical means, e.g. safety valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

1417399 Valves HOTPOINT Ltd 2 March 1973 [3 March 1972] 10031/72 Heading F2V A valve for controlling the supply of gas to a burner has a valve head 4 locked in the open position by the engagement of balls 24 in a groove 31 when an electromagnet 29 is energized by a thermocouple when the burner is alight. The valve head, which includes a sealing ring 9 engaging a seat 11 in the closed position of the valve, is moved to the open position by depressing a spring loaded button 8. The button is held depressed until the burner is alight and the electromagnet energized. The valve head comprises a cup-shaped member 14 having a number of U-shaped slots in which the balls 24 are held captive by an annular plate 16, itself made captive by the turnedover heads of lugs 15. Within the valve head is held captive a tapered member 17 to the top of which is attached an annular ferromagnetic armature 19. A spring 23, located in a groove 22 of member 17, urges the sloping face 27 away from the plate 16 to permit the balls to ride up it when the valve is being opened. When the burner is alight and the button is released, the armature is held by the electromagnet but plate 16 moves under the influence of spring 13, which is stronger than spring 23, to force the balls outward to engage the groove and lock the valve in the open position. If the burner goes out and the electromagnet is deenergized, the armature is released and member 17 moves downwards under the influence of spring 23 permitting the balls to ride out of the groove as the head moves to close the valve under the influence of spring 13. The position of the button may be used as a visual indication that the valve is open and the burner is alight.
GB1003172A 1972-03-03 1972-03-03 Control valves Expired GB1417399A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1003172A GB1417399A (en) 1972-03-03 1972-03-03 Control valves
ZA731472A ZA731472B (en) 1972-03-03 1973-03-02 Improvements in or relating to control valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1003172A GB1417399A (en) 1972-03-03 1972-03-03 Control valves

Publications (1)

Publication Number Publication Date
GB1417399A true GB1417399A (en) 1975-12-10

Family

ID=9960181

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1003172A Expired GB1417399A (en) 1972-03-03 1972-03-03 Control valves

Country Status (2)

Country Link
GB (1) GB1417399A (en)
ZA (1) ZA731472B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999051902A1 (en) * 1998-04-06 1999-10-14 Conbraco Industries, Inc. Fluid supply shut off valve system and fluid monitoring device for use with same
US6823887B2 (en) 2001-02-08 2004-11-30 Lawrence M. Dulac Water heater shut off device with water pressure delay line

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6021808A (en) * 1998-01-21 2000-02-08 Dulac; Lawrence M. Fluid supply shut off valve system and fluid monitoring device for use with same
WO1999051902A1 (en) * 1998-04-06 1999-10-14 Conbraco Industries, Inc. Fluid supply shut off valve system and fluid monitoring device for use with same
US6823887B2 (en) 2001-02-08 2004-11-30 Lawrence M. Dulac Water heater shut off device with water pressure delay line

Also Published As

Publication number Publication date
ZA731472B (en) 1974-10-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee