GB1453612A - Differential pressure switch arrangements - Google Patents

Differential pressure switch arrangements

Info

Publication number
GB1453612A
GB1453612A GB335873A GB335873A GB1453612A GB 1453612 A GB1453612 A GB 1453612A GB 335873 A GB335873 A GB 335873A GB 335873 A GB335873 A GB 335873A GB 1453612 A GB1453612 A GB 1453612A
Authority
GB
United Kingdom
Prior art keywords
plunger
cylindrical member
actuator
switch
casing
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
GB335873A
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.)
GARDOM AND LOCK Ltd
Original Assignee
GARDOM AND LOCK 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 GARDOM AND LOCK Ltd filed Critical GARDOM AND LOCK Ltd
Priority to GB335873A priority Critical patent/GB1453612A/en
Priority to AU53904/73A priority patent/AU5390473A/en
Priority to ES415504A priority patent/ES415504A1/en
Publication of GB1453612A publication Critical patent/GB1453612A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1453612 Fluid actuation of switches GARDOM & LOCK Ltd 21 Jan 1974 [23 Jan 1973] 3358/73 Heading H1N A differential pressure switch arrangement comprises a switch 10 and an actuator 11, wherein the actuator comprises a diaphragm 17, peripherally clamped by casing 13, 14 to provide two compartments 15, 16, pressure ducts 34, 35, an actuator plunger 25 and sealing means 28; wherein the plunger 25 extends from a central part of diaphragm 17 across one of the compartments 16, through a resilient cylindrical member of the sealing means and through a way provided in an end wall 26 to make operational contact with the switch 10; wherein one part of the cylindrical member 28 is disposed in said one compartment 16 and is constrained to move with the plunger 25; and wherein another part of cylindrical member 28 sealingly engages the casing to prevent leakage through said way. Bias is provided by a spring 23 and a thrust member 24 whose area is larger than that of the end of the plunger. Stop 33 is adjustable to move microswitch 10 for calibration. The cylindrical member 28 embraces the plunger 25 and also a projection 27 of the casing such that pressure in the compartment improves the seal. A further switch with actuator plunger and sealing means in the other compartment 15 may be provided for operation by a pressure differential in the opposite sense.
GB335873A 1973-01-23 1973-01-23 Differential pressure switch arrangements Expired GB1453612A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB335873A GB1453612A (en) 1973-01-23 1973-01-23 Differential pressure switch arrangements
AU53904/73A AU5390473A (en) 1973-01-23 1973-03-29 Switch arrangements
ES415504A ES415504A1 (en) 1973-01-23 1973-06-02 Differential pressure switch arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB335873A GB1453612A (en) 1973-01-23 1973-01-23 Differential pressure switch arrangements

Publications (1)

Publication Number Publication Date
GB1453612A true GB1453612A (en) 1976-10-27

Family

ID=9756811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB335873A Expired GB1453612A (en) 1973-01-23 1973-01-23 Differential pressure switch arrangements

Country Status (3)

Country Link
AU (1) AU5390473A (en)
ES (1) ES415504A1 (en)
GB (1) GB1453612A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141585A (en) * 1982-12-03 1984-12-19 John Roger Bernard Pressure switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141585A (en) * 1982-12-03 1984-12-19 John Roger Bernard Pressure switch

Also Published As

Publication number Publication date
ES415504A1 (en) 1976-02-16
AU5390473A (en) 1974-10-03

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed