GB1322205A - Low pressure switches - Google Patents

Low pressure switches

Info

Publication number
GB1322205A
GB1322205A GB5246270A GB1322205DA GB1322205A GB 1322205 A GB1322205 A GB 1322205A GB 5246270 A GB5246270 A GB 5246270A GB 1322205D A GB1322205D A GB 1322205DA GB 1322205 A GB1322205 A GB 1322205A
Authority
GB
United Kingdom
Prior art keywords
plunger
switch
body portion
retainer
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
GB5246270A
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.)
Wabco Automotive UK Ltd
Original Assignee
Clayton Dewandre Co 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 Clayton Dewandre Co Ltd filed Critical Clayton Dewandre Co Ltd
Publication of GB1322205A publication Critical patent/GB1322205A/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
    • H01H35/38—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by piston and cylinder

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Push-Button Switches (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

1322205 Fluid actuation of switches CLAYTON DEWANDRE CO Ltd 12 Oct 1971 [4 Nov 1970] 52462/70 Heading H1N A fluid pressure operated switch comprises a snap-action micro-switch 2 mounted on a body portion 1 with its actuating pin 3 extending into the body, an axially movable plunger 7 abutting the pin 3, the other end of the plunger forming a piston 8 in a bore in a second body portion 4 and a loading spring 13 between the body 1 and a spring retainer 11 adjustably threaded on the central portion of the plunger. Flanges on the edges of the retainer engage axial grooves 12 and the plunger is prevented from rotating by for example a stud 9 locating in a groove 10. The loading of the plunger is varied by rotating the body portion 4 and therefore the plunger with respect to the body portion 1, and the retainer 11 engaged therewithin, An 0-ring 15 seals the piston and the bore to prevent pressured fluid from entering the switch body whilst seal 16 keeps dust &c. out of the body. Diametrically placed bolts 14 secure the body 4 to body 1. In operation the fluid pressure holds the actuating pin depressed so that the switch is open circuit. If the pressure drops below that required to compress the spring the switch is allowed to close.
GB5246270A 1970-11-04 1970-11-04 Low pressure switches Expired GB1322205A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5246270 1970-11-04

Publications (1)

Publication Number Publication Date
GB1322205A true GB1322205A (en) 1973-07-04

Family

ID=10464000

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5246270A Expired GB1322205A (en) 1970-11-04 1970-11-04 Low pressure switches

Country Status (4)

Country Link
DE (1) DE2153504B2 (en)
ES (1) ES396605A1 (en)
GB (1) GB1322205A (en)
ZA (1) ZA716923B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3605388C2 (en) * 1985-12-03 1995-08-03 Teves Gmbh Alfred Electro-hydraulic switching device

Also Published As

Publication number Publication date
ZA716923B (en) 1972-08-30
ES396605A1 (en) 1974-05-16
DE2153504A1 (en) 1972-06-08
DE2153504B2 (en) 1975-11-20

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years