GB1291579A - Improvements in electric switches - Google Patents

Improvements in electric switches

Info

Publication number
GB1291579A
GB1291579A GB5065869A GB5065869A GB1291579A GB 1291579 A GB1291579 A GB 1291579A GB 5065869 A GB5065869 A GB 5065869A GB 5065869 A GB5065869 A GB 5065869A GB 1291579 A GB1291579 A GB 1291579A
Authority
GB
United Kingdom
Prior art keywords
venturi
contact units
pipe
electric switches
ligaments
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
GB5065869A
Inventor
Arthur Thilo
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.)
THERMAL ELECTRONICS Ltd
Original Assignee
THERMAL ELECTRONICS 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 THERMAL ELECTRONICS Ltd filed Critical THERMAL ELECTRONICS Ltd
Priority to GB5065869A priority Critical patent/GB1291579A/en
Publication of GB1291579A publication Critical patent/GB1291579A/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
    • H01H35/40—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by devices allowing continual flow of fluid, e.g. vane
    • H01H35/405—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by devices allowing continual flow of fluid, e.g. vane the switch being of the reed switch type

Abstract

1291579 Magnetic switches THERMAL ELECTRONICS Ltd 14 Jan 1971 [15 Got 1969] 50658/69 Heading H1N A fluid flow switch has a Venturi 20 which fits over an inlet pipe 19 and is movable away therefrom by liquid flowing from the pipe and a permanent magnet 27 mounted on the Venturi is arranged to influence alternative magnetic reed contact units 25 in the two extreme positions of the Venturi. The Venturi is mounted on a lever 21 pivotally mounted by means of cross-ligaments 22 which are not influenced by foreign matter and the contact units are mounted in a separate chamber 17.
GB5065869A 1969-10-15 1969-10-15 Improvements in electric switches Expired GB1291579A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5065869A GB1291579A (en) 1969-10-15 1969-10-15 Improvements in electric switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5065869A GB1291579A (en) 1969-10-15 1969-10-15 Improvements in electric switches

Publications (1)

Publication Number Publication Date
GB1291579A true GB1291579A (en) 1972-10-04

Family

ID=10456833

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5065869A Expired GB1291579A (en) 1969-10-15 1969-10-15 Improvements in electric switches

Country Status (1)

Country Link
GB (1) GB1291579A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4831350A (en) * 1987-11-30 1989-05-16 Proximity Controls, Inc. Rotary shaft position reed switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4831350A (en) * 1987-11-30 1989-05-16 Proximity Controls, Inc. Rotary shaft position reed switch

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees