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GB805811A - Improvements in thermally-operable electric switches - Google Patents

Improvements in thermally-operable electric switches

Info

Publication number
GB805811A
GB805811A GB15403/57A GB1540357A GB805811A GB 805811 A GB805811 A GB 805811A GB 15403/57 A GB15403/57 A GB 15403/57A GB 1540357 A GB1540357 A GB 1540357A GB 805811 A GB805811 A GB 805811A
Authority
GB
United Kingdom
Prior art keywords
spring
thermally
electric switches
blades
operable electric
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
GB15403/57A
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.)
Motors Liquidation Co
Original Assignee
General Motors Corp
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 General Motors Corp filed Critical General Motors Corp
Publication of GB805811A publication Critical patent/GB805811A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/18—Energy stored by deformation of elastic members by flexing of blade springs

Landscapes

  • Thermally Actuated Switches (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

805,811. Thermal switches. GENERAL MOTORS CORPORATION. May 15, 1957 [Jan. 4, 1956], No. 15403/57. Addition to 760,784. Class 38 (5). The toggle spring of the parent Specification is modified by providing it with diverging ends 123, 125 which react with the ends 82, 84 of spring blades 70, 72 so a to urge the toggle spring 121 upwards. Such movement is prevented by lugs 133 on the spring 121 which engage below lugs 127, 129 on the ends of blades 70, 72. A cam 151 on the biasing-spring housing 44 engages a cam surface 149 on an insulating member 141 resiliently carried by the spring 72.
GB15403/57A 1956-06-04 1957-05-15 Improvements in thermally-operable electric switches Expired GB805811A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US805811XA 1956-06-04 1956-06-04

Publications (1)

Publication Number Publication Date
GB805811A true GB805811A (en) 1958-12-10

Family

ID=22158288

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15403/57A Expired GB805811A (en) 1956-06-04 1957-05-15 Improvements in thermally-operable electric switches

Country Status (1)

Country Link
GB (1) GB805811A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1858040A1 (en) * 2005-02-23 2007-11-21 Yamatake Corporation Snap action mechanism and pressure switch employing it

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1858040A1 (en) * 2005-02-23 2007-11-21 Yamatake Corporation Snap action mechanism and pressure switch employing it
EP1858040A4 (en) * 2005-02-23 2011-05-04 Yamatake Corp FAST ACTING MECHANISM AND PRESSURE SWITCH USING THE SAME

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