GB891987A - Improvements in thermally-operated electric flasher device - Google Patents

Improvements in thermally-operated electric flasher device

Info

Publication number
GB891987A
GB891987A GB15222/59A GB1522259A GB891987A GB 891987 A GB891987 A GB 891987A GB 15222/59 A GB15222/59 A GB 15222/59A GB 1522259 A GB1522259 A GB 1522259A GB 891987 A GB891987 A GB 891987A
Authority
GB
United Kingdom
Prior art keywords
strip
contact
rivet
spring
attached
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
GB15222/59A
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.)
Signal Stat Corp
Original Assignee
Signal Stat 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 Signal Stat Corp filed Critical Signal Stat Corp
Publication of GB891987A publication Critical patent/GB891987A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/64—Contacts
    • H01H37/66—Magnetic reinforcement of contact pressure; Magnet causing snap action
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/46—Thermally-sensitive members actuated due to expansion or contraction of a solid
    • H01H37/48—Thermally-sensitive members actuated due to expansion or contraction of a solid with extensible rigid rods or tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/06—Self-interrupters, i.e. with periodic or other repetitive opening and closing of contacts

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

891,987. Thermal switches. SIGNAL-STAT CORPORATION. May 4, 1959 [May 12, 1958], No. 15222/59. Class 38 (5). [Also in Group XXXVIII]. A flasher for use in motor vehicles (see Group XXXVIII) comprises an insulating base 11 having prong terminals 14 and 16 secured by rivets 12 and 13. The rivet 12 carries a bimetal strip 20 having a magnetic strip 25 extending from its free end with a contact 21 thereon to co-operate with a relatively fixed contact 22 carried on a spring 23 attached to rivet 13. A rigid bar 24 overlies most of spring 23, and a permanent magnet 30 is mounted in or on base 11 under the strip 25 to hold contacts 21, 22 normally closed. Current flowing through strip 20 heats it and eventually the strip 25 is forced away from magnet 30 to open contacts 21, 22 with a snap action, the contact 22 being restrained by spring 23 engaging the bar 24. In a modification (Figs. 5 to 8, not shown), the contact 22 is mounted directly on rivet 13 and the magnetic strip 25 is attached to strip 20 at an angle to bring contact 21 over contact 22.
GB15222/59A 1958-05-12 1959-05-04 Improvements in thermally-operated electric flasher device Expired GB891987A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US734471A US2900474A (en) 1958-05-12 1958-05-12 Flasher

Publications (1)

Publication Number Publication Date
GB891987A true GB891987A (en) 1962-03-21

Family

ID=24951823

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15222/59A Expired GB891987A (en) 1958-05-12 1959-05-04 Improvements in thermally-operated electric flasher device

Country Status (3)

Country Link
US (1) US2900474A (en)
FR (1) FR1223881A (en)
GB (1) GB891987A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041424A (en) * 1959-07-17 1962-06-26 Signal Stat Corp Magnetomotive and thermomotive flasher
US3290630A (en) * 1964-05-11 1966-12-06 Thompson Ind Inc Flasher switch employing a permanent magnet and a switch blade composed of a curie point material
US3416109A (en) * 1965-12-08 1968-12-10 Shepard Co Lewis Delayed action switching device
JPS5043732Y2 (en) * 1971-01-19 1975-12-13

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1849280A (en) * 1928-03-02 1932-03-15 Ohio Brass Co Automatic starter for electric motors
US1981934A (en) * 1932-09-03 1934-11-27 Gen Motors Corp Thermostatic switch
US2067745A (en) * 1934-05-12 1937-01-12 Walter W Williams Room thermostat
US2300092A (en) * 1939-10-11 1942-10-27 Ruben Samuel Weather compensating temperature control device
US2434909A (en) * 1945-01-24 1948-01-27 Bell Telephone Labor Inc Circuit maker and breaker
US2491088A (en) * 1945-09-29 1949-12-13 Essex Wire Corp Thermal-magnetic circuit breaker

Also Published As

Publication number Publication date
US2900474A (en) 1959-08-18
FR1223881A (en) 1960-06-21

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