TREA

based on the change of electrical properties

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  • CPC
  • H01H43/308
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Parent Industries

HELECTRICITY H01Electric elements H01HELECTRIC SWITCHES RELAYS SELECTORS EMERGENCY PROTECTIVE DEVICES H01H43/00Time or time-programme switches providing a choice of time intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed

Current Industry

H01H43/308based on the change of electrical properties
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Patents Grantslast 30 patents

  • Information Patent Grant

    Timing mechanism with a PTC thermistor
    • Patent number 5,214,310
    • Issue date May 25, 1993
    • Emerson Electric Co.
    • George W. Adams
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Timing mechanism with a PTC thermistor
    • Patent number 5,138,120
    • Issue date Aug 11, 1992
    • Emerson Electric Co.
    • George W. Adams
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Rapid turn-on, slow drop-out control arrangement
    • Patent number 4,724,504
    • Issue date Feb 9, 1988
    • Hamilton Standard Controls, Inc.
    • Robert E. Prouty
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    On-off switch with time delay
    • Patent number 3,943,375
    • Issue date Mar 9, 1976
    • GTE Sylvania Incorporated
    • David V. Williamson
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3916264
    • Patent number 3,916,264
    • Issue date Oct 28, 1975
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3821594
    • Patent number 3,821,594
    • Issue date Jun 28, 1974
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3731329
    • Patent number 3,731,329
    • Issue date May 8, 1973
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3505642
    • Patent number 3,505,642
    • Issue date Apr 7, 1970
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3486080
    • Patent number 3,486,080
    • Issue date Dec 23, 1969
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3457429
    • Patent number 3,457,429
    • Issue date Jul 22, 1969
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3338680
    • Patent number 3,338,680
    • Issue date Aug 29, 1967
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2932774
    • Patent number 2,932,774
    • Issue date Apr 12, 1960
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2890391
    • Patent number 2,890,391
    • Issue date Jun 9, 1959
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2815423
    • Patent number 2,815,423
    • Issue date Dec 3, 1957
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2567827
    • Patent number 2,567,827
    • Issue date Sep 11, 1951
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2482820
    • Patent number 2,482,820
    • Issue date Sep 27, 1949
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2471457
    • Patent number 2,471,457
    • Issue date May 31, 1949
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2304613
    • Patent number 2,304,613
    • Issue date Dec 8, 1942
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2240812
    • Patent number 2,240,812
    • Issue date May 6, 1941
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2160823
    • Patent number 2,160,823
    • Issue date Jun 6, 1939
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2005195
    • Patent number 2,005,195
    • Issue date Jun 18, 1935
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1927512
    • Patent number 1,927,512
    • Issue date Sep 19, 1933
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1550155
    • Patent number 1,550,155
    • Issue date Aug 18, 1925
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents