TREA

using electro-magnetic coupling between electric power source and pendulum

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Industry

  • CPC
  • G04C3/027
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Parent Industries

GPHYSICS G04Horology G04CELECTROMECHANICAL CLOCKS OR WATCHES G04C3/00Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means

Current Industry

G04C3/027using electro-magnetic coupling between electric power source and pendulum
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Structure of a ultrathin clock
    • Patent number 5,442,601
    • Issue date Aug 15, 1995
    • Ching-Ti Chen
    • G04 - HOROLOGY
  • Information Patent Grant

    Electromagnetic drive circuit
    • Patent number 4,866,564
    • Issue date Sep 12, 1989
    • Seikosha Co., Ltd.
    • Hiroshi Aoki
    • G04 - HOROLOGY
  • Information Patent Grant

    Electromagnetic driving circuit
    • Patent number 4,825,332
    • Issue date Apr 25, 1989
    • Hiroshi Aoki
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Whole body swingable clock
    • Patent number 4,468,132
    • Issue date Aug 28, 1984
    • Rhythm Watch Co., Ltd.
    • Norihiko Nakamura
    • G04 - HOROLOGY
  • Information Patent Grant

    Pendulum arrangement for clock movement
    • Patent number 4,449,831
    • Issue date May 22, 1984
    • Rhythm Watch Co., Ltd.
    • Masaru Itami
    • G04 - HOROLOGY
  • Information Patent Grant

    Pendulum arrangement of pendulum clock
    • Patent number 4,378,166
    • Issue date Mar 29, 1983
    • Rhythm Watch Company, Ltd.
    • Masaru Itami
    • G04 - HOROLOGY
  • Information Patent Grant

    Mechanically operating pendulum clock with an electronic correcting...
    • Patent number 4,196,579
    • Issue date Apr 8, 1980
    • Urgos Uhrenfabrik Schwenningen, Haller, Jauch und Pabst GmbH & Co.
    • Konrad Schaefer
    • G04 - HOROLOGY
  • Information Patent Grant

    Pendulum device for battery-powered clockwork mechanism
    • Patent number 4,043,118
    • Issue date Aug 23, 1977
    • Kienzle Uhrenfabriken GmbH
    • Albrecht Haag
    • G04 - HOROLOGY
  • Information Patent Grant

    Electromechanical clock
    • Patent number 3,990,226
    • Issue date Nov 9, 1976
    • Kieninger & Obergfell Fabrik fur technische Laufwerke und Apparate
    • Wolfgang Fehrenbacher
    • G04 - HOROLOGY
  • Information Patent Grant

    3798891
    • Patent number 3,798,891
    • Issue date Mar 26, 1974
    • G04 - HOROLOGY
  • Information Patent Grant

    3762154
    • Patent number 3,762,154
    • Issue date Oct 2, 1973
    • G04 - HOROLOGY
  • Information Patent Grant

    3750386
    • Patent number 3,750,386
    • Issue date Aug 7, 1973
    • G04 - HOROLOGY
  • Information Patent Grant

    3605401
    • Patent number 3,605,401
    • Issue date Sep 20, 1971
    • G04 - HOROLOGY
  • Information Patent Grant

    3457483
    • Patent number 3,457,483
    • Issue date Jul 22, 1969
    • G04 - HOROLOGY
  • Information Patent Grant

    3424960
    • Patent number 3,424,960
    • Issue date Jan 28, 1969
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    3403312
    • Patent number 3,403,312
    • Issue date Sep 24, 1968
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3360703
    • Patent number 3,360,703
    • Issue date Dec 26, 1967
    • G04 - HOROLOGY
  • Information Patent Grant

    3221231
    • Patent number 3,221,231
    • Issue date Nov 30, 1965
    • G04 - HOROLOGY
  • Information Patent Grant

    3168690
    • Patent number 3,168,690
    • Issue date Feb 2, 1965
    • G04 - HOROLOGY
  • Information Patent Grant

    3128398
    • Patent number 3,128,398
    • Issue date Apr 7, 1964
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3124730
    • Patent number 3,124,730
    • Issue date Mar 10, 1964
    • G04 - HOROLOGY
  • Information Patent Grant

    3118098
    • Patent number 3,118,098
    • Issue date Jan 14, 1964
    • G04 - HOROLOGY
  • Information Patent Grant

    3100278
    • Patent number 3,100,278
    • Issue date Aug 6, 1963
    • G04 - HOROLOGY
  • Information Patent Grant

    3040225
    • Patent number 3,040,225
    • Issue date Jun 19, 1962
    • G04 - HOROLOGY
  • Information Patent Grant

    2974265
    • Patent number 2,974,265
    • Issue date Mar 7, 1961
    • G04 - HOROLOGY
  • Information Patent Grant

    2949583
    • Patent number 2,949,583
    • Issue date Aug 16, 1960
    • G04 - HOROLOGY
  • Information Patent Grant

    2847818
    • Patent number 2,847,818
    • Issue date Aug 19, 1958
    • G04 - HOROLOGY
  • Information Patent Grant

    2761982
    • Patent number 2,761,982
    • Issue date Sep 4, 1956
    • G04 - HOROLOGY
  • Information Patent Grant

    2739250
    • Patent number 2,739,250
    • Issue date Mar 20, 1956
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2642715
    • Patent number 2,642,715
    • Issue date Jun 23, 1953
    • G04 - HOROLOGY