CH533330A - Dispositif électromagnétique pour appareil horaire - Google Patents

Dispositif électromagnétique pour appareil horaire

Info

Publication number
CH533330A
CH533330A CH1581569A CH1581569A CH533330A CH 533330 A CH533330 A CH 533330A CH 1581569 A CH1581569 A CH 1581569A CH 1581569 A CH1581569 A CH 1581569A CH 533330 A CH533330 A CH 533330A
Authority
CH
Switzerland
Prior art keywords
time
electromagnetic
electromagnetic device
time device
Prior art date
Application number
CH1581569A
Other languages
English (en)
Inventor
Nunokawa Shinji
Tabuchi Norio
Shimada Tatsuo
Original Assignee
Hattori Tokeiten Kk
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 Hattori Tokeiten Kk filed Critical Hattori Tokeiten Kk
Publication of CH533330A publication Critical patent/CH533330A/fr

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
    • G04C3/108—Driving circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Electromechanical Clocks (AREA)
CH1581569A 1968-10-24 1969-10-23 Dispositif électromagnétique pour appareil horaire CH533330A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7710968 1968-10-24

Publications (1)

Publication Number Publication Date
CH533330A true CH533330A (fr) 1972-10-13

Family

ID=13624601

Family Applications (2)

Application Number Title Priority Date Filing Date
CH1581569A CH533330A (fr) 1968-10-24 1969-10-23 Dispositif électromagnétique pour appareil horaire
CH1581569D CH1581569A4 (fr) 1968-10-24 1969-10-23

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH1581569D CH1581569A4 (fr) 1968-10-24 1969-10-23

Country Status (3)

Country Link
US (1) US3622850A (fr)
CH (2) CH533330A (fr)
GB (1) GB1274099A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6922065B2 (en) * 2001-05-08 2005-07-26 Nohken Inc. Coil impendance detection method and object detection method and apparatus using the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749441A (en) * 1952-08-28 1956-06-05 Dunford A Kelly Phase shift oscillator
US2950447A (en) * 1955-03-31 1960-08-23 Clarence H Mcshan Electromechanical transducer apparatus and systems embodying the same
US2942205A (en) * 1955-03-31 1960-06-21 Clarence H Mcshan Electromechanical transducer apparatus and systems embodying the same
US3045191A (en) * 1958-09-02 1962-07-17 Itt Transistor phase shift oscillators
GB1066036A (en) * 1962-10-25 1967-04-19 Matsushita Electric Ind Co Ltd Method for controlling speed of a motor of brushless type
CH142467A4 (fr) * 1967-01-31 1970-04-30

Also Published As

Publication number Publication date
GB1274099A (en) 1972-05-10
CH1581569A4 (fr) 1972-10-13
DE1952577A1 (de) 1970-07-09
DE1952577B2 (de) 1976-05-26
US3622850A (en) 1971-11-23

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