Horology: time measuring systems or devices – Electrical time base – Solid state oscillating circuit type
Patent
1992-02-27
1992-09-29
Roskoski, Bernard
Horology: time measuring systems or devices
Electrical time base
Solid state oscillating circuit type
368160, 310104, 310 15, G04C 300, H02K 4710
Patent
active
051518864
ABSTRACT:
An electronic timepiece provides continuous rotation for a hand in response to a discrete driving rotation. An energy storage mechanism is coupled to the discrete driving rotation and converts the discrete driving rotation into stored energy. A control mechanism continuously releases the stored rotational energy as continuous rotation. A linkage coupled between the energy storage mechanism and control mechanism transmits continuous rotation therebetween and drives the hand in a continuous sweeping manner.
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patent: 3937001 (1976-02-01), Berney
patent: 3961213 (1976-06-01), Koike et al.
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patent: 4065587 (1987-12-01), Ting
patent: 4703338 (1987-10-01), Sagami et al.
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patent: 4885730 (1989-12-01), Miyazawa
Neue Technologie--Kleben in der Uhrentechnik vol. 23 No. 4; 28 fevrier 1969--pp. 14-16.
Development Of The Viscous Sweep Second Hand System by Osamu Miyazawa and Osamu Takahashi, Congres European De Chronometrie, C.E.C. Sep. 23-24, 1988, Session 5, Communication 22, pp. 119 through 122.
Kaplan Blum
Roskoski Bernard
Seiko Epson Corporation
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