The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 1981
Filed:
Jun. 19, 1979
Applicant:
Inventors:
Munetaka Tamaru, Igusa, Suginami-ku, Tokyo, JP;
Toshikazu Hatuse, Tanashi-shi, Tokyo, JP;
Assignee:
Citizen Watch Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04B / ;
U.S. Cl.
CPC ...
368 28 ; 368 37 ; 368 38 ;
Abstract
A drive mechanism for an additional mechanism of an electronic timepiece having a time-keeping system driven by a reversible stepping motor, in which an auxiliary driving source is arranged to accumulate energy utilizing a drive power transmitted from a time-keeping system for driving additional mechanism, and locking means maintains the energy stored in the auxiliary driving source.