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:
Apr. 18, 2006
Filed:
Mar. 25, 2004
Takashi Takahashi, Chiba, JP;
Mamoru Watanabe, Chiba, JP;
Katsuyoshi Takizawa, Chiba, JP;
Shigeo Suzuki, Chiba, JP;
Takeshi Tokoro, Chiba, JP;
Takashi Takahashi, Chiba, JP;
Mamoru Watanabe, Chiba, JP;
Katsuyoshi Takizawa, Chiba, JP;
Shigeo Suzuki, Chiba, JP;
Takeshi Tokoro, Chiba, JP;
Seiko Instruments Inc., Chiba, JP;
Abstract
To realize a chronograph timepiece capable of firmly and simultaneously zeroing an hour heart cam, a second heart cam and a minute heart cam. A chronograph timepiece of the invention includes a hammer operated by operating a reset button for controlling to operate to zero an hour chronograph wheel & pinion, a minute chronograph wheel & pinion and a second chronograph wheel & pinion. When the hammer is brought into contact with an hour heart cam, a second heart cam and a minute heart cam, a position of the hammer is determined only by the hour heart cam, the second heart cam and the minute heart cam. When the hammer is brought into contact with the hour heart cam, the second heart cam and the minute heart cam, a direction of a press force exerted to the hammer is constituted to pass a rotational center of the second chronograph wheel.