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:
Nov. 18, 1986
Filed:
Sep. 17, 1985
Yasuo Kamiyama, Tanashi, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Abstract
An electronic watch with a chronograph system has a second hand for displaying the normal time and chronograph time, minute and hour hands for the normal time, a chronograph minute hand and a chronograph hour hand. The watch has a first motor for driving the second hand, a second motor for driving the minute hand and hour hand, and a gear train for transmitting the output of the first motor to the second hand, chronograph minute hand, and chronograph hour hand. A resetting mechanism is provided for resetting the chronograph minute hand and chronograph hour hand to respective zero positions. A first circuit means operates the first motor to reset the second hand to the zero position, and a second circuit means operates for starting and stopping the first motor. The resetting mechanism, first and second circuit means are operated by external manipulating means, thereby changing a normal time display mode to a chronograph time display mode.