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. 05, 1990
Filed:
Nov. 06, 1989
Herbert Schwartz, Wurmberg, DE;
Timex Corporation, Waterbury, CT (US);
Abstract
A three hand movement of the type having a frame, a stepping motor mounted in the frame, a manually actutable timesetting stem disposed in the frame and a gear train driven by the stepping motor to rotate coaxial members carrying 'seconds', 'minutes', and 'hours' hands. An improved dual reduction gear assembly comprises a first rotatable member with a toothed wheel and a second rotatable member having first and second pinions driving the 'hours' and 'minutes' wheels. A timesetting gear is adapted to be clutched to the 'minute wheel'. A friction coupling connects the first and second rotatable members during timekeeping. During timesetting, the friction coupling slips to disengage the toothed wheel from the first and second pinions, so that the second rotatable member separately functions as a reduction gear during timesetting.