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:
Oct. 13, 1987
Filed:
Aug. 22, 1986
Applicant:
Inventor:
Paul Wuthrich, Watertown, CT (US);
Assignee:
Timex Corporation, Waterbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 / ; 310 43 ; 310156 ;
Abstract
A wristwatch movement has a Lavet stepping motor directly driving a toothed center wheel by means of a drive pinion which is an integral part of the stepping motor rotor. The rotor comprises a bipolar permanent magnet member and a plastic rotor body molded around the central part of the magnet member to surround it. The rotor body defines a pair of driving pins oriented at a preselected angle with respect to the axis of magnetization. The rotor body also includes journals supporting it for rotation within the stator opening of the stepping motor.