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:
Jan. 29, 1980
Filed:
Dec. 12, 1977
Applicant:
Inventor:
Francis Besson, Savagnier, CH;
Assignee:
Girard-Perregaux S.A., Neuenburg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310194 ; 310207 ; 58 2 / ; 310 / ;
Abstract
An electric rotary stepping motor intended for use in watch movements comprises a stator including a coil support coaxial with the rotor, two compact coils having flat turns, and a field-closing yoke capable of magnetically blocking the rotor in a position enabling it to start up in the desired direction. The motor is made more compact, and its manufacture and assembly are simplified, by designing the coil support with two diametrically opposed arms and the coils as self-supporting elements in which the turns of the windings are joined to one another.