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. 03, 1980
Filed:
Feb. 09, 1978
Roland Sudler, Frankfurt am Main, DE;
Quarz-Zeit AG, Frankfurt am Main, DE;
Abstract
A single phase stepping motor, particularly for clocks, with a disc-like, axially magnetized rotor with a number of poles and a stator, the latter being made of two stator parts connected with one another via a bridge part, the latter carrying the excitation winding, of which each stator part on its free end passes into a smaller number (in comparison to half of the rotor pole number) of main poles, the main poles being directed towards the face side of the rotor, at least a part of the main poles being provided with auxiliary poles. Both stator parts lie in a first plane at least in the region of the stator poles, and the rotor is arranged in a second plane parallel thereto. A return disc is disposed on a face side of the rotor, which faces away from the stator poles.