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:
Aug. 28, 1979
Filed:
Oct. 14, 1976
Applicant:
Inventor:
Michael H Estkowski, St. Joseph, MI (US);
Assignee:
V-M Corporation, Benton Harbor, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 41 ; 192 / ;
Abstract
The present invention provides a permanent magnet type of synchronous a.c. motor embodying an improved form of no-back by which the motor upon being energized is caused to start from rest invariably in the predetermined direction of rotation. Furthermore, the motor is capable of satisfactory operation in a wider range of angular positions of the motor shaft than prior motors, and it is inherently more sensitive to initiate the direction of rotation correctly than devices of the prior art.