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:
Nov. 09, 1976
Filed:
Dec. 17, 1974
Applicant:
Inventor:
Brian John Chalmers, Bramhall, EN;
Assignee:
C.A.V. Limited, Birmingham, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318186 ; 318192 ;
Abstract
A brushless A.C. synchronous motor includes a stator assembly having a stator winding and an inverter for feeding the stator winding, a rotor assembly including a field winding and a transformer having a primary winding on the stator assembly and a secondary winding on the rotor assembly. The primary winding is fed by an oscillator on the stator assembly, and the secondary winding provides an output for the field winding by way of rectifier.