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. 16, 2001
Filed:
Jul. 08, 1999
Applicant:
Inventor:
Renyan William Fei, St. Louis, MO (US);
Assignee:
Emerson Electric Co., St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 7/48 ; H02K 3/00 ;
U.S. Cl.
CPC ...
H02P 7/48 ; H02K 3/00 ;
Abstract
A motor comprising a 2/4-pole permanent-split capacitor motor having a shared main winding and a shared auxiliary winding. The shared auxiliary winding comprises a 4-pole auxiliary winding phase shifted one slot less than a phase shift of 90 degrees with respect to the 4-pole main winding. A switching circuit selectively simultaneously energizes the shared main winding and the shared auxiliary winding in the 2-pole and 4-pole configurations.