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:
Dec. 14, 1976
Filed:
Apr. 03, 1975
Applicant:
Inventors:
Robert A Pajak, St. Paul, MN (US);
Richard B Porter, Bloomington, MN (US);
Assignee:
Honeywell Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318212 ; 318382 ;
Abstract
A shaded pole electric motor which utilizes shading coils on the shaded poles is operated to provide a braking action. The shading coils are normally operated to cause the motor to operate either clockwise or counterclockwise. The current flow in the shading coils is used to gate a triac for normal operation. When the triac is not gated, the energizing potential for the motor operates a unidirectional current control circuit to energize the motor winding with half-wave direct current to brake the motor.