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:
Apr. 21, 1987
Filed:
Feb. 14, 1986
Applicant:
Inventors:
Donald F Angi, Dayton, OH (US);
Jack W Savage, Centerville, OH (US);
Ralph D Unterborn, Dayton, OH (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 62 ; 310 59 ; 310 / ; 310 63 ; 310 / ; 310 / ;
Abstract
The control circuitry of a brushless blower motor is mounted on the stator of the motor and is cooled during operation of the blower by a portion of the air moved by the blower. A rotor cup member which covers and protects the control circuitry has at least a pair of radially displaced openings formed therein, and air is conveyed through the openings due to an air pressure differential therebetween created by the movement of air by the blower.