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:
Jul. 03, 1984
Filed:
Jun. 02, 1983
Applicant:
Inventors:
Thomas C Matty, North Huntingdon, PA (US);
Dennis E Whalen, North Huntingdon, PA (US);
William E Schmitz, Wilkinsburg, PA (US);
Pamela E DeTine, West Mifflin, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318270 ; 318 60 ; 318 61 ; 318275 ; 318317 ; 318395 ;
Abstract
A cam controller for determining the operation of an electric motor is coupled with a stepping motor to provide predetermined positional movements of the cam controller in response to a desired electric motor operation control signal and in accordance with a programmed microprocessor determined comparison of the actual electric motor current with a requested current related to the desired operation control signal.