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. 24, 1989
Filed:
Nov. 19, 1986
Applicant:
Inventor:
Ralph Kuttner, Fullerton, CA (US);
Assignee:
Steel Casting Engineering, Ltd., Orange, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318293 ; 318312 ;
Abstract
A DC brush motor amplifier control includes a current switch power supply together with switching logic for operating the motor in response to a predetermined motor current signal. An encoder coupled to the DC brush motor provides a feedback signal used to control the motor operation. An overspeed detection system senses motor speeds in excess of a predetermined threshold and disables the switching logic to avoid overspeed failure.