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. 28, 1987
Filed:
Sep. 02, 1986
Applicant:
Inventors:
James W Hamilton, Jr, Mebane, NC (US);
Edward A Long, Chapel Hill, NC (US);
Assignee:
General Electric Company, Charlottesville, VA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318706 ; 318709 ; 318778 ; 318783 ;
Abstract
A digital controller for synchronous motors prevents excessive heating of squirrel cage windings during motor starting. It reduces motor excitation if the actual accrued excitation time exceeds the maximum allowable excitation time of the controlled motor. It provides for adjustment of allowable time responsive to changes in excitation voltage. The thermal characteristic of the controlled motor is automatically derived from merely a few manually entered set point values.
Hamilton, Jr, James. (1987). Synchronous motor protection (U.S. Patent No. 4683411). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4683411
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile