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:
Mar. 17, 1987
Filed:
Aug. 01, 1985
Applicant:
Inventors:
William M Truman, Baldwin Boro, PA (US);
Henry J Wesling, Mt. Oliver, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318318 ; 318317 ; 318139 ; 318341 ; 3183 / ; 363124 ;
Abstract
Current regulation is provided for the propulsion motor of a vehicle operative with a track signal block control signal having a known frequency characteristic, by modulation of a selected group of potential output ON pulses from a chopper apparatus coupled with the motor and in relation to the program cycle time of a control microprocessor such that the resulting harmonic sidebands are positioned to minimize electromagnetic interference with that control signal.
Quick Actions:
Truman, William. (1987). Transit vehicle start-up propulsion motor control apparatus and method (U.S. Patent No. 4651070). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4651070
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile