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. 11, 1978
Filed:
Dec. 10, 1976
Applicant:
Inventor:
George Francis Schroeder, Wayne, NJ (US);
Assignee:
The Singer Company, Little Falls, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
318102 ; 318171 ;
Abstract
Motors, particularly gyro motors, are started by initially operating the motors at a frequency lower than their normal operating frequency so as to draw a larger current and develop greater starting torque with the maximum current and torque limited by a current limiting DC power supply. Where at least two motors are provided sequencing of the two motors is accomplished thereby permitting use of essentially the same power supply which is required for normal operation.