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:
May. 17, 1988
Filed:
Sep. 22, 1986
Applicant:
Inventor:
William T Young, Dawsonville, GA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318749 ; 318817 ;
Abstract
An apparatus for starting and running a plurality of three-phase motors from a single-phase power source is described. Two of the main coils of a three-phase motor are used to run the motor as a single-phase induction motor. The third coil of a three-phase motor is used as a starting coil and is selectively powered through a switch and a capacitor. The capacitor provides the necessary difference in the phase angle of the current in the starting coil and the main coils to provide starting torque for the operation of the motor.