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:
Aug. 02, 1977
Filed:
Jun. 20, 1975
Applicant:
Inventor:
Kinji Tanikoshi, Kawasaki, JA;
Assignees:
Canon Kabushiki Kaisha, Tokyo, JA;
Canon Seiki Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
318254 ; 318138 ; 318256 ; 318286 ;
Abstract
A DC motor is controlled by a Hall generator provided in a control circuit which detects the voltage equivalent to the terminal voltage of a driving means connected to the flux-producing windings positioned in torque-producing relation to the rotor, and regulates to always keep the terminal voltage of the driving means constant.