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:
Jan. 05, 1988
Filed:
Apr. 23, 1986
Applicant:
Inventor:
Roger M Gray, Lewisville, TX (US);
Assignee:
Archive Corporation, Costa Mesa, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318696 ; 318685 ;
Abstract
A method and apparatus for driving a stepping motor in its single stepping mode of operation by supplying a series of alternate forward and reverse phases whereby the motor is caused to rotate through a single step. The motor may be operated in its slewing mode by supplying a series of alternate phases for each step in a series of steps.