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.:

US 8904586 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 09, 2014

Filed:

Nov. 05, 2008
Applicant:

David Charles Rhodes, Auckland, NZ;

Inventor:

David Charles Rhodes, Auckland, NZ;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06F 33/02 (2006.01); D06F 37/30 (2006.01); H02P 6/08 (2006.01); H02P 3/18 (2006.01);
U.S. Cl.
CPC ...
H02P 6/085 (2013.01); D06F 37/304 (2013.01); D06F 33/02 (2013.01); H02P 3/18 (2013.01);
Abstract

Provided is a method of operating a motor at a low speed. The method includes sensing an event corresponding to an angular position of the motor. If the event occurs between a first time threshold and a second time threshold, the method includes slowing the motor. If the event has not occurred by the first time threshold, the method includes increasing driving power to the motor.


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