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. 01, 2017
Filed:
Jul. 20, 2015
Applicant:
Dresser, Inc., Addison, TX (US);
Inventor:
Andrew Logan Perkins, Houston, TX (US);
Assignee:
Dresser, Inc., Addison, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 5/00 (2006.01); H02H 7/08 (2006.01); H02H 1/04 (2006.01); H02H 3/00 (2006.01); H02H 7/093 (2006.01); H02K 7/116 (2006.01); H02K 11/20 (2016.01); H02K 11/21 (2016.01); H02K 11/25 (2016.01);
U.S. Cl.
CPC ...
H02H 7/093 (2013.01); H02K 7/116 (2013.01); H02K 11/20 (2016.01); H02K 11/21 (2016.01); H02K 11/25 (2016.01); H02K 2213/06 (2013.01);
Abstract
A safety device for an actuator that can modulate power to an electric motor in response to a fault condition (e.g., stall). In one embodiment, the actuator can include a motor with a shaft, a sensor disposed in proximity to the shaft, and a control processor coupled with the sensor and the motor. The control processor can be configured to receive a signal from the sensor that conveys operating data that relates to rotation of the shaft, use the operating data to identify a fault condition on the motor, and change the motor from an energized condition to a de-energized condition in response to the fault condition.