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. 22, 2018
Filed:
Aug. 22, 2012
Applicants:
Kyle W. Rogers, Arlington, MA (US);
Daryl J. Marvin, Farmington, CT (US);
Inventors:
Kyle W. Rogers, Arlington, MA (US);
Daryl J. Marvin, Farmington, CT (US);
Assignee:
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B 1/06 (2006.01); B66B 1/30 (2006.01); B66B 1/32 (2006.01); B66B 5/00 (2006.01); G01P 3/44 (2006.01); H02P 3/22 (2006.01);
U.S. Cl.
CPC ...
B66B 1/30 (2013.01); B66B 1/308 (2013.01); B66B 1/32 (2013.01); B66B 5/0043 (2013.01); G01P 3/44 (2013.01); H02P 3/22 (2013.01);
Abstract
An elevator system includes a motor having a plurality of motor windings; a plurality of braking switches coupled to the motor windings, the braking switches coupling the motor windings to a common electrical point; a sensor coupled to the motor, the sensor providing a sensed signal indicative of a parameter of the motor; and a controller providing a braking signal to the braking switches in response to the sensed signal to selectively control the braking switches to short the motor windings.