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. 04, 2015
Filed:
Oct. 18, 2011
Adam Joshua Schrems, Chicago, IL (US);
Brian Roy Skotty, Elmhurst, IL (US);
Adam Joshua Schrems, Chicago, IL (US);
Brian Roy Skotty, Elmhurst, IL (US);
The Chamberlain Group, Inc., Elmhurst, IL (US);
Abstract
A motor is configured to operate in one of at least two modes in response to determining that a power provided by a power supply for the motor crosses certain thresholds. For example, first and second windings apply a rotating force to a rotating armature of a single motor. The first and second windings are electrically coupled to first and second commutators, respectively, which transmit power to the first and second windings from a first and second power source, respectively. In other aspects, different power sources power the motor, and the motor operates at different speeds depending on the power source applied. For example, the change in power sources is effected in response to detecting a change in applied power past a threshold, thus effecting the motor's operation in a second, different speed. So configured, a single motor can reduce deployment of bulky and expensive add-on equipment.