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:
Jul. 13, 2021
Filed:
Dec. 18, 2019
Multimatic Inc., Markham, CA;
Multimatic Inc., Markham, CA;
Abstract
A door power drive module includes a housing and a motor arranged in the housing. First and second gearboxes are arranged in the housing and are coupled in series with one another by a shaft member. The first gearbox connects the motor to the second gearbox. An output shaft is coupled to the second gearbox. A brake assembly is selectively connected to the shaft member. The brake assembly has a normally closed position in which the shaft member is grounded to the housing. The brake assembly includes an open position corresponding to one of a door closing mode and a door opening mode. The shaft member is configured to be rotatable relative to the housing in the brake open position in response to the motor driving the first gearbox. The brake assembly includes a holding torque in the normally closed position. A torque is applied to the brake assembly above the holding torque that permits the shaft member to rotate in any direction of rotation. A position sensor is configured to detect rotation of the output shaft.