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. 26, 2005
Filed:
Apr. 03, 2003
Wayne C. Hom, Rancho Santa Margarita, CA (US);
Walter Parsadayan, Lake Forest, CA (US);
Daniel Perez, Foothill Ranch, CA (US);
Wayne C. Hom, Rancho Santa Margarita, CA (US);
Walter Parsadayan, Lake Forest, CA (US);
Daniel Perez, Foothill Ranch, CA (US);
The Chamberlain Group, Inc., Elmhurst, IL (US);
Abstract
A system is disclosed for providing a backup power supply for a security gate system. In a preferred embodiment it includes a primary power supply, an AC motor and an auxiliary DC motor that share the same accessory devices including controller, movement mechanism, sensors, communication unit, etc. The auxiliary DC motor has its own independent DC power supply. If the primary power supply fails the auxiliary power supply takes over and moves the barrier between the open and closed positions as needed without interruption of service.