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. 14, 2002
Filed:
Oct. 07, 1999
John E. Walsh, III, Wallingford, CT (US);
Harrow Products, Inc., Grand Rapids, MI (US);
Abstract
An exit bar for securing a door has a housing assembly adapted for mounting to a door. A push pad for receiving a push force is mounted to the housing assembly. A latch is pivotable relative to the housing assembly to releasably latch the door to which the exit bar is mounted. A mechanical retraction system links the push bar to the latch so that a push force exerted on the push pad releases the latch. A selectively operable electromagnet is disposed within the housing assembly. An electromagnetic retraction system links the electromagnet to the latch independently of the mechanical retraction system so that selective operation of the electromagnet retracts the latch. The electromagnet further dogs the electromagnetic retraction system, and thereby the latch, in the retracted condition as long as the electromagnet receives power. The push bar and mechanical retraction system may be dogged by the electromagnet upon the first exertion of a push force thereon.