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. 18, 1981
Filed:
Oct. 17, 1979
S Eugene Hubbard, Niles, MI (US);
Richard A Meisterheim, Dowagiac, MI (US);
Ernest B Symon, South Bend, IN (US);
Kawneer Company, Inc., Niles, MI (US);
Abstract
A safety flush bolt entrance door system includes a pair of doors mounted in an entrance frame for outward opening with each door pivotally supported for individual opening and closing movement. A normally active door is provided with a locking mechanism adapted to engage an opposite, normally inactive, door for securing the doors together. One or more flush bolt mechanism(s) is mounted on the normally inactive door for locking the door with the door frame whenever the locking mechanism on the active door is engaged with the inactive door. A control mechanism is mounted on the inactive door and interconnected with the flush bolt mechanism(s) so that whenever the active door is unlocked, the flush bolt mechanism(s) is releasable in response to an opening force applied against the inactive door.