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:
Apr. 06, 1999
Filed:
Sep. 24, 1997
Applicant:
Inventors:
Paul J Haeck, Carmel, IN (US);
Raymond Peeler, Westfield, IN (US);
Assignee:
Detex Corporation, Braunfels, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
E06B / ;
U.S. Cl.
CPC ...
49365 ; 49-7 ;
Abstract
The removable mullion assembly allows a mullion to be removed, thereby allowing wider objects to pass through double doors. The top fitting of the assembly includes a spring loaded retaining bolt which locks the mullion in place. A locking mechanism attached to the top fitting allows the retaining bolt to be disengaged from the mullion. However, in the event of a fire, a meltable platform within the top fitting releases a deadlock, which mechanically blocks the retaining bolt from disengaging the mullion.