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:
Sep. 03, 2013
Filed:
Oct. 21, 2009
W. Michael Coleman, Salt Lake City, UT (US);
Duane O. Hall, Sandy, UT (US);
E. Carl Goodman, Bountiful, UT (US);
Michael D. George, Kaysville, UT (US);
D. George Field, Pleasant Grove, UT (US);
W. Michael Coleman, Salt Lake City, UT (US);
Duane O. Hall, Sandy, UT (US);
E. Carl Goodman, Bountiful, UT (US);
Michael D. George, Kaysville, UT (US);
D. George Field, Pleasant Grove, UT (US);
Won-Door Corporation, Salt Lake City, UT (US);
Abstract
In one embodiment, a closure assembly for a fire door, including a first lead post having a longitudinal cavity located therein, an opening extending through a wall of the first lead post into the longitudinal cavity and a locking member may be positioned within the longitudinal cavity that is configured to obstruct the opening into the longitudinal cavity upon reaching a predetermined temperature, is disclosed. In additional embodiments, fire doors including such closure assemblies and methods of locking fire doors are disclosed.