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. 23, 1985
Filed:
Apr. 25, 1983
Charles E Randall, Monroe Township, Monroe County, PA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A fire resistant, elevator hatchway door entrance for wall openings up to and including 10 feet in height, including first and second side jambs and a head jamb. Each side jamb includes a pair of upstanding, oppositely facing, metallic channel members dimensioned and coupled together to define both a structural box beam and a pocket for receiving the wall which defines the opening. The bight and one leg portion of one channel member define the jamb depth and reveal, respectively, of the side jamb, and the bight of the other channel member receives and shields an asociated J-strut at the wall-entrance interface. The remaining leg portion of the one channel member may cooperate with a member disposed on the trailing edge of the associated door panel to define a flame shield and a mechanical limit for preventing undue separation of the door panel from the side jamb.