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:
Nov. 27, 2001
Filed:
May. 25, 2000
Applicant:
Inventors:
Barry Kenneth Packman, Kent, GB;
Steven Knight, Kent, GB;
Assignee:
Ingersoll-Rand Architectural Hardware Group Limited, Birmingham, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E06B 3/76 ;
U.S. Cl.
CPC ...
E06B 3/76 ;
Abstract
A door comprising two metal panels and an internal core structure. The panels have their edges formed around a perimeter sub-frame of channel construction, the base of the channel being internally adjacent the respective edge of the door. Opposing edges of the panels are seam welded together to provide a flush finish, and the base of the channel is apertured to act as a heat sink and to allow weld gas to escape.