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:
Dec. 20, 1994
Filed:
Apr. 09, 1993
Applicant:
Inventor:
Robert J Lyons, Sr, Hamden, CT (US);
Assignee:
The Bilco Company, West Haven, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E05F / ;
U.S. Cl.
CPC ...
49386 ; 16308 ;
Abstract
A counterbalancing assembly and a non-vertically hinged door assembly incorporating the same include a first pair of torque rods directly connected between the door and a frame which produce a partial counterbalancing torque. A second pair of torque rods acting through cams produce an augmenting counterbalancing torque such that the sum of the partial and augmenting torques fully counterbalance the door throughout its arc of motion.