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:
Aug. 06, 1985
Filed:
Apr. 30, 1982
Applicant:
Inventors:
William H Tobey, Littleton, CO (US);
Donald A Thomas, Englewood, CO (US);
William J Gardner, Littleton, CO (US);
Assignee:
Martin Marietta Corporation, Bethesda, MD (US);
Primary Examiner:
Int. Cl.
CPC ...
E05F / ;
U.S. Cl.
CPC ...
16295 ; 16308 ; 16323 ; 16375 ; 16387 ;
Abstract
A hinge assembly which includes two sleeves, two U-channels, a spring to effect pivotal movement between the sleeves and several links which both transmit drive force from the spring and act as an overcenter latch to lock the hinge assembly in an unfolded configuration. Each U-channel is disposed within one of the sleeves and is pivotally connected to the other U-channel to provide the pivotal connection between the sleeves. The spring and links are contained within the interior of the hinge assembly to provide a smooth, snag resistant exterior.