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.

Date of Patent:
Jul. 13, 1993

Filed:

Dec. 10, 1991
Applicant:
Inventor:

Simon J Griffins, Solihull, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05D / ;
U.S. Cl.
CPC ...
16264 ; 16263 ; 16388 ; 16335 ;
Abstract

A checked lift-off hinge assembly including a pair of hinge leaves pivotally connected to one another so as to be separable by relative movement along the axis of the pivotal connection, a torsion spring mounted on one of said hinge leaves, the torsion spring extending towards and being co-operable with one or more reaction members on the other hinge leaf to provide a checking force for resisting relative pivoted movement between the hinge leaves, said one hinge leaf including positional displacement means operable on said torsion spring for moving the torsion spring to relieve spring pressure on the reaction members to thereby enable axial separation of the hinge leaves.


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