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. 16, 1976
Filed:
May. 06, 1975
Applicant:
Inventor:
Mitsuo Nagase, Kurobe, JA;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
E05D / ;
U.S. Cl.
CPC ...
16136 ; 16191 ;
Abstract
To prevent the wear of, and noise production by, the opposed or abutting ends of knuckles on a pair of hinge leaves, a pair of rings of wear resisting material are interposed between the opposed ends of each two adjacent knuckles, with a pintle passing through the knuckles and rings. The rings have pairs of fingers gripping the opposed marginal edges of the leaves, respectively, so that the paired rings rotate relative to each other with the swinging movement of the leaves. Each ring with its pair of fingers is exactly flat and is therefore manufacturable by punching from sheet metal, plastic or the like.