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:
Sep. 05, 1995
Filed:
Sep. 10, 1992
Applicant:
Inventors:
Makoto Yoshida, Machida, JP;
Hiroyuki Matsumoto, Yokohama, JP;
Assignee:
Aupac Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B / ; F16B / ;
U.S. Cl.
CPC ...
411383 ; 411339 ; 411903 ; 411914 ;
Abstract
A bolt, rivet or similar fastener for fastening separate structural parts has a shank, and a tubular cover member covering at least part of the periphery of the shank for preventing a stress from concentrating in part of the shank. The cover member is made of a material having greater deformability or greater elastic strain energy than the material constituting the shank or is made of a material having a relatively small coefficient of friction. When vibration or impact acts on the fastener, the cover member disperses the resulting stress to protect the shank against breakage.