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:
May. 13, 2008
Filed:
Jul. 08, 2004
Applicant:
Kenji Mochizuki, Yao, JP;
Inventor:
Kenji Mochizuki, Yao, JP;
Assignee:
Isel Co., Ltd., Yao-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25G 3/24 (2006.01); F16B 2/02 (2006.01); F16B 7/04 (2006.01); F16D 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a fastening tool in which fastening members may be inclined as they are threadedly inserted together whereby almost no displacement load is applied to the members, a member having a bolt through hole with a tapered seat surface, and a fastening bolt that includes a bolt body provided about its outer periphery with a male thread, and a head provided on an end of the bolt body that has a diameter greater than that of the bolt body, in which the head has a lower outwardly curved tapered surface whose diameter is reduced toward the bolt body so that the lower surface abuts against the tapered seat surface when the fastening tool is used.