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:
Jan. 01, 2002

Filed:

Sep. 22, 2000
Applicant:
Inventors:

Makoto Torisu, Nishio, JP;

Ryuji Suzuki, Nishio, JP;

Keiji Nomura, Nishio, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B 2/500 ; F16B 3/504 ;
U.S. Cl.
CPC ...
F16B 2/500 ; F16B 3/504 ;
Abstract

The nut has a tool engaging region or a hexagonal region and a flange region provided on a thread end of the hexagonal region. A sloped step sloping at an angle to the center line of the nut is provided on the thread end. The sloped step (surface) is thus shaped of the annular form on the inner wall of the nut adjacent to the nut opening which faces outwardly of the nut and substantially extends along the loop.


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