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. 06, 2009

Filed:

Dec. 04, 2006
Applicants:

Hiroshi Tanimura, Kariya, JP;

Hisashi Kino, Obu, JP;

Inventors:

Hiroshi Tanimura, Kariya, JP;

Hisashi Kino, Obu, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 19/00 (2006.01); F02D 11/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A system having a screw structure includes a casing and a self-tapping screw. The casing includes a through hole. The self-tapping screw includes a male thread portion and an unthreaded column portion arranged relative to each other in a longitudinal direction of the self-tapping screw, and is threadably coupled to the casing through the through hole. The through hole includes a large diameter hole portion and a small diameter hole portion. The large diameter hole portion is engaged with the male thread portion. The small diameter hole portion is engaged with the unthreaded column portion. The large diameter hole portion has a longitudinal length shorter than a longitudinal length of the unthreaded column portion.


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