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:
Dec. 18, 2007

Filed:

Dec. 07, 2004
Applicants:

Rikiya Kunii, Saitama, JP;

Yasushi Sugiura, Saitama, JP;

Inventors:

Rikiya Kunii, Saitama, JP;

Yasushi Sugiura, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A first mark for indicating the direction of the rotational unbalance of a propeller shaft is provided on the propeller shaft while a second mark for indicating the direction of the rotational unbalance of a companion flange is provided on the companion flange, which is to be connected to the propeller shaft at a rotation-transmitting device. One of the directions of the rotational unbalances indicated by the first mark and the second mark is set as a direction along which the rotating mass becomes larger while the other is set as a direction along which the rotating mass becomes smaller, and one of the first mark and the second mark is provided over an angular region with a predetermined angle around an axis.


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