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:
Apr. 28, 2009

Filed:

Sep. 01, 2005
Applicant:

Tomohiro Fuse, Saitama, JP;

Inventor:

Tomohiro Fuse, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 11/08 (2006.01); B63H 11/103 (2006.01); F04D 29/40 (2006.01);
U.S. Cl.
CPC ...
Abstract

To provide a water jet propeller that enables an efficient flow of water from a water flow duct to an impeller housing even if an inner periphery of the impeller housing has an inside diameter smaller than the inside diameter of a rear end portion of the water flow duct. A water jet propeller has a stator disposed at a rear end portion of an impeller housing. An impeller is disposed inside the impeller housing. The water jet propeller expels a water jet by rotating the impeller. The water jet propeller further has the impeller disposed so as to circumvent a front end portion of an inner periphery of the impeller housing. The impeller housing includes a liner disposed over a region facing the impeller and representing the inner periphery of the impeller housing, except for the front end portion. The front end portion is formed to have an inside diameter that gradually increases forwardly.


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