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. 17, 2017

Filed:

Jul. 31, 2015
Applicant:

Yamaha Hatsudoki Kabushiki Kaisha, Iwata-shi, Shizuoka, JP;

Inventor:

Yukitaka Okamoto, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 11/00 (2006.01); B63H 11/11 (2006.01);
U.S. Cl.
CPC ...
B63H 11/11 (2013.01);
Abstract

A jet propelled watercraft includes a prime mover, a jet pump driven by the prime mover and jetting water from a jet port, a reverse gate changing a direction of the jet flow jetted from the jet pump, a shift actuator switching a position of the reverse gate among a plurality of shift positions, a reverse gate position detector detecting the position of the reverse gate, and a controller configured or programmed to execute a shift control of setting a target shift position of the reverse gate and controlling the shift actuator to move the reverse gate to the target shift position and execute an error judgment of judging that an error has occurred when the position detected by the reverse gate position detector differs from a control position.


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