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.
Patent No.:
Date of Patent:
Mar. 28, 2006
Filed:
Jun. 22, 2004
Applicants:
Isao Kanno, Hamamatsu, JP;
Seiji Inoue, Hamamatsu, JP;
Inventors:
Isao Kanno, Hamamatsu, JP;
Seiji Inoue, Hamamatsu, JP;
Assignee:
Yamaha Marine Kabushiki Kaisha, Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 21/21 (2006.01);
U.S. Cl.
CPC ...
Abstract
A watercraft has an engine that is controlled to reduce the likelihood of engine damage and rider discomfort when the watercraft engine speed is rapidly increased due to a lack of load on the propulsion unit. The engine is controlled by a method that detects engine speed and reduces the power output of the engine by varying degrees or restores the power output of the engine by varying degrees depending on the speed of the engine relative to plural predetermine speeds.