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:
Sep. 30, 2014
Filed:
Apr. 30, 2012
Applicants:
Koichiro Morota, Shizuoka, JP;
Shigeyuki Ozawa, Shizuoka, JP;
Inventors:
Koichiro Morota, Shizuoka, JP;
Shigeyuki Ozawa, Shizuoka, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63H 21/32 (2006.01); F01N 13/00 (2010.01); F01N 3/04 (2006.01); F01N 13/14 (2010.01); F01N 13/18 (2010.01); F01N 13/12 (2010.01);
U.S. Cl.
CPC ...
B63H 21/32 (2013.01); F01N 3/043 (2013.01); F01N 13/141 (2013.01); F01N 13/1805 (2013.01); Y02T 10/20 (2013.01); F01N 13/12 (2013.01);
Abstract
A water jet propulsion watercraft includes a first exhaust pipe that is fixed to an engine and connected to an exhaust port of the engine. A damper section reduces vibrations from the engine. A catalytic converter unit is connected to the first exhaust pipe. The catalytic converter unit is attached to the engine through the damper section. A second exhaust pipe includes a first flexible pipe having a flexible quality and is connected to the catalytic converter unit. A water lock is fixed to a hull of the watercraft and connected to the second exhaust pipe.