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:
Apr. 14, 2009
Filed:
May. 31, 2007
Applicants:
Masanori Takahashi, Shizuoka-ken, JP;
Noriyoshi Hiraoka, Shizuoka-ken, JP;
Mitsuru Nagashima, Shizuoka-ken, JP;
Yu Ito, Shizuoka-ken, JP;
Inventors:
Masanori Takahashi, Shizuoka-ken, JP;
Noriyoshi Hiraoka, Shizuoka-ken, JP;
Mitsuru Nagashima, Shizuoka-ken, JP;
Yu Ito, Shizuoka-ken, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 21/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
An outboard motor has an engine, a cowling for accommodating the engine, and an air duct for introducing ambient air into the cowlingAn air filter is provided in the air duct. One or more sensors detect when the air filter is clogged. When air filter clogging is detected, a warning signal is triggered.