Small watercraft

Details Small watercraft Small watercraft

2005-10-18

2005-10-18

Wright, Andrew D. (Department: 3617)

Marine propulsion

Means for accomodating or moving engine fluids

Cooling for engine

C123S572000

Reexamination Certificate

active

06955573

ABSTRACT:
A small watercraft including an engine mounted in a body such that an axial direction of a crankshaft corresponds with a longitudinal direction of the body, an oil tank provided such that a longitudinal direction thereof corresponds with the axial direction of the crankshaft, a first communicating port and a second communicating port formed in the oil tank at least two positions spaced apart from each other in the longitudinal direction, a gas-release chamber having a third communicating port and a fourth communicating port provided at two positions spaced apart from each other, and at least one fifth communicating port located to communicate with an ambient side, the gas-release chamber having a bottom face located higher than a liquid level of oil inside the oil tank, wherein the first communicating port communicates with the third communicating port and the second communicating port communicates with the fourth communicating port.

REFERENCES:
patent: 2671893 (1954-03-01), Van Scoy et al.
patent: 4674457 (1987-06-01), Berger et al.
patent: 4856486 (1989-08-01), Mori et al.
patent: 5951343 (1999-09-01), Nanami et al.
patent: 6190221 (2001-02-01), Nanami
patent: 6491556 (2002-12-01), Muramatsu et al.
patent: 6520164 (2003-02-01), Lepp et al.
patent: 6695658 (2004-02-01), Muramatsu

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