Machine element or mechanism – Elements – Gear casings
Reexamination Certificate
2008-03-18
2008-03-18
Fenstermacher, David M. (Department: 3682)
Machine element or mechanism
Elements
Gear casings
C074S60600R, C123S516000, C184S006210, C184S006240
Reexamination Certificate
active
10848700
ABSTRACT:
A breather apparatus of a crankcase, in which lubricating oil is circulated with economy of space and efficiently, is provided. An opening is formed in the top of a vertical wall of a case body, and a breather hole is formed in the top of an outer circumferential wall of the case body. A lubricating-oil return port is formed in the bottom of the vertical wall of the case body, and a breather path communicating with the opening and the lubricating-oil return port is provided between the case body and a power-generator case used as a wall body attached thereto, and an air-breather path branching from the breather path and communicating with the breather hole is provided in the case body. When an oil-component mixed gas flowing through the opening to the outside of the case body hits an inner surface of the breather path, an oil component of the oil-component mixed gas is liquefied and flows into the lubricating-oil return port.
REFERENCES:
patent: 2002/0040706 (2002-04-01), Katayama et al.
patent: 2003/0000504 (2003-01-01), Katayama et al.
patent: 0 926 319 (1998-11-01), None
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patent: 08-218842 (1996-08-01), None
patent: 2001-065326 (2001-03-01), None
patent: 2001-329827 (2001-11-01), None
patent: 2002-256838 (2002-09-01), None
Canadian Office Action dated Jul. 31, 2006.
Fenstermacher David M.
Fuji Jukogyo Kabushiki Kaisha
Smith , Gambrell & Russell, LLP
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