Power plants – Pressure fluid source and motor – Having plural energy input means – pumps or diverse pump outlets
Reexamination Certificate
2008-05-06
2008-05-06
Lazo, Thomas E. (Department: 3745)
Power plants
Pressure fluid source and motor
Having plural energy input means, pumps or diverse pump outlets
C060S487000, C060S488000
Reexamination Certificate
active
07367185
ABSTRACT:
An embodiment of the present invention involves a zero turn drive apparatus. The zero turn drive apparatus has a housing, which has a first and a second end. The housing has a first end cap mounted on the first end of the housing, and a second end cap mounted on the second end of the housing. A hydraulic pump is rotatably mounted on each end cap, and each hydraulic pump is driven by a pump input shaft. A gear chamber is interposed between each pump. A power take off mechanism is engaged to the housing, and an output shaft extends from the power take off mechanism. An input shaft, which is engaged to each of the pump input shafts, extends into the power take off mechanism and is selectively engaged to the output shaft.
REFERENCES:
patent: 2875701 (1959-03-01), Ebert
patent: 2914219 (1959-11-01), Chlantelassa
patent: 3367105 (1968-02-01), Dowty
patent: 3486335 (1969-12-01), Kern et al.
patent: 4252508 (1981-02-01), Forster
patent: 4270408 (1981-06-01), Wagner
patent: 4819508 (1989-04-01), Yamaoka et al.
patent: 4893524 (1990-01-01), Ohashi et al.
patent: 4971535 (1990-11-01), Okada et al.
patent: 5040429 (1991-08-01), Del Castillo
patent: 5078222 (1992-01-01), Hauser et al.
patent: 5207060 (1993-05-01), Sheets
patent: 5304043 (1994-04-01), Shilling
patent: 5501578 (1996-03-01), Skirde
patent: 5542307 (1996-08-01), Hasegawa et al.
patent: 5800134 (1998-09-01), Hasegawa et al.
patent: 6199380 (2001-03-01), Ishii
patent: 6301885 (2001-10-01), Johnson et al.
patent: 6332393 (2001-12-01), Trimble
patent: 6361282 (2002-03-01), Wanschura
patent: 6363815 (2002-04-01), Ishimaru et al.
patent: 6382339 (2002-05-01), Nemoto
patent: 6425244 (2002-07-01), Ohashi et al.
patent: 6457560 (2002-10-01), Evans et al.
patent: 6487856 (2002-12-01), Ohashi et al.
patent: 6494686 (2002-12-01), Ward
patent: 6672058 (2004-01-01), Langenfeld et al.
patent: 6672843 (2004-01-01), Holder et al.
patent: 6705840 (2004-03-01), Hauser et al.
patent: 6736605 (2004-05-01), Ohashi et al.
patent: 6877302 (2005-04-01), Samejima et al.
patent: 6953327 (2005-10-01), Hauser et al.
patent: 6960069 (2005-11-01), Maruta et al.
patent: 6971233 (2005-12-01), Holder
patent: 6973783 (2005-12-01), Hauser et al.
patent: 6988580 (2006-01-01), Ohashi et al.
patent: 7028472 (2006-04-01), Ohashi et al.
patent: 2004/0200657 (2004-10-01), Stoll et al.
patent: 2004/0237490 (2004-12-01), Yasuda et al.
patent: 2005/0016304 (2005-01-01), Ishii et al.
patent: 1473183 (2004-03-01), None
patent: 2000009023 (2000-11-01), None
patent: 2001-146951 (2001-05-01), None
patent: 2001-263259 (2001-09-01), None
patent: WO99/67532 (1999-12-01), None
Dixie Chopper, Operation Manual 1998, Cover Page and pp. 50-51, 60-61, 66, Revision #5 Feb. 1998.
Holder Lonnie E.
Keller Scott W.
McCoy K. Mike
Hydro-Gear Limited Partnership
Lazo Thomas E.
Neal Gerber & Eisenberg LLP
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