Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Fluid pump and motor in one of plural paths to or from...
Reexamination Certificate
2001-02-22
2002-09-17
Estremsky, Sherry (Department: 3681)
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Fluid pump and motor in one of plural paths to or from...
C074S732100, C475S074000, C475S080000, C477S050000, C477S069000
Reexamination Certificate
active
06450912
ABSTRACT:
The present invention relates to a hydromechanical transmission having a continuously variable transmission ratio.
One object of the invention is to provide an improved transmission which allows the continuous variation of the transmission ratio over a wide range, both for positive values and for negative values of this ratio.
This and other objects are achieved according to the invention with a hydromechanical transmission having a continuously variable ratio the salient characteristics of which are defined in the annexed claim
1
.
REFERENCES:
patent: 5156577 (1992-10-01), Fredriksen et al.
patent: 5531304 (1996-07-01), Ishino et al.
patent: 5667452 (1997-09-01), Coutant
patent: 5820508 (1998-10-01), Konig et al.
patent: 5890981 (1999-04-01), Coutant et al.
patent: 6007444 (1999-12-01), Kinokami
patent: 6056657 (2000-05-01), Garnett
patent: 6080074 (2000-06-01), Ulbrich et al.
patent: 6203463 (2001-03-01), Casey et al.
patent: WO 96/09482 (1996-03-01), None
patent: WO 99/36285 (1999-07-01), None
Estremsky Sherry
Lewis Tisha D.
Same Deutz-Fahr S.p.A.
LandOfFree
Hydromechanical transmission having a continuously variable... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydromechanical transmission having a continuously variable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydromechanical transmission having a continuously variable... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2882687