Hydraulic apparatus with return to neutral mechanism

Power plants – Pressure fluid source and motor – Input pump and rotary output motor system having...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C092S091000, C092S012200

Reexamination Certificate

active

07340890

ABSTRACT:
A control mechanism for a hydraulic drive apparatus such as a transaxle having a hydraulic pump and moveable swash plate mounted in a housing including a control arm for moving the swash plate between forward and reverse positions and a unidirectional return to neutral mechanism for biasing and returning the swash plate to a neutral position when the control arm is in one of the reverse or forward positions but not from the other position.

REFERENCES:
patent: 3354981 (1967-11-01), Swanson et al.
patent: 3541878 (1970-11-01), Haffner
patent: 3765258 (1973-10-01), Jespersen
patent: 3792744 (1974-02-01), Gray
patent: 3837235 (1974-09-01), Peterson
patent: 4018104 (1977-04-01), Bland et al.
patent: 4109540 (1978-08-01), Habiger
patent: 4111062 (1978-09-01), Callaghan
patent: 4167855 (1979-09-01), Knapp
patent: 4352302 (1982-10-01), McAuliffe et al.
patent: 4375771 (1983-03-01), Kobelt
patent: 4438660 (1984-03-01), Kittle
patent: 4600075 (1986-07-01), Heidner et al.
patent: 4606428 (1986-08-01), Giere
patent: 4845949 (1989-07-01), Shivvers et al.
patent: 4856368 (1989-08-01), Fujisaki et al.
patent: 4870820 (1989-10-01), Nemoto
patent: 4899541 (1990-02-01), Okada et al.
patent: 4905472 (1990-03-01), Okada
patent: 4914907 (1990-04-01), Okada
patent: 4934252 (1990-06-01), Giere
patent: 4955249 (1990-09-01), Wetor
patent: 4986073 (1991-01-01), Okada
patent: 5042252 (1991-08-01), Havens et al.
patent: 5044478 (1991-09-01), Kaesgen et al.
patent: 5074195 (1991-12-01), Ohashi et al.
patent: 5078222 (1992-01-01), Hauser et al.
patent: 5094077 (1992-03-01), Okada
patent: 5094326 (1992-03-01), Schemelin et al.
patent: 5136845 (1992-08-01), Woodley
patent: 5146748 (1992-09-01), Okada
patent: 5163293 (1992-11-01), Azuma et al.
patent: 5182966 (1993-02-01), von Kaler et al.
patent: 5201692 (1993-04-01), Johnson et al.
patent: 5289738 (1994-03-01), Szulczewski
patent: 5311740 (1994-05-01), Shiba et al.
patent: 5314387 (1994-05-01), Hauser et al.
patent: 5333451 (1994-08-01), Sakikawa et al.
patent: 5339631 (1994-08-01), Ohashi
patent: 5373697 (1994-12-01), Jolliff et al.
patent: 5383376 (1995-01-01), Thorman et al.
patent: 5427216 (1995-06-01), Hoch
patent: 5440951 (1995-08-01), Okada et al.
patent: 5546752 (1996-08-01), Horton et al.
patent: 5555727 (1996-09-01), Hauser et al.
patent: 5588294 (1996-12-01), Sakakura et al.
patent: 5622051 (1997-04-01), Iida et al.
patent: 5771758 (1998-06-01), Hauser
patent: 5794443 (1998-08-01), Shimizu
patent: 5819537 (1998-10-01), Okada et al.
patent: 5836159 (1998-11-01), Shimizu et al.
patent: 5842532 (1998-12-01), Fox et al.
patent: 5860884 (1999-01-01), Jolliff
patent: 5918691 (1999-07-01), Ishii
patent: 6010423 (2000-01-01), Jolliff et al.
patent: 6122996 (2000-09-01), Hauser et al.
patent: 6125630 (2000-10-01), Abend et al.
patent: 6152247 (2000-11-01), Sporrer et al.
patent: 6272854 (2001-08-01), Ishii et al.
patent: 6314730 (2001-11-01), Shimizu
Technical Information Manual for Series 40 Pumps, SPV40E, Rev. Apr. 1997.
Eaton, Hydrostatic Transaxles, Catalog, 11-888, Aug. 1991.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Hydraulic apparatus with return to neutral mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic apparatus with return to neutral mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic apparatus with return to neutral mechanism will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2794086

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.