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Class Information
Number: 60/464
Name: Power plants > Pressure fluid source and motor > Condition responsive control of motive fluid flow > Of motive fluid transfer between a reservoir and a recirculating path of a pump motor loop
Description: Apparatus in which condition responsive structure controls the supply of motive fluid to or its discharge from a recirculating system made up of a pump, a motor and interconnecting flow lines; the transferred motive fluid being taken from or supplied to a reservoir out of the recirculating path.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7607298 |
Hydrostatic drive |
Oct. 27, 2009 |
| 7543449 |
Hydraulic system for linear drives controlled by a displacer element |
Jun. 9, 2009 |
| 7523609 |
Hydrostatic transmission |
Apr. 28, 2009 |
| 7516613 |
Hydraulic drive system |
Apr. 14, 2009 |
| 7506717 |
Hydraulically driven vehicle |
Mar. 24, 2009 |
| 7430861 |
Shift controlled bypass orifice for hydrostatic transmission |
Oct. 7, 2008 |
| 7430860 |
Hydrostatic transmission circuit |
Oct. 7, 2008 |
| 7406824 |
Hydrostatic transmission circuit with replenishing for a vehicle |
Aug. 5, 2008 |
| 7401466 |
Hydraulic drive, in particular for two-cylinder thick matter pumps |
Jul. 22, 2008 |
| 7302799 |
Drive system for a vehicle |
Dec. 4, 2007 |
| 7302798 |
Hydraulic system, reservoir and pump suction enhancer for motor vehicle |
Dec. 4, 2007 |
| 7231764 |
Exchange and/or scavenging device for a circuit comprising at least one hydraulic motor |
Jun. 19, 2007 |
| 7225617 |
Bypass mechanism for a hydraulic drive apparatus |
Jun. 5, 2007 |
| 7185577 |
Tandem pump unit |
Mar. 6, 2007 |
| 7127889 |
Zero turn transaxle |
Oct. 31, 2006 |
| 7111458 |
Electrical loop flushing system |
Sep. 26, 2006 |
| RE39158 |
Hydraulic system, manifold and volumetric compensator |
Jul. 11, 2006 |
| 7047736 |
Zero turn transaxle |
May. 23, 2006 |
| 7043906 |
Hydraulic equipment |
May. 16, 2006 |
| 7028471 |
Hydrostatic transmission |
Apr. 18, 2006 |
| 7000387 |
Hydraulic spool valve for use in a hydraulic vehicle drive |
Feb. 21, 2006 |
| 6993904 |
Integrated valve system |
Feb. 7, 2006 |
| 6966181 |
Hydrostatic transmission |
Nov. 22, 2005 |
| 6964163 |
Dual check-relief valve |
Nov. 15, 2005 |
| 6955045 |
Oil pump system |
Oct. 18, 2005 |
| 6938414 |
Hydraulic powered arm system with float control |
Sep. 6, 2005 |
| 6843056 |
Zero turn transaxle |
Jan. 18, 2005 |
| 6837047 |
Hydraulic devices for smooth operations of hydrostatic transmission |
Jan. 4, 2005 |
| 6817177 |
Replenishing device for a closed circuit |
Nov. 16, 2004 |
| 6802182 |
Tapping circuit including a tapping valve for replenishing and/or flushing the casing of a hydraulic motor |
Oct. 12, 2004 |
| 6755018 |
Leakage oil return apparatus for a hydraulic motor |
Jun. 29, 2004 |
| 6748738 |
Hydraulic regeneration system |
Jun. 15, 2004 |
| 6739127 |
Hydraulic system pump charging and recirculation apparatus |
May. 25, 2004 |
| 6736605 |
Tandem pump unit |
May. 18, 2004 |
| 6698197 |
Hydraulically actuated by-pass valve |
Mar. 2, 2004 |
| 6691511 |
Filter for hydrostatic transmission |
Feb. 17, 2004 |
| 6666655 |
Hydraulic pump nozzle and method of use |
Dec. 23, 2003 |
| 6581378 |
Valve device for hydraulic engine for driving a large flywheel mass |
Jun. 24, 2003 |
| 6530218 |
Hydrostatic continuously variable transmission |
Mar. 11, 2003 |
| 6523344 |
Hydraulic switching apparatus |
Feb. 25, 2003 |
| 6508059 |
Hydrostatic transmission |
Jan. 21, 2003 |
| 6487856 |
Tandem pump unit |
Dec. 3, 2002 |
| 6481202 |
Hydraulic system for boom hoist cylinder crane |
Nov. 19, 2002 |
| 6430923 |
Loop flushing circuit |
Aug. 13, 2002 |
| 6425244 |
Pump unit |
Jul. 30, 2002 |
| 6367248 |
Active hydraulic control pressure system for adverse "G" flight conditions |
Apr. 9, 2002 |
| 6339928 |
System for controlling a hydraulic propulsion drive |
Jan. 22, 2002 |
| 6332317 |
Bypass for hydrostatic transmission |
Dec. 25, 2001 |
| 6282890 |
Hydraulic circuit for construction machines |
Sep. 4, 2001 |
| 6279317 |
Hydrostatic drive with regeneration circuit |
Aug. 28, 2001 |
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