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Class Information
Number: 60/486
Name: Power plants > Pressure fluid source and motor > Having plural energy input means, pumps or diverse pump outlets
Description: Apparatus in which (1) there are plural pressure sources, (2) in which the pressure source includes separately operable pump means; or (3) a pump means driven by separately operable energy input devices.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7597168 |
Low engine speed steering performance |
Oct. 6, 2009 |
| 7594395 |
Hydraulic control device for working machine |
Sep. 29, 2009 |
| 7581392 |
Straight traveling hydraulic circuit |
Sep. 1, 2009 |
| 7565801 |
Swing drive device and work machine |
Jul. 28, 2009 |
| 7566207 |
Dual pump transmission |
Jul. 28, 2009 |
| 7565802 |
High pressure pressing device and a method |
Jul. 28, 2009 |
| 7546730 |
Hydraulic vehicle stabilizer system with two-stage bi-rotational hydraulic pump system |
Jun. 16, 2009 |
| 7536857 |
Zero turn drive apparatus |
May. 26, 2009 |
| 7520131 |
Pump unit |
Apr. 21, 2009 |
| 7500360 |
Hydraulic driving system of construction machinery |
Mar. 10, 2009 |
| 7418819 |
Pump unit |
Sep. 2, 2008 |
| 7412827 |
Multi-pump control system and method |
Aug. 19, 2008 |
| 7409829 |
Pump unit |
Aug. 12, 2008 |
| 7392654 |
Zero turn drive apparatus |
Jul. 1, 2008 |
| 7386978 |
Method for controlling a hydraulic system of a mobile working machine |
Jun. 17, 2008 |
| 7377106 |
Pump system |
May. 27, 2008 |
| 7377105 |
Dual pump assembly |
May. 27, 2008 |
| 7370476 |
Pump system, charge relief mechanism and oil pressure control mechanism |
May. 13, 2008 |
| 7370569 |
Hydraulic drive |
May. 13, 2008 |
| 7367185 |
Zero turn drive apparatus with power take off |
May. 6, 2008 |
| 7353651 |
De-stroking dual hydrostatic pump |
Apr. 8, 2008 |
| 7350353 |
Hydraulic circuit |
Apr. 1, 2008 |
| 7347047 |
Pump assembly |
Mar. 25, 2008 |
| 7334404 |
Pump unit |
Feb. 26, 2008 |
| 7328576 |
Zero turn transaxle |
Feb. 12, 2008 |
| 7316111 |
Multi-purpose hydraulic system |
Jan. 8, 2008 |
| 7278261 |
Pump apparatus |
Oct. 9, 2007 |
| 7257948 |
Dual pump apparatus |
Aug. 21, 2007 |
| 7185577 |
Tandem pump unit |
Mar. 6, 2007 |
| 7174711 |
Hydraulic control system and construction machine |
Feb. 13, 2007 |
| 7171808 |
Hydraulic power supply system |
Feb. 6, 2007 |
| 7165396 |
Pump control override for tandem pumps |
Jan. 23, 2007 |
| 7162870 |
Pump assembly |
Jan. 16, 2007 |
| 7162871 |
Pump unit |
Jan. 16, 2007 |
| 7146810 |
Pump assembly |
Dec. 12, 2006 |
| 7137250 |
Zero turn drive apparatus with power take off |
Nov. 21, 2006 |
| 7131268 |
Pump unit |
Nov. 7, 2006 |
| 7127887 |
Oil pressure circuit for working machines |
Oct. 31, 2006 |
| 7121091 |
Pump unit |
Oct. 17, 2006 |
| 7111459 |
Zero turn hydrostatic transmission bypass linkage |
Sep. 26, 2006 |
| 7076948 |
Hydraulic continuously variable transmission |
Jul. 18, 2006 |
| 7073329 |
Multi-stage oil pumping station |
Jul. 11, 2006 |
| 7028472 |
Pump unit |
Apr. 18, 2006 |
| 6996979 |
Hydraulic circuit for a hydraulic excavator |
Feb. 14, 2006 |
| 6990807 |
Auxiliary hydraulic drive system |
Jan. 31, 2006 |
| 6981850 |
Apparatus and method for producing a pressurized vapor stream |
Jan. 3, 2006 |
| 6973783 |
Zero turn drive apparatus |
Dec. 13, 2005 |
| 6971233 |
Pump apparatus |
Dec. 6, 2005 |
| 6962050 |
Hybrid machine with hydraulic drive device |
Nov. 8, 2005 |
| 6953327 |
Dual pump |
Oct. 11, 2005 |
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