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Class Information
Number: 60/420
Name: Power plants > Pressure fluid source and motor > Having condition responsive control in a system of distinct or separately operable outputs or output drive units
Description: Apparatus having a plurality of separately operable motors, motor pistons, motor rotors or means delivering energy externally of the apparatus and including a control for the apparatus responsive to a condition of the system or to an external condition.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7614335 |
Hydraulic system with variable standby pressure |
Nov. 10, 2009 |
| 7506717 |
Hydraulically driven vehicle |
Mar. 24, 2009 |
| 7500535 |
Control device for construction machine |
Mar. 10, 2009 |
| 7281370 |
Fan revolution speed control method |
Oct. 16, 2007 |
| 7155907 |
Electro-hydraulic fan drive cooling and steering system for vehicle |
Jan. 2, 2007 |
| 7104053 |
Control method |
Sep. 12, 2006 |
| 7076896 |
Control for an operating arm of an earthmoving vehicle |
Jul. 18, 2006 |
| 7069673 |
Hybrid construction equipment power control apparatus |
Jul. 4, 2006 |
| 6981371 |
Control device for working machine |
Jan. 3, 2006 |
| 6912803 |
Failure detection device for hydraulic motor and hydraulic drive vehicle |
Jul. 5, 2005 |
| 6851207 |
Construction machinery |
Feb. 8, 2005 |
| 6820356 |
Hybrid powered construction equipment |
Nov. 23, 2004 |
| 6799424 |
Hydraulic circuit |
Oct. 5, 2004 |
| 6761027 |
Pressure-compensated hydraulic circuit with regeneration |
Jul. 13, 2004 |
| 6639211 |
Contrast-enhanced MRA including an effective zero-latency method of bolus detection |
Oct. 28, 2003 |
| 6618659 |
Boom/bucket hydraulic fluid sharing method |
Sep. 9, 2003 |
| 6496767 |
Constant groundspeed autoshift method and apparatus for maximizing fuel economy |
Dec. 17, 2002 |
| 6314997 |
Multiple valve apparatus |
Nov. 13, 2001 |
| 6282890 |
Hydraulic circuit for construction machines |
Sep. 4, 2001 |
| 6199307 |
Battery-powered working machine |
Mar. 13, 2001 |
| 6202014 |
Features of main control computer for a power machine |
Mar. 13, 2001 |
| 6023134 |
Power conversion system for bi-directional conversion between hydraulic power and electrical power |
Feb. 8, 2000 |
| 5966935 |
Power generating device |
Oct. 19, 1999 |
| 5913810 |
Position maintenance device for the shaft of a hydraulic cylinder |
Jun. 22, 1999 |
| 5913811 |
Battery-driven hydraulic excavator |
Jun. 22, 1999 |
| 5806312 |
Multiple hydraulic distributor device |
Sep. 15, 1998 |
| 5794920 |
Hydraulic winch assembly using a vehicle steering pump |
Aug. 18, 1998 |
| 5634773 |
Superhigh pressure control system |
Jun. 3, 1997 |
| 5560203 |
Transmission control system and method |
Oct. 1, 1996 |
| 5549361 |
Electronic-hydraulic brake boost using a power steering supply |
Aug. 27, 1996 |
| 5447027 |
Hydraulic drive system for hydraulic working machines |
Sep. 5, 1995 |
| 5422550 |
Control of multiple motors, including motorized pumping system and method |
Jun. 6, 1995 |
| 5394696 |
Hydraulic system |
Mar. 7, 1995 |
| 5392539 |
Hydraulic drive system for construction machine |
Feb. 28, 1995 |
| 5386697 |
Unit for controlling a plurality of hydraulic actuators |
Feb. 7, 1995 |
| 5325668 |
Method and apparatus for hydraulic pressing |
Jul. 5, 1994 |
| 5323687 |
Hydraulic circuit |
Jun. 28, 1994 |
| 5282363 |
Hydraulic circuit for running a crawler vehicle |
Feb. 1, 1994 |
| 5277027 |
Hydraulic drive system with pressure compensting valve |
Jan. 11, 1994 |
| 5251440 |
Control apparatus and method for automatically controlling a hydraulic system for heavy construction equipment |
Oct. 12, 1993 |
| 5245826 |
Vibration suppression apparatus for hydraulic system with improved accumulator filing circuit |
Sep. 21, 1993 |
| 5241821 |
Hydraulic system for a vehicle |
Sep. 7, 1993 |
| 5222426 |
Proportional distributor and control system for a plurality of hydraulic receivers incorporating a distributor of this kind for each receiver |
Jun. 29, 1993 |
| 5186000 |
Hydraulic drive system for construction machines |
Feb. 16, 1993 |
| 5182908 |
Control system for integrating a work attachment to a work vehicle |
Feb. 2, 1993 |
| 5168704 |
Gas turbine engine fuel and actuation pressure pumping system |
Dec. 8, 1992 |
| 5152143 |
Hydraulic drive system |
Oct. 6, 1992 |
| 5134853 |
Hydraulic drive system for construction machines |
Aug. 4, 1992 |
| 5127226 |
Hydraulic apparatus for industrial vehicle |
Jul. 7, 1992 |
| 5110175 |
Convertible with automatic window operation |
May. 5, 1992 |
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