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Class Information
Number: 60/429
Name: Power plants > Pressure fluid source and motor > Having condition responsive control in a system of separately operable power input pumps, pump motors, pump cylinders or pressure fluid sources > With externally operated multiway valve changing the relationships of the motive fluid pressurizing or supplying means
Description: Apparatus including a multiway valve that is externally manipulated to provide different operative relationships of the pressurizing means or pressure sources.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7412826 |
Hydraulic system for work vehicle |
Aug. 19, 2008 |
| 7331175 |
Hydraulic system having area controlled bypass |
Feb. 19, 2008 |
| 7178333 |
Hydraulic control system for hydraulic excavator |
Feb. 20, 2007 |
| 7155908 |
Hydraulic system for heavy equipment option apparatus |
Jan. 2, 2007 |
| 7150288 |
Control valve apparatus |
Dec. 19, 2006 |
| 7059124 |
Hydraulic control apparatus for work machines |
Jun. 13, 2006 |
| 7017703 |
Four wheel traction control valve |
Mar. 28, 2006 |
| 6892535 |
Hydraulic circuit for boom cylinder combination having float function |
May. 17, 2005 |
| 6868671 |
Hydraulic circuit for a crane |
Mar. 22, 2005 |
| 6810663 |
Fluid pressure circuit control system |
Nov. 2, 2004 |
| 6772589 |
Hydraulic system with variable fluid flow under pressure to fluid-operated consumers |
Aug. 10, 2004 |
| 6764126 |
Hydraulic actuating device for a cover with associated lock |
Jul. 20, 2004 |
| 6708490 |
Hydraulic system for construction machine |
Mar. 23, 2004 |
| 6681571 |
Digital controlled fluid translating device |
Jan. 27, 2004 |
| 6658972 |
Full force web severer |
Dec. 9, 2003 |
| 6612109 |
Hydraulic power boost system for a work vehicle |
Sep. 2, 2003 |
| 6508503 |
Hydraulic actuating device for a folding roof of a motor vehicle |
Jan. 21, 2003 |
| 6357231 |
Hydraulic pump circuit for mini excavators |
Mar. 19, 2002 |
| 6244048 |
Hydraulique drive device |
Jun. 12, 2001 |
| 6170261 |
Hydraulic fluid supply system |
Jan. 9, 2001 |
| 6164069 |
Hydraulic drive system for construction machine |
Dec. 26, 2000 |
| 6148548 |
Construction machine |
Nov. 21, 2000 |
| 6149221 |
Hydraulic control unit, in particular for operating a folding roof of a vehicle |
Nov. 21, 2000 |
| 6145287 |
Hydrostatic circuit for harvesting machine |
Nov. 14, 2000 |
| 6128900 |
Hydraulic fluid supply system |
Oct. 10, 2000 |
| 6018895 |
Valve stack in a mini-excavator directing fluid under pressure from multiple pumps to actuable elements |
Feb. 1, 2000 |
| 5996341 |
Hydraulic control circuit in a hydraulic excavator |
Dec. 7, 1999 |
| 5992721 |
Rodless cylinder rope tensioning apparatus |
Nov. 30, 1999 |
| 5970709 |
Hydraulic control circuit in a hydraulic excavator |
Oct. 26, 1999 |
| 5950428 |
Apparatus for improving the operating capability of a construction machine during a fine operation mode and method for the same |
Sep. 14, 1999 |
| 5950426 |
Hydraulic circuit for hydraulic machine |
Sep. 14, 1999 |
| 5946910 |
Hydraulic circuit for hydraulically driven working vehicle |
Sep. 7, 1999 |
| 5890303 |
Hydraulic by-pass circuit for a hydraulic shovel |
Apr. 6, 1999 |
| 5865086 |
Thermo-hydro-dynamic system |
Feb. 2, 1999 |
| 5852934 |
Fluid joining device for power construction vehicles |
Dec. 29, 1998 |
| 5832729 |
Hydraulic control system |
Nov. 10, 1998 |
| 5829252 |
Hydraulic system having tandem hydraulic function |
Nov. 3, 1998 |
| 5692377 |
Apparatus for controlling lifting operation |
Dec. 2, 1997 |
| 5634334 |
Hydraulic device for use in a production machine |
Jun. 3, 1997 |
| 5289680 |
Two pump hydraulic system with relief valves having different relief pressures |
Mar. 1, 1994 |
| 5271227 |
Hydraulic apparatus with pressure compensating valves |
Dec. 21, 1993 |
| 5261232 |
Valve system for supplying fluid from a pair of fluid pressure sources to a load |
Nov. 16, 1993 |
| 5148676 |
Confluence valve circuit of a hydraulic excavator |
Sep. 22, 1992 |
| 5101627 |
Adjustable flow-combining restrictor for hydraulic excavator dual pump circuit |
Apr. 7, 1992 |
| 5083428 |
Fluid control system for power shovel |
Jan. 28, 1992 |
| 5048292 |
Dual pump traverse and feed system |
Sep. 17, 1991 |
| 5016440 |
Apparatus for delivering a controllable variable flow of pressurized fluid |
May. 21, 1991 |
| 4838756 |
Hydraulic system for an industrial machine |
Jun. 13, 1989 |
| 4779416 |
Control system for front end loader boom and bucket operating systems |
Oct. 25, 1988 |
| 4761953 |
Hydraulic elevator mechanism |
Aug. 9, 1988 |
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