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Browse by Category: Main > Electrical & Energy
Class Information
Number: 60/328
Name: Power plants > Pressure fluid source and motor > Having a signal, indicator or inspection means
Description: Apparatus having (1) signals, indicator, registers, recorders, or gauges for indicating a condition or the position of a motor or pump part such as a piston, control member, valve etc., such devices consisting of a relatively movable, changeable or audible information giving parts, or (2) transparent viewing means whereby the motor or pump operation or the condition of some part thereof may be observed.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8689548 Power system for vehicle and vehicle having the power system Apr. 8, 2014
8561397 Leakage detection system in a wind turbine Oct. 22, 2013
8453441 System and method for pump-controlled cylinder cushioning Jun. 4, 2013
8438843 Hydraulic system of work machine May. 14, 2013
8387289 Hydraulic circuit system for hydraulic excavator Mar. 5, 2013
8359849 Control of a fluid circuit using an estimated sensor value Jan. 29, 2013
8261543 Working vehicle with HST Sep. 11, 2012
8136353 Method and apparatus for automatic pump shutoff Mar. 20, 2012
8136892 Method and booster which are intended to detect the braking of a vehicle, and method of producing such a booster Mar. 20, 2012
7810321 Relief pressure switching apparatus for hydraulic working machine Oct. 12, 2010
7665298 Low voltage hydraulic system with electronic control for moving automatic closing apparatuses Feb. 23, 2010
7658066 Actuation device Feb. 9, 2010
7546729 Method and system for limiting torque load associated with an implement Jun. 16, 2009
7478530 Hydraulic circuit for working machine Jan. 20, 2009
7469537 Hydraulic transaxle and hydraulically driven vehicle Dec. 30, 2008
7458311 Return to neutral for dual hydrostatic transmission Dec. 2, 2008
7310943 Hydrostatic transmission controls with alternative operating modes Dec. 25, 2007
7240487 Throttle potentiometer adapter Jul. 10, 2007
7234300 Fastener and valve for a hydraulic apparatus Jun. 26, 2007
7204083 Hydraulic actuating device for a convertible top assembly of a vehicle Apr. 17, 2007
7133758 Neutral start interlock Nov. 7, 2006
7111457 Diagnostic system for a hydrostatic transmission or transaxle Sep. 26, 2006
6973779 Hydraulic power system for agricultural implement including flow-rate indicator Dec. 13, 2005
6799424 Hydraulic circuit Oct. 5, 2004
6625980 Overpressure control circuit for vehicle pneumatic system Sep. 30, 2003
6615581 Hydraulic oil flow controller for construction machine Sep. 9, 2003
6539710 Hydrostatic steering system having improved steering sensing Apr. 1, 2003
6499295 Hydro-transformer Dec. 31, 2002
6092370 Apparatus and method for diagnosing the status of specific components in high-pressure fluid pumps Jul. 25, 2000
5865086 Thermo-hydro-dynamic system Feb. 2, 1999
5796343 Device and method for preventing damage to goods during handling by material handling equipment Aug. 18, 1998
5787787 Engine/pump control device for loaders Aug. 4, 1998
5692376 Control circuit for a construction machine Dec. 2, 1997
5660041 Process for adjusting the characteristics of infinitely variable transmissions of a vehicle Aug. 26, 1997
5634334 Hydraulic device for use in a production machine Jun. 3, 1997
5493861 Hydraulic system with pump and load Feb. 27, 1996
5452579 Hydraulic system with pump and load Sep. 26, 1995
5287699 Automatic vibration method and device for hydraulic drilling machine Feb. 22, 1994
5123244 Differential pressure measuring device with position detector means Jun. 23, 1992
5085468 Vehicle storage tank headboard Feb. 4, 1992
5036659 Swash plate type pump with flow path through cavity containing swash plate Aug. 6, 1991
4757684 Fail-safe electric actuator Jul. 19, 1988
4745743 Hydraulic fluid supply assembly May. 24, 1988
4698968 Pumping unit Oct. 13, 1987
4683718 Method and apparatus for monitoring hydro turbine plants Aug. 4, 1987
4655039 Lift system Apr. 7, 1987
4531365 Neutral start for hydrostatic transmission Jul. 30, 1985
4489551 Failure detection system for hydraulic pump Dec. 25, 1984
4476677 Hydraulic supply circuit for vehicle steering system Oct. 16, 1984
4326558 Steering system including accumulator for supplying emergency reserve of fluid Apr. 27, 1982

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