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Load sensing elements sliding within a hollow main valve spool

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  • CPC
  • F15B13/0418
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FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F15Hydraulics devices F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL FLUID-PRESSURE ACTUATORS F15B13/00Details of servomotor systems ; Valves for servomotor systems

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F15B13/0418Load sensing elements sliding within a hollow main valve spool
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Patents Grantslast 30 patents

  • Information Patent Grant

    Control valve compensation system
    • Patent number 10,989,232
    • Issue date Apr 27, 2021
    • Rost Innovation LLC
    • Alvin Stanley Rost
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Control valve compensation system
    • Patent number 10,385,884
    • Issue date Aug 20, 2019
    • Rost Innovation LLC
    • Alvin Stanley Rost
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Pressure limited flow priority boost
    • Patent number 9,810,334
    • Issue date Nov 7, 2017
    • Parker-Hannifin Corporation
    • Gregory T. Coolidge
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic sectional control valve with multiple relief slots
    • Patent number 9,683,586
    • Issue date Jun 20, 2017
    • Parker-Hannifin Corporation
    • Gregory Coolidge
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Flow control valve for construction machine
    • Patent number 9,103,355
    • Issue date Aug 11, 2015
    • VOLVO CONSTRUCTION EQUIPMENT AB
    • Bon-Seuk Ku
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic valve device
    • Patent number 8,479,769
    • Issue date Jul 9, 2013
    • HYDAC FILTERTECHNIK GMBH
    • Winfried Rüb
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic controller arrangement
    • Patent number 7,603,940
    • Issue date Oct 20, 2009
    • Bosch Rexroth AG
    • Armin Stellwagen
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Anti-saturation directional control valve composed of two or more s...
    • Patent number 7,182,097
    • Issue date Feb 27, 2007
    • Walvoil S.p.A.
    • Ulderico Busani
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Control valve
    • Patent number 7,100,639
    • Issue date Sep 5, 2006
    • Bucher Hydraulics GmbH
    • Winfried Rüb
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Directional control valve comprising an internal pressure regulator
    • Patent number 6,860,291
    • Issue date Mar 1, 2005
    • Bucher Hydraulics GmbH
    • Winfried Rüb
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Method and control device for controlling a hydraulic consumer
    • Patent number 6,516,614
    • Issue date Feb 11, 2003
    • Bosch Rexroth AG
    • Burkhard Knoll
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Directional control valve device
    • Patent number 6,327,959
    • Issue date Dec 11, 2001
    • Hitachi Construction Machinery
    • Kinya Takahashi
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Control valve
    • Patent number 6,148,856
    • Issue date Nov 21, 2000
    • Linde Aktiengesellschaft
    • Walter Kropp
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Directional control valve assembly having a pressure compensation v...
    • Patent number 5,778,929
    • Issue date Jul 14, 1998
    • Komatsu Ltd.
    • Naoki Ishizaki
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Control valve for prime mover speed control in hydraulic systems
    • Patent number 5,664,417
    • Issue date Sep 9, 1997
    • HUSCO International, Inc.
    • Raud A. Wilke
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Load sensing proportional pressure control valve
    • Patent number 5,577,534
    • Issue date Nov 26, 1996
    • Applied Power Inc.
    • James R. Ward
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic circuit system for civil engineering and construction mac...
    • Patent number 5,446,979
    • Issue date Sep 5, 1995
    • Hitachi Construction Machinery Co., Ltd.
    • Genroku Sugiyama
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Multiway valves with load feedback
    • Patent number 4,738,279
    • Issue date Apr 19, 1988
    • Linde Aktiengesellschaft
    • Walter Kropp
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Slide valve for load sensing control in a hydraulic system
    • Patent number 4,719,753
    • Issue date Jan 19, 1988
    • Linde Aktiengesellschaft
    • Walter Kropp
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydrostatic drive systems
    • Patent number 4,617,798
    • Issue date Oct 21, 1986
    • Linde Aktiengesellschaft
    • Alfred Krusche
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    High pressure hydraulic distributor
    • Patent number 4,610,271
    • Issue date Sep 9, 1986
    • Vickers Systems S.A.
    • Clifford J. Balmer
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Hydraulic distributors
    • Patent number 4,520,845
    • Issue date Jun 4, 1985
    • Rexroth-Sigma
    • Olivier Isaac
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Compensated work port fluid valves
    • Patent number 4,187,877
    • Issue date Feb 12, 1980
    • Commercial Shearing Inc.
    • Robert F. Hodgson
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Pressure compensated control valve
    • Patent number 4,117,862
    • Issue date Oct 3, 1978
    • Tomco, Inc.
    • Azam S. Qureshi
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Control valves
    • Patent number 4,095,617
    • Issue date Jun 20, 1978
    • Commercial Shearing, Inc.
    • Robert F. Hodgson
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Pressure compensating valve spool assembly for a hydraulic control...
    • Patent number 3,985,153
    • Issue date Oct 12, 1976
    • Tomco, Inc.
    • Vitas T. Thomas
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    3910311
    • Patent number 3,910,311
    • Issue date Oct 7, 1975
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    3415265
    • Patent number 3,415,265
    • Issue date Dec 10, 1968
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    3186424
    • Patent number 3,186,424
    • Issue date Jun 1, 1965
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    3136328
    • Patent number 3,136,328
    • Issue date Jun 9, 1964
    • G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents