TREA

Lawrence F. Schexnayder

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  • Morris, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ride control
    • Patent number 6,321,534
    • Issue date Nov 27, 2001
    • Caterpillar Inc.
    • Michael A. A'Hearn
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Poppet valve with force feedback control
    • Patent number 5,421,545
    • Issue date Jun 6, 1995
    • Caterpillar Inc.
    • Lawrence F. Schexnayder
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Fluid regeneration circuit
    • Patent number 5,220,862
    • Issue date Jun 22, 1993
    • Caterpillar Inc.
    • Lawrence F. Schexnayder
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic control system having poppet and spool type valves
    • Patent number 5,207,059
    • Issue date May 4, 1993
    • Caterpillar Inc.
    • Lawrence F. Schexnayder
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Pressure compensated flow amplifying poppet valve
    • Patent number 5,137,254
    • Issue date Aug 11, 1992
    • Caterpillar Inc.
    • James A. Aardema
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic swing motor control circuit
    • Patent number 4,586,332
    • Issue date May 6, 1986
    • Caterpillar Tractor Co.
    • Lawrence F. Schexnayder
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Maintaining hydrostatic system control pressure
    • Patent number 4,425,758
    • Issue date Jan 17, 1984
    • Caterpillar Tractor Co.
    • Lawrence F. Schexnayder
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
  • Information Patent Grant

    Hydrostatic transmission having an overspeed control
    • Patent number 4,365,473
    • Issue date Dec 28, 1982
    • Caterpillar Tractor Co.
    • Lawrence F. Schexnayder
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Hydraulic rock breaker circuit for an excavator
    • Patent number 4,230,022
    • Issue date Oct 28, 1980
    • Caterpillar Tractor Co.
    • Donald L. Bianchetta
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Dual source hydraulic steering system
    • Patent number 4,142,842
    • Issue date Mar 6, 1979
    • Caterpillar Tractor Co.
    • Leon E. Hicks
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Sealing arrangement for brake housing
    • Patent number 4,105,214
    • Issue date Aug 8, 1978
    • Caterpillar Tractor Co.
    • Lawrence F. Schexnayder
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Load check and bypass valve
    • Patent number 4,102,250
    • Issue date Jul 25, 1978
    • Caterpillar Tractor Co.
    • Lawrence F. Schexnayder
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Fluid system having load pressure equalizing valve assemblies
    • Patent number 4,094,228
    • Issue date Jun 13, 1978
    • Caterpillar Tractor Co.
    • Lawrence F. Schexnayder
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Brake cooling circuit
    • Patent number 4,083,469
    • Issue date Apr 11, 1978
    • Caterpillar Tractor Co.
    • Lawrence Francis Schexnayder
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Control system having override for fluid operated work elements
    • Patent number 4,055,046
    • Issue date Oct 25, 1977
    • Caterpillar Tractor Co.
    • Lawrence F. Schexnayder
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Control valve providing two speed operation for a motor
    • Patent number 4,024,798
    • Issue date May 24, 1977
    • Caterpillar Tractor Co.
    • Lawrence F. Schexnayder
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Throttling slot configuration for a valve spool
    • Patent number 4,009,864
    • Issue date Mar 1, 1977
    • Caterpillar Tractor Co.
    • Lawrence F. Schexnayder
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Air pressure modulated brake valve system
    • Patent number 4,006,939
    • Issue date Feb 8, 1977
    • Caterpillar Tractor Co.
    • Lawrence Francis Schexnayder
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Hydraulic load lifting system
    • Patent number 4,000,683
    • Issue date Jan 4, 1977
    • Caterpillar Tractor Co.
    • Lawrence F. Schexnayder
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic circuit
    • Patent number 3,966,066
    • Issue date Jun 29, 1976
    • Caterpillar Tractor Co.
    • Lawrence F. Schexnayder
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Fast exhaust circuit for hydraulic jacks
    • Patent number 3,960,059
    • Issue date Jun 1, 1976
    • Caterpillar Tractor Co.
    • Lawrence F. Schexnayder
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Brake cooling system with a common fluid mixing chamber
    • Patent number 3,949,844
    • Issue date Apr 13, 1976
    • Caterpillar Tractor Co.
    • Donald J. Larson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Contaminant removal from a hydraulic cylinder
    • Patent number 3,943,717
    • Issue date Mar 16, 1976
    • Caterpillar Tractor Co.
    • Lawrence F. Schexnayder
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Dual source hydraulic steering system
    • Patent number 3,935,918
    • Issue date Feb 3, 1976
    • Caterpillar Tractor Co.
    • Leon E. Hicks
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL