TREA

Leon A. Wirt

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  • Joliet, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fluid control system
    • Patent number 4,454,715
    • Issue date Jun 19, 1984
    • Caterpillar Tractor Co.
    • Thomas P. Muller
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Method for making a shear blade
    • Patent number 4,335,631
    • Issue date Jun 22, 1982
    • Caterpillar Tractor Co.
    • Leon A. Wirt
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Brake release mechanism
    • Patent number 4,195,716
    • Issue date Apr 1, 1980
    • Caterpillar Tractor Co.
    • Leon A. Wirt
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Tree harvester control linkage
    • Patent number 4,126,235
    • Issue date Nov 21, 1978
    • Caterpillar Tractor Co.
    • Leon A. Wirt
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Tree shear tilting mechanism
    • Patent number 4,108,224
    • Issue date Aug 22, 1978
    • Caterpillar Tractor Co.
    • Leon A. Wirt
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic circuit for tree harvester
    • Patent number 4,077,445
    • Issue date Mar 7, 1978
    • Caterpillar Tractor Co.
    • Leon A. Wirt
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Tree shear with spherical blades
    • Patent number 4,069,847
    • Issue date Jan 24, 1978
    • Caterpillar Tractor Co.
    • Leon A. Wirt
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Boom-stick adapter for two-piece boom
    • Patent number 4,029,225
    • Issue date Jun 14, 1977
    • Caterpillar Tractor Co.
    • Leon A. Wirt
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Ripper tip assembly
    • Patent number 4,013,130
    • Issue date Mar 22, 1977
    • Caterpillar Tractor Co.
    • Leon A. Wirt
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Bulldozer assembly with means for pivotally connecting the push arm...
    • Patent number 3,998,277
    • Issue date Dec 21, 1976
    • Caterpillar Tractor Co.
    • Leon A. Wirt
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Shear-mechanism-tree harvester
    • Patent number 3,995,671
    • Issue date Dec 7, 1976
    • Caterpillar Tractor Co.
    • Leon A. Wirt
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Self-aligning trunnion bearing assembly
    • Patent number 3,964,803
    • Issue date Jun 22, 1976
    • Caterpillar Tractor Co.
    • Larry G. Eftefield
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING