TREA

Robert T. Ackerman

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  • Seattle, WA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Log bark slitting machine
    • Patent number 5,472,027
    • Issue date Dec 5, 1995
    • Nicholson Manufacturing Company
    • Robert T. Ackerman
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Rotary cutters for ring debarkers
    • Patent number 5,070,919
    • Issue date Dec 10, 1991
    • Nicholson Manufacturing Company
    • Robert T. Ackerman
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Recirculating oil lubrication system for rotary ring log barkers
    • Patent number 4,844,201
    • Issue date Jul 4, 1989
    • Nicholson Manufacturing Company
    • Robert T. Ackerman
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Forwardly-projecting debarking tool barker arm
    • Patent number 4,653,559
    • Issue date Mar 31, 1987
    • Nicholson Manufacturing Company
    • Robert T. Ackerman
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Variable pneumatic pressure force-transmitting mechanism
    • Patent number 4,566,371
    • Issue date Jan 28, 1986
    • Nicholson Manufacturing Company
    • Ray B. Jorgensen
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary drum wastewood chipper
    • Patent number 4,077,450
    • Issue date Mar 7, 1978
    • Nicholson Manufacturing Company
    • Robert T. Ackerman
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...