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Frederick Allan Powers

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  • Mape Grove, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lawn applicator module and control system therefor
    • Patent number 6,164,560
    • Issue date Dec 26, 2000
    • Wanner Engineering, Inc.
    • Kenneth Eugene Lehrke
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Valve for use with agricultural sprayers
    • Patent number 6,089,532
    • Issue date Jul 18, 2000
    • Wanner Engineering, Inc.
    • Terry Lynn Rohloff
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Valve assembly for use with high pressure pumps
    • Patent number 6,019,124
    • Issue date Feb 1, 2000
    • Wanner Engineering, Inc.
    • Timothy L. Sebion
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Diaphragm pump
    • Patent number 5,707,219
    • Issue date Jan 13, 1998
    • Wanner Engineering
    • Frederick Allan Powers
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Spray gun for spraying two fluids
    • Patent number 5,667,143
    • Issue date Sep 16, 1997
    • Wanner Engineering, Inc.
    • Timothy L. Sebion
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Quiet check valve
    • Patent number 5,368,454
    • Issue date Nov 29, 1994
    • Graco Inc.
    • Frederick A. Powers
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Reduced icing low friction air valve
    • Patent number 5,277,099
    • Issue date Jan 11, 1994
    • Graco Inc.
    • Frederick A. Powers
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Device for reducing icing
    • Patent number 5,189,943
    • Issue date Mar 2, 1993
    • Graco Inc.
    • Frederick A. Powers
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Non-icing quiet air-operated pump
    • Patent number 4,921,408
    • Issue date May 1, 1990
    • Graco Inc.
    • Daniel J. Kvinge
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Viscous damped valve for hydraulic pump
    • Patent number 4,792,291
    • Issue date Dec 20, 1988
    • Graco Inc.
    • Daniel J. Kvinge
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Leakage preventing liquid supply pump
    • Patent number 4,681,516
    • Issue date Jul 21, 1987
    • Graco Inc.
    • John G. O'Hara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Loop injection circulation system
    • Patent number 4,653,532
    • Issue date Mar 31, 1987
    • Graco Inc.
    • Fredrick A. Powers
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Pump seal with curved backup plate
    • Patent number 4,637,295
    • Issue date Jan 20, 1987
    • Frederick A. Powers
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...