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Lee A. Perkins

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  • Lowden, WA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Nozzle and sprinkler for center pivot end
    • Patent number 12,186,766
    • Issue date Jan 7, 2025
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Viscous rotational speed control device with fluid circuit
    • Patent number 10,107,342
    • Issue date Oct 23, 2018
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Viscous rotational speed control device
    • Patent number 9,995,352
    • Issue date Jun 12, 2018
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Viscous rotational speed control device
    • Patent number 9,657,790
    • Issue date May 23, 2017
    • Nelson Irrigation Corporation
    • George L. Sesser
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Viscous rotational speed control device
    • Patent number 9,587,687
    • Issue date Mar 7, 2017
    • Nelson Irrigation Corporation
    • George L. Sesser
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Pressure regulator with remotely controlled shut-off valve
    • Patent number 8,678,029
    • Issue date Mar 25, 2014
    • Nelson Irrigation Corporation
    • Cliff P. Ungerecht
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Dripless rotary sprinkler and related method
    • Patent number 8,336,788
    • Issue date Dec 25, 2012
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Sprinkler with nutating mechanism and optional weight
    • Patent number 7,942,345
    • Issue date May 17, 2011
    • Nelson Irrigation Corporation
    • George L. Sesser
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Sprinkler with magnetic nutating mechanism and related method
    • Patent number 7,562,833
    • Issue date Jul 21, 2009
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Sprinkler with magnetic nutating mechanism and related method
    • Patent number 7,287,710
    • Issue date Oct 30, 2007
    • Nelson Irrigation Corporation
    • Craig Nelson
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Adjustable arc, adjustable flow rate sprinkler
    • Patent number 7,159,795
    • Issue date Jan 9, 2007
    • Nelson Irrigation Corporation
    • George L. Sesser
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Shaft seal with grease retainer
    • Patent number 7,086,608
    • Issue date Aug 8, 2006
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Adjustable arc, adjustable flow rate sprinkler
    • Patent number 7,032,836
    • Issue date Apr 25, 2006
    • Nelson Irrigation Corporation
    • George Sesser
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Shaft seal with grease retainer
    • Patent number 7,025,287
    • Issue date Apr 11, 2006
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Adjustable arc, adjustable flow rate sprinkler
    • Patent number 6,736,332
    • Issue date May 18, 2004
    • Nelson Irrigation Corporation
    • George L. Sesser
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Adjustable arc, adjustable flow rate sprinkler
    • Patent number 6,651,905
    • Issue date Nov 25, 2003
    • Nelson Irrigation Corporation
    • George Sesser
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Pressure compensating drip tape
    • Patent number 6,382,530
    • Issue date May 7, 2002
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Combination air release valve
    • Patent number 6,276,390
    • Issue date Aug 21, 2001
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Air release valve
    • Patent number 6,145,533
    • Issue date Nov 14, 2000
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Air release valve
    • Patent number 5,957,150
    • Issue date Sep 28, 1999
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Air release valve
    • Patent number 5,794,646
    • Issue date Aug 18, 1998
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    NOZZLE AND SPRINKLER FOR CENTER PIVOT END
    • Publication number 20220168759
    • Publication date Jun 2, 2022
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    VISCOUS ROTATIONAL SPEED CONTROL DEVICE WITH FLUID CIRCUIT
    • Publication number 20160356327
    • Publication date Dec 8, 2016
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    VISCOUS ROTATIONAL SPEED CONTROL DEVICE
    • Publication number 20160201742
    • Publication date Jul 14, 2016
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    VISCOUS ROTATIONAL SPEED CONTROL DEVICE
    • Publication number 20160201743
    • Publication date Jul 14, 2016
    • Nelson Irrigation Corporation
    • George L. Sesser
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    VISCOUS ROTATIONAL SPEED CONTROL DEVICE
    • Publication number 20160201744
    • Publication date Jul 14, 2016
    • Nelson Irrigation Corporation
    • George L. Sesser
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PRESSURE REGULATOR WITH REMOTELY CONTROLLED SHUT-OFF VALVE
    • Publication number 20120285557
    • Publication date Nov 15, 2012
    • Nelson Irrigation Corporation
    • Cliff P. UNGERECHT
    • G05 - CONTROLLING REGULATING
  • Information Patent Application

    DRIPLESS ROTARY SPRINKLER AND RELATED METHOD
    • Publication number 20110031325
    • Publication date Feb 10, 2011
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    Sprinkler with nutating mechanism and optional weight
    • Publication number 20100038450
    • Publication date Feb 18, 2010
    • George L. Sesser
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    Sprinkler with magnetic nutating mechanism and related method
    • Publication number 20080017732
    • Publication date Jan 24, 2008
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    Shaft seal with grease retainer
    • Publication number 20060038036
    • Publication date Feb 23, 2006
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    Shaft seal with grease retainer
    • Publication number 20050035211
    • Publication date Feb 17, 2005
    • Nelson Irrigation Corporation
    • Lee A. Perkins
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    Adjustable arc, adjustable flow rate sprinkler
    • Publication number 20040227007
    • Publication date Nov 18, 2004
    • Nelson Irrigation Corporation
    • George L. Sesser
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    Adjustable arc, adjustable flow rate sprinkler
    • Publication number 20040050955
    • Publication date Mar 18, 2004
    • Nelson Irrigation Corporation
    • George Sesser
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    Adjustable arc, adjustable flow rate sprinkler
    • Publication number 20020166900
    • Publication date Nov 14, 2002
    • Nelson Irrigation Corporation
    • George L. Sesser
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    Adjustable arc, adjustable flow rate sprinkler
    • Publication number 20020139868
    • Publication date Oct 3, 2002
    • George Sesser
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...