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Dale B. Andrews

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  • Derry, NH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fully enclosed seal and bearing assembly for between-bearing pumps
    • Patent number 8,979,478
    • Issue date Mar 17, 2015
    • Flowserve Management Company
    • Dale B. Andrews
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multistage slurry pump
    • Patent number 8,192,155
    • Issue date Jun 5, 2012
    • Flowserve Management Company
    • Dale B Andrews
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Open face cooling system for submersible motor
    • Patent number 7,341,436
    • Issue date Mar 11, 2008
    • Lawrence Pumps, Inc.
    • Dale B Andrews
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Submersible motor with shaft seals
    • Patent number 6,379,127
    • Issue date Apr 30, 2002
    • Lawrence Pumps, Inc.
    • Dale B. Andrews
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents