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David Randolph Spracher

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  • Simpsonville, SC, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Turbine rotor rim seal axial retention assembly
    • Patent number 9,890,648
    • Issue date Feb 13, 2018
    • General Electric Company
    • David Randolph Spracher
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Turbomachine component displacement apparatus and method of use
    • Patent number 9,713,862
    • Issue date Jul 25, 2017
    • General Electric Company
    • James Bradford Holmes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Removal device
    • Patent number 9,677,428
    • Issue date Jun 13, 2017
    • General Electric Company
    • James Bradford Holmes
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Turbomachine bucket displacement apparatus and method of use
    • Patent number 9,636,789
    • Issue date May 2, 2017
    • General Electric Company
    • James Bradford Holmes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Turbine blade mid-span shroud assembly
    • Patent number 9,574,450
    • Issue date Feb 21, 2017
    • General Electric Company
    • David Randolph Spracher
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Turbomachine component displacement apparatus and method of use
    • Patent number 9,429,041
    • Issue date Aug 30, 2016
    • General Electric Company
    • James Bradford Holmes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Turbomachine bucket displacement apparatus and method of use
    • Patent number 9,381,602
    • Issue date Jul 5, 2016
    • General Electric Company
    • James Bradford Holmes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    System for axial retention of rotating segments of a turbine
    • Patent number 9,051,845
    • Issue date Jun 9, 2015
    • General Electric Company
    • Harish Bommanakatte
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Near flow path seal for a turbomachine
    • Patent number 8,864,453
    • Issue date Oct 21, 2014
    • General Electric Company
    • David Randolph Spracher
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Stator ring configuration
    • Patent number 8,429,816
    • Issue date Apr 30, 2013
    • General Electric Company
    • David R. Spracher
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Stator vane profile optimization
    • Patent number 8,113,786
    • Issue date Feb 14, 2012
    • General Electric Company
    • David Randolph Spracher
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Airfoil shape for a compressor
    • Patent number 7,534,093
    • Issue date May 19, 2009
    • General Electric Company
    • David Spracher
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Airfoil shape for a compressor
    • Patent number 7,494,322
    • Issue date Feb 24, 2009
    • General Electric Company
    • David Spracher
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    TURBOMACHINE COMPONENT DISPLACEMENT APPARATUS AND METHOD OF USE
    • Publication number 20160332267
    • Publication date Nov 17, 2016
    • GENERAL ELECTRIC COMPANY
    • James Bradford Holmes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    TURBOMACHINE BUCKET DISPLACEMENT APPARATUS AND METHOD OF USE
    • Publication number 20160271743
    • Publication date Sep 22, 2016
    • GENERAL ELECTRIC COMPANY
    • James Bradford Holmes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    TURBINE BLADE MID-SPAN SHROUD ASSEMBLY
    • Publication number 20160040535
    • Publication date Feb 11, 2016
    • GENERAL ELECTRIC COMPANY
    • David Randolph Spracher
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    TURBINE BLADE MID-SPAN SHROUD ASSEMBLY
    • Publication number 20160040537
    • Publication date Feb 11, 2016
    • GENERAL ELECTRIC COMPANY
    • David Randolph Spracher
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    TURBOMACHINE BUCKET DISPLACEMENT APPARATUS AND METHOD OF USE
    • Publication number 20150328728
    • Publication date Nov 19, 2015
    • GENERAL ELECTRIC COMPANY
    • James Bradford Holmes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    TURBOMACHINE COMPONENT DISPLACEMENT APPARATUS AND METHOD OF USE
    • Publication number 20150328729
    • Publication date Nov 19, 2015
    • GENERAL ELECTRIC COMPANY
    • James Bradford Holmes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    REMOVAL DEVICE
    • Publication number 20150260043
    • Publication date Sep 17, 2015
    • GENERAL ELECTRIC COMPANY
    • James Bradford Holmes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    NEAR FLOW PATH SEAL FOR A TURBOMACHINE
    • Publication number 20130189087
    • Publication date Jul 25, 2013
    • GENERAL ELECTRIC COMPANY
    • David Randolph Spracher
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    SYSTEM FOR AXIAL RETENTION OF ROTATING SEGMENTS OF A TURBINE
    • Publication number 20130177429
    • Publication date Jul 11, 2013
    • GENERAL ELECTRIC COMPANY
    • Harish Bommanakatte
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    TURBINE ROTOR RIM SEAL AXIAL RETENTION ASSEMBLY
    • Publication number 20130175230
    • Publication date Jul 11, 2013
    • GENERAL ELECTRIC COMPANY
    • David Randolph SPRACHER
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    STATOR VANE PROFILE OPTIMIZATION
    • Publication number 20100068048
    • Publication date Mar 18, 2010
    • David Randolph Spracher
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Stator Ring Configuration
    • Publication number 20100064516
    • Publication date Mar 18, 2010
    • David R. Spracher
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Airfoil shape for a compressor
    • Publication number 20080101949
    • Publication date May 1, 2008
    • General Electric
    • David Spracher
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Airfoil shape for a compressor
    • Publication number 20080101944
    • Publication date May 1, 2008
    • General Electric
    • David Spracher
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES