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David A. Welch

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  • Quaker Hill, CT, US
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    COMPOSITE FAN BLADE
    • Publication number 20210404343
    • Publication date Dec 30, 2021
    • Raytheon Technologies Corporation
    • David A. Welch
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    AIRFOIL WITH INTEGRAL PLATFORM FOR GAS TURBINE ENGINES
    • Publication number 20210317747
    • Publication date Oct 14, 2021
    • United Technologies Corporation
    • David A. Welch
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    COMPOSITE FAN BLADE
    • Publication number 20200173286
    • Publication date Jun 4, 2020
    • United Technologies Corporation
    • David A. Welch
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    ROTOR ASSEMBLY WITH ACTIVE DAMPING FOR GAS TURBINE ENGINES
    • Publication number 20200123905
    • Publication date Apr 23, 2020
    • United Technologies Corporation
    • Jason Husband
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    FAN BLADE WITH STRUCTURAL SPAR AND INTEGRATED LEADING EDGE
    • Publication number 20180073519
    • Publication date Mar 15, 2018
    • United Technologies Corporation
    • David A. Welch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MICRO LATTICE HYBRID COMPOSITE FAN BLADE
    • Publication number 20180038385
    • Publication date Feb 8, 2018
    • United Technologies Corporation
    • David A. Welch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SHORT INLET WITH INTEGRATED LINER ANTI-ICING
    • Publication number 20170298821
    • Publication date Oct 19, 2017
    • United Technologies Corporation
    • David A. Welch
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    FAN BLADE REMOVAL FEATURE FOR A GAS TURBINE ENGINE
    • Publication number 20170284202
    • Publication date Oct 5, 2017
    • United Technologies Corporation
    • David A. Welch
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    GAS TURBINE ENGINE WITH SHORT INLET AND BLADE REMOVAL FEATURE
    • Publication number 20170175767
    • Publication date Jun 22, 2017
    • United Technologies Corporation
    • Frederick M. Schwarz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    GAS TURBINE ENGINE HEAT EXCHANGER MANIFOLD
    • Publication number 20160131039
    • Publication date May 12, 2016
    • United Technologies Corporation
    • William MEYST
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    THERMALLY CONFORMING ACOUSTIC LINER CARTRIDGE FOR A GAS TURBINE ENGINE
    • Publication number 20160032833
    • Publication date Feb 4, 2016
    • United Technologies Corporation
    • Thomas J. Robertson
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    LINER ATTACHING SCHEME
    • Publication number 20150023780
    • Publication date Jan 22, 2015
    • Mark W. Costa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    GAS TURBINE ENGINE AND NACELLE NOISE ATTENUATION STRUCTURE
    • Publication number 20130283821
    • Publication date Oct 31, 2013
    • Jonathan Gilson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Nosecone bolt access and aerodynamic leakage baffle
    • Publication number 20100322782
    • Publication date Dec 23, 2010
    • United Technologies Corporation
    • David A. Welch
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    Split flange V-groove and anti-rotation mating system
    • Publication number 20070160471
    • Publication date Jul 12, 2007
    • United Technologies Corporation
    • David A. Welch
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES