David E Sharp

US Patent:

7837843, Nov 23, 2010

Filed:

Jun 5, 2006

Appl. No.:

11/446380

Inventors:

David Sharp - Indianapolis IN, US
Albert Feuerstein - Carmel IN, US
Scott Cain - Sheridan IN, US

Assignee:

Praxair S.T. Technology, Inc. - Danbury CT

International Classification:

C23C 14/34
C23C 16/00

US Classification:

20429815, 20429841, 118728, 118729, 118730, 118500, 118505

Abstract:

This invention relates to a fixture for use in a physical vapor deposition coating operation which comprises a support structure comprising a circular base member , a circular top member opposite the circular base member , and a plurality of structural members joining said top member to said base member ; a plurality of panel members aligned in a vertical direction around the outer periphery of said support structure forming a cylinder-like structure; said panel members including a plurality of apertures for holding workpieces and to which a coating is to be applied; and said apertures positioned on said panel members so that said workpieces and are aligned in a staggered vertical direction. This invention also relates to a method for simultaneously coating a plurality of workpieces and , such as gas turbine compressor blades and vanes, with erosion resistant coatings using the fixture of this invention.

US Patent:

8308916, Nov 13, 2012

Filed:

Jul 9, 2010

Appl. No.:

12/833226

Inventors:

David Sharp - Indianapolis IN, US
Albert Feuerstein - Carmel IN, US
Scott Cain - Sheridan IN, US

Assignee:

Praxair S. T. Technology, Inc. - North Haven CT

International Classification:

C23C 14/34
C23C 16/00

US Classification:

20419216, 20419212, 20419215, 4272481, 427250, 427251, 4272555

Abstract:

This invention relates to a fixture for use in a physical vapor deposition coating operation which comprises a support structure comprising a circular base member , a circular top member opposite the circular base member , and a plurality of structural members joining said top member to said base member ; a plurality of panel members aligned in a vertical direction around the outer periphery of said support structure forming a cylinder structure; said panel members including a plurality of apertures for holding workpieces and to which a coating is to be applied; and said apertures positioned on said panel members so that said workpieces and are aligned in a staggered vertical direction. This invention also relates to a method for simultaneously coating a plurality of workpieces and , such as gas turbine compressor blades and vanes, with erosion resistant coatings using the fixture of this invention.

US Patent:

48662410, Sep 12, 1989

Filed:

Mar 30, 1988

Appl. No.:

7/175240

Inventors:

William G. Doherty - Lebanon IN
Mark McCoy - Indianapolis IN
David J. Sharp - Indianapolis IN

Assignee:

Union Carbide Corporation - Danbury CT

International Classification:

B23K 900

US Classification:

21912147

Abstract:

An apparatus for coating the internal surface of a tubular object having an irregular internal surface which comprises a combination of arms which enable the torch to be in the optimal coating position as it moves over and coats the internal surface.