David L 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.

US Patent:

60864494, Jul 11, 2000

Filed:

Jan 14, 1999

Appl. No.:

9/231701

Inventors:

David F. Sharp - East Windsor NJ

International Classification:

A63H 3300

US Classification:

446486

Abstract:

A spring biased projectable latch mechanism having a triggerable release mechanism at the end of said latch which is projected furthest into a latch receptacle during fastener engagement. A latch housing part of an object being fastened, said housing comprising said latch, said spring bias means, at least one receptacle, and a trigger chamber area. The housing and latch mechanism are constructed such that the spring biased release of the latch of one object actuates the trigger release mechanism of each adjacent object, resulting in a cascading release of a complex structure of interconnected objects in response to a single latch release trigger event.

US Patent:

20180291945, Oct 11, 2018

Filed:

Apr 5, 2018

Appl. No.:

15/946142

Inventors:

- Langhorne PA, US
David L. Sharp - Warrington PA, US

Assignee:

TurnaSure LLC - Langhorne PA

International Classification:

F16B 31/02

Abstract:

A direct tension indicating (DTI) washer. The DTI washer has an annular body and one or more U-shaped horseshoe protuberances. The annular body includes a central hole, a circumference, an outer edge, a first face, and a second face opposite from the first face. The horseshoe protuberances each have a height, an apex closest to the central hole, and an opening directed toward the outer edge. The horseshoe protuberances are integral with the annular body and struck and partially sheared from the annular body to project from the first face of the annular body and leave one or more corresponding indentations in the second face of the annular body. The horseshoe protuberances may be radially offset from their corresponding indentations. An indicating material is initially encapsulated and contained within the area on the first face defined by each of the horseshoe protuberances.

US Patent:

20170130758, May 11, 2017

Filed:

Nov 11, 2015

Appl. No.:

14/938081

Inventors:

- Langhorne PA, US
David L. Sharp - Warrington PA, US

Assignee:

TurnaSure LLC - Langhorne PA

International Classification:

F16B 31/02
F16B 5/02

Abstract:

A direct tension indicating washer including an annular body with a central hole, one or more protuberances, and one or more indentations. The one or more protuberances are integral with the annular body, and struck and partially sheared from the annular body to project from a first face of the annular body and leave the one or more corresponding indentations in a second face of the annular body opposite the first face. The one or more indentations are offset from the one or more protuberances and located farther from the central hole of the annular body than the one or more protuberances. By offsetting the protuberances and indentations, the washer is strengthened and is more suitable for use in joint assemblies having enlarged or oversized holes.