Kenneth R Lewis

US Patent:

6644668, Nov 11, 2003

Filed:

Jun 13, 2002

Appl. No.:

10/170163

Inventors:

Robert J. Albers - Park Hills KY
Randall C. Bauer - Loveland OH
John C. Brauer - Lawrenceburg IN
Scott Joseph Schmid - Montgomery OH
Kenneth M. Lewis - Middletown OH

Assignee:

General Electric Company - Schenectady NY

International Classification:

F16J 1544

US Classification:

277355

Abstract:

A support arrangement for a brush seal positioned between a stationary and a rotatable component of a turbomachine. The brush seal has a downstream backing plate that includes an axially-extending lip adjacent its radially outermost end to minimize axial deflection of the seal as a result of a gas pressure differential acting across the seal.

US Patent:

6884028, Apr 26, 2005

Filed:

Sep 30, 2002

Appl. No.:

10/261072

Inventors:

John Christopher Brauer - Lawrenceburg IN, US
Kenneth Martin Lewis - Mason OH, US
Fred Martin Heise - Cincinnati OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F01D011/00
F01D005/30

US Classification:

4151737, 416220 R, 416221

Abstract:

A blade retention assembly is provided that comprises: a disk, a plurality of blades, each having a dovetail disposed in one of an array of slots formed in the outer periphery of the disk, an annular inner retainer attached to the disk, and a plurality of arcuate blade retainers, the blade retainers being secured to the inner retainer by a hooked rabbet joint. A blade retainer is also provided, comprising an arcuate body having a planar inner face having an arcuate depression formed therein defining a sealing lip, and an aft face disposed opposite the inner face which has an arcuate rim formed therein.

US Patent:

7048496, May 23, 2006

Filed:

Oct 31, 2002

Appl. No.:

10/285891

Inventors:

Robert Proctor - West Chester OH, US
James Patrick Dolan - Cincinnati OH, US
John Christopher Brauer - Lawrenceburg IN, US
Christopher Charles Glynn - Hamilton OH, US
Kenneth Martin Lewis - Middletown OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F01D 25/12

US Classification:

415115, 415116, 4151745, 415 69, 416 95, 416128, 416204 A

Abstract:

A rotor system for a gas turbine engine is provided having an outer rotor which includes an annular outer spool that comprises at least one ring portion of increased thickness with respect to the remainder of the outer spool, attached to a relatively thinner, axially extending arm portion. A plurality of outer turbine blades are attached to the ring portion of the outer spool and extend radially inwardly into a working gas flowpath of the engine. A casing surrounds the outer spool and defines an annular cavity between the casing and the outer spool, which is sealed by forward and aft brush seals at the forward and aft ends thereof. At least one inlet port is formed through the casing for admitting a flow of cooling air to the annular cavity. Means are provided for directing this cooling air flow to the ring portion of the outer spool.

US Patent:

53746694, Dec 20, 1994

Filed:

May 26, 1993

Appl. No.:

8/067707

Inventors:

David M. Parish - Loveland OH
Kenneth E. Lewis - Lebanon OH

Assignee:

Fibre Glass-Evercoat Company, Inc. - Cincinnati OH

International Classification:

C09D 534
C08K 336
C08K 332
C08L 3506

US Classification:

523219

Abstract:

A sprayable, high solids, low-volatiles filler composition is provided which may be used as a coating on a variety of substrates. The sprayable filler composition comprises a first filler/glazing component formed from a mixture of a resin, a filler, a mixture of thixotropic clays, activated fumed silica, hollow glass microspheres, and a ketone solvent. The sprayable filler composition has a second catalyst component. The glazing/filler component is blended with the catalyst component, preferably either internally or externally of the spray nozzle, and the resultant sprayable filler composition is sprayed onto a substrate. The resulting cured coating provides a sandable surface which is corrosion resistant.

US Patent:

53711173, Dec 6, 1994

Filed:

Nov 30, 1993

Appl. No.:

8/160605

Inventors:

David M. Parish - Loveland OH
Kenneth E. Lewis - Lebanon OH

Assignee:

Fibre Glass-Evercoat Company, Inc. - Cincinnati OH

International Classification:

C09D 534
C08K 336
C08K 332
C08L 6310

US Classification:

523219

Abstract:

A sprayable, high solids, low-volatiles filler composition is provided which may be used as a coating on a variety of substrates. The sprayable filler composition comprises a first filler/glazing component formed from a mixture of a resin, a filler, a mixture of thixotropic clays, activated fumed silica, hollow glass microspheres, and a ketone solvent. The sprayable filler composition has a second catalyst component. The glazing/filler component is blended with the catalyst component, preferably either internally or externally of the spray nozzle, and the resultant sprayable filler composition is sprayed onto a substrate. The resulting cured coating provides a sandable surface which is corrosion resistant.

US Patent:

53730364, Dec 13, 1994

Filed:

Jan 18, 1994

Appl. No.:

8/182575

Inventors:

David M. Parish - Loveland OH
Kenneth E. Lewis - Lebanon OH

Assignee:

Fibre Glass-Evercoat Company, Inc. - Cincinnati OH

International Classification:

C09D 534
C08K 336
C08K 332
C08L 3506

US Classification:

523219

Abstract:

A sprayable, high solids, low-volatiles filler composition is provided which may be used as a coating on a variety of substrates. The sprayable filler composition comprises a first filler/glazing component formed from a mixture of a resin, a filler, a mixture of thixotropic clays, activated fumed silica, hollow glass microspheres, and a ketone solvent. The sprayable filler composition has a second catalyst component. The glazing/filler component is blended with the catalyst component, preferably either internally or externally of the spray nozzle, and the resultant sprayable filler composition is sprayed onto a substrate. The resulting cured coating provides a sandable surface which is corrosion resistant.

US Patent:

20180135646, May 17, 2018

Filed:

Nov 16, 2016

Appl. No.:

15/353101

Inventors:

- Schenectady NY, US
Neelesh Nandkumar Sarawate - Niskayuna NY, US
Kenneth Martin Lewis - Liberty Township OH, US
Larry Steven Rosenzweig - Clifton Park NY, US
Changjie Sun - Clifton Park NY, US
Ananda Barua - Schenectady NY, US

International Classification:

F04D 29/38

Abstract:

Coating systems for components of a gas turbine engine, such as a compressor blade tip, are provided. The coating system can include an abradable material disposed along the compressor blade tip and may be used with a bare compressor casing. The abradable coating is softer than the compressor casing and can reduce the overall rub ratio thereby increasing the lifetime of the compressor blade and casing. Methods are also provided for applying the coating system onto a compressor blade.

US Patent:

20170254210, Sep 7, 2017

Filed:

Mar 7, 2016

Appl. No.:

15/063048

Inventors:

- Schenectady NY, US
Neelesh Nandkumar Sarawate - Niskayuna NY, US
Kenneth Martin Lewis - Liberty Township OH, US
Changjie Sun - Clifton Park NY, US
Yu Xie Mukherjee - West Chester OH, US
Sathyanarayanan Raghavan - Ballston Lake NY, US

International Classification:

F01D 5/20

Abstract:

An airfoil for use in a turbomachine includes a pressure sidewall and a suction sidewall coupled to the pressure sidewall. The suction sidewall and the pressure sidewall define a leading edge and a trailing edge, the leading edge and the trailing edge define a chord distance. The airfoil includes a tip portion extending between the pressure sidewall and the suction sidewall. The tip portion includes a planar section and a recessed section. The recessed section extends adjacent to the planar section such that a thickness of the planar section is less than a thickness of the airfoil. The recessed section is offset a predetermined distance from the leading edge and the trailing edge along the chord distance.