Alan R Demania, 6913 Brendan Ln, Schenectady, NY 12309

7195455, Mar 27, 2007

Aug 17, 2004

10/919435

Raymond Joseph Stonitsch - Simpsonville SC, US
Alan Richard Demania - Niskayuna NY, US
Kevin Joseph Barb - Halfmoon NY, US

General Electric Company - Schenectady NY

F01D 5/14

415200, 415241 B

A new high-strength titanium-based alloy bucket specifically suited for use as the last stage buckets in steam turbine engines having vane lengths of about 40 inches or greater and the method for forming such bucket. Exemplary buckets according to the invention are formed from a titanium-based alloy containing up to about 6. 25% aluminum; (b) about to 3. 5% vanadium; (c) about 2. 25% tin, (d) about 2. 25% zirconium, (e) about 1. 75% molybdenum, (f) about 2. 25% chromium, (g) about 0. 7% silicon; and (h) about 2. 3% iron, with the balance being titanium. After forming, the bucket can be heat treated to provide stress relief and then machined in a conventional manner.

8046886, Nov 1, 2011

Dec 30, 2009

12/649778

Alan R. DeMania - Niskayuna NY, US
Thomas J. Farineau - Schoharie NY, US
Keith A. Schoonmaker - Valatie NY, US

General Electric Company - Schenectady NY

B23P 15/04

29 2351, 298892, 2988921

A fixture and method for assembling axial entry buckets with complex geometry to a rotor wheel is provided. The fixture features an inner and an outer split ring shaft clamp, which is bolted together around the rotor wheel packing diameter and provides a mounting base. The transfer ring mounts around and abutting the rotor wheel. The transfer ring includes a circumferential slot to accept bucket-holders. The bucket holders loaded with turbine buckets, inserted onto the transfer ring and moved circumferentially around the transfer ring to align the turbine buckets to slots on the rotor wheel. Pressure is applied to spiral the buckets from the bucket-holders into final position in slots on the rotor wheel.

8052393, Nov 8, 2011

Sep 8, 2008

12/205937

Alan Richard DeMania - Niskayuna NY, US
Steven Michael DeLessio - Madison AL, US

General Electric Company - Schenectady NY

B64C 11/04
F04D 29/34
F03B 3/12

416212A, 416189

A steam turbine rotating blade for a low pressure section of a steam turbine engine is disclosed. The steam turbine rotating blade includes an airfoil portion. A root section is attached to one end of the airfoil portion. A dovetail section projects from the root section, wherein the dovetail section includes a straight axial entry dovetail. A tip section is attached to the airfoil portion at an end opposite from the root section. A cover is integrally formed as part of the tip section. The cover has a first portion that overhangs a pressure side of the airfoil portion and a second portion that overhangs a suction side of the airfoil portion. The cover is positioned at an angle relative to the tip section, wherein the angle ranges from about 15 degrees to about 35 degrees.

8056227, Nov 15, 2011

Feb 6, 2009

12/366688

Alan Richard DeMania - Niskayuna NY, US
Alan Donn Maddaus - Rexford NY, US
Steven Russell Pock - Windham ME, US

General Electric Company - Schenectady NY

B21D 53/78
F01D 5/30

2988921, 298897, 416189, 416193 R, 416195, 416196 R, 416241 R

A turbine blade including a root section at an end of the turbine blade, a first airfoil section adjacent to the root section, and a tip section adjacent to the airfoil section and including a material block that is incongruous with the airfoil section. A midspan section may also include a material block. Each material block can be selectively machined to customize the length of the turbine blade and the position of a tip shroud connection or midspan connection. The turbine blade can be sized for retrofitting last stage blades of older turbines. A radial position of the root mounts for the turbine blade may also be adjusted to provide further customization.

8057187, Nov 15, 2011

Sep 8, 2008

12/205938

Alan Richard DeMania - Niskayuna NY, US
Muhammad Saqib Riaz - Niskayuna NY, US

General Electric Company - Schenectady NY

B64C 11/04
F04D 29/34
F03B 3/12

416212A, 416189

A steam turbine rotating blade for a low pressure section of a steam turbine engine is disclosed. The steam turbine rotating blade includes an airfoil portion. A root section is attached to one end of the airfoil portion. A dovetail section projects from the root section, wherein the dovetail section includes a skewed axial entry dovetail. A tip section is attached to the airfoil portion at an end opposite from the root section. A cover is integrally formed as part of the tip section. The cover comprises a first flat section, a second flat section, and a depression section located laterally between the first flat section and second flat section. The depression section is located below the first flat section at a first end where the first flat section and depression section are contiguous. The depression section rises above to the second flat section at a second end where the second flat section and depression section are contiguous. The second flat section is raised above the first flat section.

8118557, Feb 21, 2012

Mar 25, 2009

12/410877

Alan R. DeMania - Niskayuna NY, US
F. Timothy Wendell - Fonda NY, US

General Electric Company - Schenectady NY

F01D 5/22

416191

A bucket for use in the low-pressure section of a steam turbine engine is provided. The bucket has a vane length of at least about 52 inches. The bucket is comprised of a dovetail section disposed near an inner radial position of the bucket, a tip shroud disposed near an outer radial position of the bucket and a part span shroud disposed at an intermediate radial position. The intermediate radial position is disposed at a location between the inner and outer radial positions the intermediate radial positioning adapted to promote aerodynamic performance of the part span shroud. The bucket is comprised of a chromium steel.

8210822, Jul 3, 2012

Sep 8, 2008

12/205939

Alan Richard DeMania - Niskayuna NY, US
Steven Michael DeLessio - Madison AL, US

General Electric Company - Schenectady NY

B64C 11/04

416219R, 416223 R

A dovetail for a steam turbine rotating blade and rotor wheel is provided. The dovetail design comprises a rotating blade curved axial entry dovetail having a four hook profile and a rotor wheel dovetail slot sized to receive the blade dovetail. The blade dovetail and wheel dovetail slot each comprise a plurality of slanted crush surfaces, a plurality of non-contact surfaces, and a plurality of necks that each provide a transition between a slanted crush surface to a non-contact surface. Each neck comprises a slant angle defined by the transition of the slanted crush surface to the non-contact surface. The slant angle ranges from about 60 degrees to about 82 degrees.

8277189, Oct 2, 2012

Nov 12, 2009

12/617683

Alan Richard DeMania - Niskayuna NY, US
F. Timothy Wendell - Fonda NY, US
Gary J. Yetto - Clifton Park NY, US

General Electric Company - Schenectady NY

F01D 5/14

416193A, 416236 R

Embodiments of the invention relate generally to turbine blades and rotors and, more particularly, to turbine blades having, among other features, complimentarily shaped integral covers and bases capable of increasing stiffness and damping characteristics while decreasing vibratory stress. In one embodiment, the invention provides a turbine blade comprising: an elongate vane having a twisted configuration about a longitudinal axis thereof, the elongate vane having a leading face and a trailing face; a base at a proximal end of the elongate vane, the base having: a substantially planar member substantially normal to the longitudinal axis of the elongate vane; and a dovetail member on a surface of the planar member opposite the elongate vane; and a cover member at a distal end of the elongate vane, the cover member having a leading face and a trailing face.