Erin M Perry

US Patent:

6850810, Feb 1, 2005

Filed:

Dec 17, 1999

Appl. No.:

09/465306

Inventors:

Hsin-Pang Wang - Rexford NY, US
Erin Marie Perry - Niskayuna NY, US
Martin Kin-Fei Lee - Niskayuna NY, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G06F 1900

US Classification:

700 97, 700197

Abstract:

A method for enabling design of a profile extrusion capping die includes, obtaining a size and configuration of a land formable by the capping die, obtaining material properties of a capping resin, obtaining operating conditions for processing the capping resin, and determining, from the size and configuration of the land, the material properties, the operating conditions, at least one of a velocity distribution and a pressure distribution of the capping resin adjacent to an outlet of the land. Desirably, the method also includes obtaining a size and configuration of a runner formable by the profile extrusion capping die, and determining at least one of the velocity distribution and the pressure distribution of the capping resin in the land and the runner. Advantageously, the method is implemented on a system or computer using a finite element mesh of the land and the runner and graphically displaying the velocity distribution and the pressure distribution. The system allows a designer to design a profile extrusion capping die electronically by revising the size and configuration of the land, runner, and/or inlet gate, to obtain a uniform velocity of the capping resin along the land outlet thus resulting in a capping having a uniform thickness.

US Patent:

7010474, Mar 7, 2006

Filed:

Nov 3, 2000

Appl. No.:

09/705572

Inventors:

Hsin-Pang Wang - Rexford NY, US
Sreeganesh Ramaswamy - Clifton Park NY, US
Irene Dris - Clifton Park NY, US
Erin Marie Perry - Niskayuna NY, US
Dongming Gao - Clifton Park NY, US

Assignee:

General Electric Company - Niskayuna NY

International Classification:

G06F 7/48

US Classification:

703 7, 703 9

Abstract:

A simulation system for generating a predicted performance for fabricated parts comprises a rheological degradation database for storing rheological degradation data for associated materials, a mechanical degradation database for storing mechanical degradation data for associated materials and a computer coupled to the rheological degradation database and the mechanical degradation database for computing part performance predictions for a respective material with a predetermined geometry under predetermined processing conditions, partially based on the rheological degradation data and the mechanical degradation data.

US Patent:

20120193841, Aug 2, 2012

Filed:

Jan 28, 2011

Appl. No.:

13/015897

Inventors:

Hsin-Pang Wang - Rexford NY, US
Erin Marie Perry - Niskayuna NY, US

International Classification:

C04B 35/64
B29C 45/72

US Classification:

264645, 425175

Abstract:

A system and a method of fabricating a complex three dimensional part are described. The system comprises a rapid prototyping machine configured to provide a disposable mold having a negative imprint of a complex three dimensional structure, a mixer, an injection molding machine, and a furnace system. A slurry comprising a powder and a binder is introduced into the disposable mold, the binder is cured, the disposable mold is removed, and the binder is removed, leaving an intact cured structure. The cured structure is sintered to fabricate the complex three dimensional part.

US Patent:

53140001, May 24, 1994

Filed:

May 3, 1993

Appl. No.:

8/056273

Inventors:

Hsin-Pang Wang - Rexford NY
Erin M. Perry - Scotia NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

B22D 2720

US Classification:

164 41

Abstract:

This invention relates to a method for controlling the grain size distribution in cast parts made from nickel-based superalloys. Such methods of this type, generally, employ the use of different inoculant concentration levels to balance the differences in cooling rates that occur at different regions of the cast part in order to achieve the desired microstructure of the cast part.

US Patent:

59263938, Jul 20, 1999

Filed:

Oct 11, 1996

Appl. No.:

8/729997

Inventors:

Hsin-Pang Wang - Rexford NY
Erich Otto Teutsch - Richmond MA
Martin Kin-Fei Lee - Schenectady NY
Erin Marie Perry - Niskayuna NY
Rick Francis Fiumara - Waterford NY
Srikanth Nanguneri - Clifton Park NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

G06F 1700

US Classification:

364488

Abstract:

The present invention discloses a method for designing a profile extrusion die for shaping a polymer resin material into a profile having a plurality of sections. In the present invention, a plurality of operating conditions for shaping the resin material into the profile are determined. The dimensions of each of the plurality of sections of the profile are then specified. The profile dimensions include width and thickness. Extrusion information for the polymer resin including die swell/drawdown and flow balance is obtained. Die dimensions for shaping the profile in accordance with the operating conditions, the profile dimensions, and the extrusion information are then determined.

US Patent:

57400741, Apr 14, 1998

Filed:

Nov 15, 1996

Appl. No.:

8/751043

Inventors:

Hsin-Pang Wang - Rexford NY
Erin Marie Perry - Niskayuna NY
Harold John Jenkins - Amsterdam NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

C06F 1750

US Classification:

364500

Abstract:

A method for filling a compartment cavity, such as a refrigerative unit cavity, with a foam produced by an expansion and solidification of a foaming mixture of predetermined chemicals. A known amount of the foaming mixture is created in a test chamber cavity and preselected parameters (such as free surface height and pressure) are measured to obtain the average density and apparent viscosity of the foam as a function of time. A computer program uses the average density and apparent viscosity data to simulate the foaming process for various starting quantifies and starting locations of the foaming mixture. A preferred quantity and location are chosen from a particular computer run which satisfies predetermined fill criteria. The preferred quantity of the foaming mixture is then created at the preferred location in the compartment cavity.

US Patent:

62565974, Jul 3, 2001

Filed:

Jul 10, 1998

Appl. No.:

9/113742

Inventors:

Hsin-Pang Wang - Rexford NY
Erin Marie Perry - Niskayuna NY
Michael Charles Ostrowski - Glenville NY
Andrew James Worsey - Brentwood TN
Sharon Trombly Swede - Piedmont SC

Assignee:

General Electric Company - Schenectady NY

International Classification:

G06F 9455
G06F 1750

US Classification:

703 2

Abstract:

A spray coating simulation for a robotic spray gun assembly imports a discretized model of an object geometry. Next, the simulator imports a numerically characterized spray pattern file and a robot motion file having a plurality of motion positions, dwell times and orientations defining a motion path of the spray gun. The individual motion positions within the motion file are read and a determination is made as to which portions of the object geometry are visible at each motion position. Next, a coating thickness at each visible portion of the object geometry is computed, based on the specified spray pattern data, the dwell time and the orientation of the robot motion path, for each motion position. Finally, the total coating thickness over the object geometry is calculated.

US Patent:

51640970, Nov 17, 1992

Filed:

Feb 1, 1991

Appl. No.:

7/649632

Inventors:

Hsin-Pang Wang - Rexford NY
Erin M. Perry - Scotia NY
Yuan Pang - North Reading MA

Assignee:

General Electric Company - Schenectady NY

International Classification:

H05B 720

US Classification:

222590

Abstract:

A nozzle assembly design and a method for making the nozzle assembly, as well as a method for controlling a continuous skull nozzle process employing the nozzle assembly are provided wherein the cooling heat transfer coefficient at the nozzle is increased to maintain a steady-state solidified layer of a noncontaminating liner material, the cooling heat transfer coefficient being increased by reducing the contact resistance between a nozzle outer wall member and an inner liner made of the noncontaminating material, the reduction in contact resistance being achieved by shrink-fitting the nozzle outer wall member around the inner liner to increase the contact pressure between those members.