Rajasingh S Israel

6394755, May 28, 2002

Jan 24, 2000

09/489716

William R. Stowell - Rising Sun IN
Bangalore A. Nagaraj - West Chester OH
John F. Ackerman - Laramie WY
Rajasingh S. Israel - Westlake OH

General Electric Company - Schenectady NY

F01D 514

416241R, 416241 B

A tightly adherent anti-stick coating applied over coated turbine components of gas turbine engines. The tightly adherent coating is an oxide of at least one metal selected from the group consisting of Pt, W, group and group metals of the periodic table and Si, Ge and Sn of group. The oxide is applied directly over existing environmental coatings, and thermal barrier coatings. It can also be applied directly to substrate material and to areas that are not within the combustion exhaust gases, such as platform portions and shank portions of airfoils including turbine blades. The oxide is conveniently applied to a uniform thickness of no greater than about 10 microns, and prevents the build-up of corrosion products and other products of combustion from the gases, thereby increasing the life expectancy of the component.

6441541, Aug 27, 2002

Aug 25, 1999

09/382744

Charles D. Tschetter - Mayfield Village OH
Rajasingh S. Israel - Westlake OH
Denis A. Lynch - South Euclid OH

General Electric Company - Schenectady NY

H01J 6140

313113, 313632, 313112, 313580

A lamp including a light source ( ) housed within a reflector ( ), the reflector further includes a coating ( ) over a major portion of an inner ( ) and/or outer surface ( ). The coating ( ) is comprised of multiple layers of high and low index of refraction materials to provide at least 90% reflectance between about 425 and 750 nanometers and less than 20% reflectance peaks between about 900 nanometers and 1800 nanometers.

6462465, Oct 8, 2002

Mar 14, 2000

09/525099

Rajasingh Israel - Westlake OH
Carl Gunter - Twinsburg OH
Ashfaqul Chowdhury - Mayfield Heights OH

General Electric Company - Schenectady NY

H01J 6434

313 25, 313112, 313634, 313113

A shroud ( ) for a light producing element ( ). The shroud having an elongated reflecting portion ( ) with a curved cross-section and an elongated light-transmissive portion ( ) with a curved cross-section. A cavity in which the light producing element is disposed is formed between the reflecting portion and the light-transmissive portion. A lamp ( ) having a shroud ( ) according to the invention is also disclosed as is a method of fabricating a shroud according to the invention.

6471376, Oct 29, 2002

Aug 17, 2000

09/641262

Charles D. Tschetter - Mayfield Village OH
Rajasingh Israel - Westlake OH
Carl Gunter - Twinsburg OH

General Electric Company - Schenectady NY

F21V 700

362296, 362341, 362327

A light source comprising a light generating element and a reflector, said reflector comprised of a generally parabolic shaped body including an at least substantially closed end and an open end, the light source disposed generally adjacent said closed end, said reflector including a light reflecting coating on both an internal and an external surface of said body, wherein a portion of said external surface of said body adjacent the closed end of the reflector is substantially devoid of said coating.

6494997, Dec 17, 2002

Aug 18, 2000

09/641308

Rajasingh Israel - Westlake OH
Tianji Zhao - Mayfield Heights OH
Rolf Sverre Bergman - Cleveland Heights OH
Kenneth Marsik - Parma OH

General Electric Company - Schenectady NY

C23C 1435

20419212, 20429815, 20429817, 20429826, 20429827, 20429828

A magnetron sputtering device and method for applying an interference layer to a substrate includes a magnetron sputtering chamber (A) which houses a substrate carrying assembly (B). The substrate carrying assembly comprises a primary rotation table ( ), rotating about its central vertical axis ( ) and at least one secondary table ( ) mounted to an upper surface ( ) of the primary rotation table. Substrates ( ) are either horizontally or vertically loaded on to the secondary table. The substrates rotate about their symmetrical axis. First and second targets ( ) are housed by the chamber and are disposed on opposite sides of the chamber. The primary rotation table rotates the substrates between a position adjacent a first target where a layer having a low refractive index is applied to the substrates and a position adjacent a second target where a layer having a high refractive index is applied to the substrates.

6534903, Mar 18, 2003

Feb 25, 2002

09/683862

Clifford Lawrence Spiro - Naperville IL
Rajasingh Israel - Westlake OH
Peter Brown - Twinsburg OH

General Electric Company - Schenectady NY

H01J 516

313113, 313112, 313635, 359584, 359586, 359359

An interference coating ( ) for reflecting both visible light and a portion of the region of the infrared spectrum is disclosed. The coating includes a dichroic structure of a plurality of layers of a material having a low index of refraction and a plurality of layers of a material having a high index of refraction. The coating has an average spectral high reflectance of at least 80% for wavelengths in the visible light section of the electromagnetic spectrum and of at least 50% for wavelengths in a portion of the infrared section of the electromagnetic spectrum at least 150 nm wide.

6710520, Mar 23, 2004

Aug 24, 2000

09/645225

Peter W. Brown - Twinsburg OH
Rajasingh Israel - Westlake OH
Carl Gunter - Twinsburg OH

General Electric Company - Schenectady NY

H01J 6140

313112, 313110, 313113, 313114, 313635, 313578, 313580, 359584, 359586, 359885

An optical interference coating for reflecting infra-red radiation and transmitting visible light. The coating comprises alternating layers of high index of refraction material and low index of refraction material. As the total number of layers increases, the ratio of high index of refraction material to low index of refraction material must also increase.

6773141, Aug 10, 2004

Mar 14, 2002

10/098772

Tianji Zhao - Mayfield OH
Rajasingh Schwartz Israel - Westlake OH
Frederick Walter Dynys - Chagrin Falls OH
Thomas Gene Parham - Livermore CA

General Electric Company - Schenectady NY

H01J 316

362257, 362635, 362296, 362310, 362341, 362343

A reflector lamp has a generally parabolic shaped housing ( ) with an interior surface coated with a layer ( ) of silver having a protective layer ( ) of a stable protective oxide, such as silica, disposed thereon. An intermediate layer ( ), such as a layer of elemental silicon, protects the silver layer during deposition of the silica layer and is completely or substantially consumed during formation of the silica layer. The lamp includes a light source ( ) having a longitudinal axis (x) disposed on the parabolic reflector axis and preferably disposed outward of the parabolic focus (F). During lamp fabrication, the protective coating is preferably annealed to improve reflectance. The preferred lamp will have a lumens per watt greater than 14.