Kim Arnold Wynns

US Patent:

6537388, Mar 25, 2003

Filed:

Oct 27, 2000

Appl. No.:

09/698856

Inventors:

Kim A. Wynns - Spring TX
George T. Bayer - Tarentum PA

Assignee:

Alon, Inc. - Leechburg PA

International Classification:

C23C 806

US Classification:

148279, 178283, 427250, 427252, 4273762, 4273768

Abstract:

Chromium, silicon, aluminum, and optionally manganese are diffused onto the surface of a high temperature alloy product, to provide a coating having improved resistance to carburization and catalytic coke formation and smoother surfaces for high temperature hydrocarbon environments. Preferably, a first layer of chromium or chromium and silicon is deposited and diffusion heat-treated and covered by the second layer of aluminum or aluminum-silicon. The inner layer contains a minimum of 8 weight percent chromium above that contained in the substrate alloy. The outer layer contains a minimum of 20 weight percent aluminum at the coating surface. The coating system is then aged to yield the improved coating that has 60 to 90 weight percent chromium at the surface. Each layer or the combination of layers is diffusion heat treated to cause a diffusion depth ranging from 0. 006 inch (0.

US Patent:

6592941, Jul 15, 2003

Filed:

Nov 8, 1996

Appl. No.:

08/745199

Inventors:

George T. Bayer - Tarentum PA
Kim A. Wynns - Spring TX

Assignee:

Alon, Inc. - Tarentum PA

International Classification:

C23C 1644

US Classification:

427253, 4273763, 4273764, 4273837, 148279, 148283

Abstract:

A method of forming an aluminum silicon diffusion coating on a surface of an alloy product utilizes a diffusion mixture containing by weight 1% to 5% aluminum, 0. 5% to 5% silicon, 0. 5% to 3% ammonium halide activator and the balance an inert filler. The product to be coated is placed in a retort with the diffusion mixture covering the product surfaces to be coated. Upon heating aluminum and silicon will diffuse onto the product surfaces forming the aluminum and silicon diffusion coating.

US Patent:

20060222879, Oct 5, 2006

Filed:

Jul 10, 2003

Appl. No.:

10/616712

Inventors:

George Bayer - Tarentum PA, US
Kim Wynns - Spring TX, US

International Classification:

B22D 25/00
B32B 15/01

US Classification:

428610000, 428650000, 428939000

Abstract:

Aluminum-silicon diffusion coated alloy products have a surface of aluminum-silicon diffusion coating of greater than 180 microns thick formed on workpieces made from an iron, nickel, cobalt or copper base alloys. Preferably the diffusion coating has a thickness of at least 200 to 250 microns.

US Patent:

20070040055, Feb 22, 2007

Filed:

Aug 17, 2005

Appl. No.:

11/205385

Inventors:

Robert Riendeau - Springfield MA, US
Francis Federico - Longmeadow MA, US
Kim Wynns - Swedesboro NJ, US

International Classification:

B02C 13/00

US Classification:

241023000, 241065000, 241188100

Abstract:

A method and apparatus to pulverize materials directs solid materials through a generally horizontal chamber. A rotating center element that directs the material along the chamber by basic thrust using projections such as tines, paddles, knives or blades to develop motion and resulting kinetic energy of the material. The material is directed along the axis from the material inlet toward the material outlet and reverses flow at the end of the chamber to recycle back toward the material inlet causing particles of material to collide and fracture. The rotating speed of the center element can be adjusted to affect the grinding rates and particle size distribution. The rotating center element can also be fixtured to optimize material size reduction, differences in material density and the horizontal chamber can be tilted in a declined or inclined plane to affect the grinding rates and size reduction. This method of grinding and pulverizing can accommodate material feed stocks that have as much as 10% moisture since the grinding action creates heat and can drive off the moisture from the material.

US Patent:

20080166493, Jul 10, 2008

Filed:

Jan 9, 2008

Appl. No.:

11/971468

Inventors:

T. Danny Xiao - Willington CT, US
Xinqing Ma - Willington CT, US
Kim Arnold Wynns - Anchorage AK, US
Meidong Wang - Willington CT, US
Jinxiang Dai - Storrs Mansfield CT, US

Assignee:

INFRAMAT CORPORATION - Farmington CT

International Classification:

C08K 3/22
C08K 3/36
B05D 1/04
B05D 1/02
B05D 1/28

US Classification:

427447, 524430, 524403, 524413, 524407, 524493, 524589, 524604, 524612, 1062864, 1062865, 1062861, 524588, 427452, 427453, 427427, 4274274, 42742801, 427429, 427487

Abstract:

Anti-fouling coating compositions and methods of making and using those compositions are provided. In an embodiment, a coating composition comprises ceramic nanoparticles, wherein the coating composition is capable of inhibiting contaminants from adhering to a solid surface.

US Patent:

61652865, Dec 26, 2000

Filed:

May 5, 1999

Appl. No.:

9/305551

Inventors:

George T. Bayer - Tarentum PA
Kim A. Wynns - Spring TX

Assignee:

Alon, Inc. - Leechburg PA

International Classification:

C22F 104

US Classification:

148220

Abstract:

A method of aluminum diffusion coating the surface of an iron-, nickel-, cobalt-, or titanium-base alloy product begins with cleaning and providing an anchor profile on the surface of the product, followed by depositing with an appropriate thermal spray method at least 4 mils (0. 1016 millimeters) thickness of a minimum 85 wt. % aluminum alloy, which can also contain up to 12 wt. % silicon. A MCrAlX-type coating layer is also thermally sprayed on the substrate surface before the aluminum alloy is sprayed. The thermal sprayed products are heat treated in a sealed retort at a temperature of between 900. degree. F. and 1200. degree. F. (482. degree. C. and 649. degree. C. ) and then maintained at that temperature for a period of at least one hour to ensure the formation of a strong metallurgical bond between the aluminum alloy layer and the product. The retort temperature is then elevated to between 1400. degree. F. and 2000. degree. F. (760. degree. C. and 1093. degree. C. ) and held at that temperature for between 0.

US Patent:

59724293, Oct 26, 1999

Filed:

Nov 3, 1997

Appl. No.:

8/962753

Inventors:

George T. Bayer - Tarentum PA
Kim A. Wynns - Spring TX

Assignee:

Alon, Inc. - Tarentum PA

International Classification:

C23C 1622

US Classification:

427253

Abstract:

A method of diffusion coating a surface of an alloy product containing at least 5 wt. % iron with a chromium-silicon coating uses a dual activator containing a fluoride salt and a chloride salt, at least one of those salts particularly being ammonium chloride or another ammonium halide salt. The pack mix contain at least 20% chromium and a chromium to silicon ratio of at least 10 to 1. The workpiece is heated to at least 2050. degree. F. to obtain a coating of at least 10 mils which contains at least 30% chromium. Upon heating the ammonium salt will form a reducing environment containing molecular hydrogen. The presence of molecular hydrogen speeds up the chemical reactions by an additional reduction reaction to create the surface coating which enables the coating reactions to occur shorter hold times.

US Patent:

61396494, Oct 31, 2000

Filed:

Feb 22, 1999

Appl. No.:

9/255596

Inventors:

Kim A. Wynns - Spring TX

Assignee:

Alon, Inc. - Leechburg PA

International Classification:

C23C 880

US Classification:

148277

Abstract:

The inner surface of a high temperature nickel chromium alloy product such as ethylene furnace tubes is cleaned with high temperature hydrogen to prepare the surface for the deposition, diffusion and modification of metals. A first layer of chromium or chromium and silicon is deposited and diffusion heat treated or covered by the second layer of aluminum, magnesium, silicon and manganese and third layer of rare earth metals such as yttrium and zirconium. Each layer or the combination of layers is diffusion heat treated at sufficient time and temperature to cause a diffusion depth ranging from 50 microns to 150 microns with a maximum of 250 microns. The surface is then heated to convert the immediate surface to a spinel and further pretreated with argon and nitrogen to stabilize the surface oxides. The surface of the final coating can be polished to minimize sites for carbon buildup. When ethylene is produced using furnace tubes which are coated in this manner less coking occurs.