Patents by Inventor David M. Kaschak
David M. Kaschak has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20120107555Abstract: A carbon foam article useful for, inter alia, composite tooling or other high temperature applications, which includes a substrate, wherein the substrate includes at least one material selected from carbon foam, extruded graphite, graphite foam, and isomolded graphite. The tool may also include a skin as a working surface and a filler disposed below the skin. The tool has a surface roughness of no more than about 63 micro-inches. Such a tool may be used to make a composite prototype part.Type: ApplicationFiled: January 15, 2010Publication date: May 3, 2012Inventors: Douglas J. Miller, Robert A Mercuri, Irwin C. Lewis, Richard L. Shao, Gary Dale Shives, Gerald F. Hoffert, David M. Kaschak, John Lichtenberg
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Publication number: 20120009415Abstract: An article for tooling composite materials, including a carbon foam, a sealant attached to the carbon foam so as to form a monolithic fine-grain graphite-like surface; and a skin of facesheet materials. The facesheet materials include: a spray-deposited coating of metal; more preferably, a thermal or plasma spray-deposited metal; and most preferably, a plasma sprayed Invar metal. The facesheet materials may optionally include a flash coating. The facesheet materials alternately include plastics, resinous materials and carbon-carbon composite materials.Type: ApplicationFiled: July 8, 2010Publication date: January 12, 2012Inventors: Richard L. Shao, David M. Kaschak
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Patent number: 7892636Abstract: A carbon foam composite including a carbon foam skeleton having a supplemental material therein, the composite useful for, inter alia, a variety of applications including applications requiring durability and water resistance. Also included is a method for making such carbon foam composite materials.Type: GrantFiled: May 1, 2007Date of Patent: February 22, 2011Assignee: GrafTech International Holdings Inc.Inventors: Douglas J. Miller, David M. Kaschak, Richard L. Shao
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Publication number: 20110020631Abstract: A carbon foam article useful for, inter alia, composite tooling or other high temperature applications, which includes a carbon foam substrate, an intermediate material on a surface of the carbon foam substrate, and a tool facing material on an outer surface of the article such that the intermediate material is positioned between the tool facing material and the carbon foam substrate.Type: ApplicationFiled: September 5, 2008Publication date: January 27, 2011Inventors: Douglas J Miller, Robert A. Mercuri, Irwin C. Lewis, Richard L. Shao, Gary Dale Shives, Gerald F. Hoffert, David M. Kaschak
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Publication number: 20100314081Abstract: A graphite-based heat exchanger, especially for use as a solar energy receptor as part of the thermal process in a solar power system, including an energy collection panel, a heat spreader, and a thermal element, wherein the heat spreader is formed of flexible graphite having a density of at least about 0.6 g/cc and a thickness of less than about 10 mm, and the heat spreader further has a first side and a second side, wherein the heat spreader is in a thermal transfer relationship with the thermal element, and wherein the energy collection panel includes at least one sheet or block of graphite.Type: ApplicationFiled: March 14, 2010Publication date: December 16, 2010Inventors: Bradley E. Reis, Mark Segger, James T. Petroski, Robert Anderson Reynolds, III, Julian Norley, Marco Napolitano, Martin David Smalc, Kim E. Fledderman, Andrew Justin Francis, Victor William Leight, David M. Kaschak
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Patent number: 7776430Abstract: An article for tooling composite materials, including a carbon foam, a sealant attached to the carbon foam so as to form a monolithic fine-grain graphite-like surface; and a skin of facesheet materials. The facesheet materials include: a spray-deposited coating of metal; more preferably, a thermal or plasma spray-deposited metal; and most preferably, a plasma sprayed Invar metal. The facesheet materials may optionally include a flash coating. The facesheet materials alternately include plastics, resinous materials and carbon-carbon composite materials.Type: GrantFiled: June 12, 2007Date of Patent: August 17, 2010Assignee: GrafTech International Holdings Inc.Inventors: Richard L. Shao, David M. Kaschak
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Publication number: 20080275150Abstract: A carbon foam composite including a carbon foam skeleton having a supplemental material therein, the composite useful for, inter alia, a variety of applications including applications requiring durability and water resistance. Also included is a method for making such carbon foam composite materials.Type: ApplicationFiled: May 1, 2007Publication date: November 6, 2008Inventors: Douglas J. Miller, David M. Kaschak, Richard L. Shao
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Patent number: 7393442Abstract: The invention comprises novel apparatuses and testing methods for evaluating a fluid diffusion component. The apparatus includes a fluid capable of undergoing oxidation or reduction, a half-cell electrode assembly able to receive the fluid, and a change in acidity indicator in communication with the assembly. An inventive method of the invention includes the steps of passing a fluid capable of undergoing oxidation or reduction through a half-cell electrode assembly to form a sample, contacting the sample with an indicator, and detecting a change in acidity in the indicator.Type: GrantFiled: August 25, 2004Date of Patent: July 1, 2008Assignee: GrafTech International Holdings Inc.Inventor: David M. Kaschak
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Publication number: 20080145642Abstract: An article for tooling composite materials, including a carbon foam, a sealant attached to the carbon foam so as to form a monolithic fine-grain graphite-like surface; and a skin of facesheet materials. The facesheet materials include: a spray-deposited coating of metal; more preferably, a thermal or plasma spray-deposited metal; and most preferably, a plasma sprayed Invar metal. The facesheet materials may optionally include a flash coating. The facesheet materials alternately include plastics, resinous materials and carbon-carbon composite materials.Type: ApplicationFiled: June 12, 2007Publication date: June 19, 2008Inventors: Richard L. Shao, David M. Kaschak
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Patent number: 7105108Abstract: The invention relates to expanded graphite and methods of making the graphite and products that can be made from the graphite made from the inventive process. The invention includes the step of introducing a fluid into at least one of a plurality of interstices of graphite flake, wherein the fluid comprises at least one of a sub-critical point fluid, a near critical point fluid, or a supercritical fluid. The graphite flake is also intercalated with an intercalant and optionally an oxidizing agent. The invention may further include novel techniques of exfoliating the graphite. The invention may be practiced to make nano-sized graphite particles and also graphite composites. Preferred composites which may be made in accordance with the invention include conductive polymeric composites (thermally or electrically), paint composites, battery composites, capacitor composites, and pollution abatement catalyst support composites.Type: GrantFiled: August 15, 2002Date of Patent: September 12, 2006Assignee: Advanced Energy Technology Inc.Inventors: David M. Kaschak, Robert A. Reynolds, III, Daniel W. Krassowski, Brian M. Ford
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Patent number: 6927250Abstract: The invention may be practiced to make graphite composites. Preferred composites which may be made in accordance with the invention include conductive polymeric composites (thermally or electrically), paint composites, battery composites, capacitor composites, and pollution abatement catalyst support composites. One method of making the graphite aforementioned composites includes introducing an intercalant into at least one interstice of at least one flake of natural graphite. The method also includes introducing a fluid into the at least one interstices of the flake. Preferably, the fluid comprises at least one of a sub-critical fluid, near critical point fluid, or a supercritical fluid. Furthermore the method includes blending the flake with a polymer, thereby forming a graphite-polymeric composite.Type: GrantFiled: August 15, 2002Date of Patent: August 9, 2005Assignee: Advanced Energy Technology Inc.Inventors: David M. Kaschak, Robert A. Reynolds, III, Daniel W. Krassowski
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Patent number: 6841387Abstract: The invention comprises novel apparatuses and testing methods for evaluating a fluid diffusion component. The apparatus includes a fluid capable of undergoing oxidation or reduction, a half-cell electrode assembly able to receive the fluid, and a change in acidity indicator in communication with the assembly. An inventive method of the invention includes the steps of passing a fluid capable of undergoing oxidation or reduction through a half-cell electrode assembly to form a sample, contacting the sample with an indicator, and detecting a change in acidity in the indicator.Type: GrantFiled: August 21, 2002Date of Patent: January 11, 2005Assignee: Advanced Energy Technology Inc.Inventor: David M. Kaschak
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Publication number: 20040035790Abstract: The invention comprises novel apparatuses and testing methods for evaluating a fluid diffusion component. The apparatus includes a fluid capable of undergoing oxidation or reduction, a half-cell electrode assembly able to receive the fluid, and a change in acidity indicator in communication with the assembly. An inventive method of the invention includes the steps of passing a fluid capable of undergoing oxidation or reduction through a half-cell electrode assembly to form a sample, contacting the sample with an indicator, and detecting a change in acidity in the indicator.Type: ApplicationFiled: August 21, 2002Publication date: February 26, 2004Inventor: David M. Kaschak
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Publication number: 20040034151Abstract: The invention may be practiced to make graphite composites. Preferred composites which may be made in accordance with the invention include conductive polymeric composites (thermally or electrically), paint composites, battery composites, capacitor composites, and pollution abatement catalyst support composites. One method of making the graphite aforementioned composites includes introducing an intercalant into at least one interstice of at least one flake of natural graphite. The method also includes introducing a fluid into the at least one interstices of the flake. Preferably, the fluid comprises at least one of a sub-critical fluid, near critical point fluid, or a supercritical fluid. Furthermore the method includes blending the flake with a polymer, thereby forming a graphite-polymeric composite.Type: ApplicationFiled: August 15, 2002Publication date: February 19, 2004Applicant: Graftech Inc.Inventors: David M. Kaschak, Robert A. Reynolds, Daniel W. Krassowski
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Publication number: 20040033189Abstract: The invention relates to expanded graphite and methods of making the graphite and products that can be made from the graphite made from the inventive process. The invention includes the step of introducing a fluid into at least one of a plurality of interstices of graphite flake, wherein the fluid comprises at least one of a sub-critical point fluid, a near critical point fluid, or a supercritical fluid. The graphite flake is also intercalated with an intercalant and optionally an oxidizing agent. The invention may further include novel techniques of exfoliating the graphite. The invention may be practiced to make nano-sized graphite particles and also graphite composites. Preferred composites which may be made in accordance with the invention include conductive polymeric composites (thermally or electrically), paint composites, battery composites, capacitor composites, and pollution abatement catalyst support composites.Type: ApplicationFiled: August 15, 2002Publication date: February 19, 2004Applicant: Graftech Inc.Inventors: David M. Kaschak, Robert A. Reynolds, Daniel W. Krassowski, Brian M. Ford