Patents by Inventor Ronald G. Martin
Ronald G. Martin 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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Patent number: 7244365Abstract: This invention relates to a process for safely decontaminating the chill water used in meat processing. The decontaminant used in the process is chlorine dioxide.Type: GrantFiled: October 24, 2003Date of Patent: July 17, 2007Assignee: Ashland Licensing and Intellectual Property LLCInventors: Scott A. Marckini, Ronald G. Martin, Russell L. Sims
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Patent number: 6660422Abstract: A sealant system 13 for a manifold 10 of a proton exchange membrane fuel cell includes low temperature cured or heat cured silicone rubber bridges 14, 14a, 14c between the end plates 9 to compensate for the uneven edges of various fuel cell component layers, and a layer 15 of silicone rubber foam or sponge, or a molded silicone rubber gasket 15a, extending across the bridges and along the end plates, around the entire contact perimeter surfaces of the manifold, to seal the manifold to the fuel cell. The cured silicone rubber may extend along the end plates between the bridges. A rubber strip 20 may be adhered to the silicone rubber bridges and end plates. The bridges may comprise a first layer 22 of low shrinkage self-leveling RTV liquid rubber with viscosity in the range of 10,000-20,000 cps and a second layer 14 of RTV liquid rubber.Type: GrantFiled: June 15, 2001Date of Patent: December 9, 2003Assignee: UTC Fuel Cells, LLCInventors: Myron Krasij, Bryan F. Dufner, Ronald G. Martin
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Publication number: 20010055708Abstract: A sealant system 13 for a manifold 10 of a proton exchange membrane fuel cell includes low temperature cured or heat cured silicone rubber bridges 14, 14a, 14c between the end plates 9 to compensate for the uneven edges of various fuel cell component layers, and a layer 15 of silicone rubber foam or sponge, or a molded silicone rubber gasket 15a, extending across the bridges and along the end plates, around the entire contact perimeter surfaces of the manifold, to seal the manifold to the fuel cell. The cured silicone rubber may extend along the end plates between the bridges. A rubber strip 20 may be adhered to the silicone rubber bridges and end plates. The bridges may comprise a first layer 22 of low shrinkage self-leveling RTV liquid rubber with viscosity in the range of 10,000-20,000 cps and a second layer 14 of RTV liquid rubber.Type: ApplicationFiled: June 15, 2001Publication date: December 27, 2001Inventors: Myron Krasij, Bryan F. Dufner, Ronald G. Martin
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Patent number: 6050331Abstract: The coolant plate component of a fuel cell assembly is formed from a plate made from graphite particles that are bonded together by a fluorocarbon polymer binder and which encapsulate a serpentine coolant circulation tube. The coolant plate component is non-porous. The graphite particles are preferably flakes which pack together very tightly, and require only a minor amount of the polymer binder to form a solid plate. The plate will provide enhanced heat transfer, will conduct electrons, and will block electrolyte migration from cell to cell in a fuel cell stack due to its construction. The composition of the plate is graded so as to provide a varied coefficient of thermal expansion as measured through the thickness of the plate so as to reduce thermal stresses imposed on the fuel cell stack. The coolant circulation tube has a roughened outer surface which enhances adhesion of the encapsulating graphite flake/binder mixture without inhibiting heat transfer.Type: GrantFiled: March 22, 1996Date of Patent: April 18, 2000Assignee: International Fuel Cells L.L.C.Inventors: Richard D. Breault, Ronald G. Martin, Robert P. Roche, Glen W. Scheffler, Joseph J. O'Brien
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Patent number: 6039823Abstract: The graphitized composite article of the present invention is formed by embedding carbon fiber felt in a matrix of a carbon filler; a thermosetting resin and a solvent; curing the composite article; then, carbonizing and graphitizing the cured composite article to form the graphitized composite article for use as a separator plate capable of substantially inhibiting mixing of hydrogen and oxygen and/or the loss of electrolyte within a fuel cell stack. The graphitized composite article may be a graphitized laminate.Type: GrantFiled: March 9, 1998Date of Patent: March 21, 2000Assignee: International Fuel CellsInventors: Albert P. Grasso, Ronald G. Martin, Robert P. Roche
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Patent number: 5726105Abstract: The graphitized composite article of the present invention is formed by embedding carbon fiber felt in a matrix of a carbon filler; a thermosetting resin and a solvent; curing the composite article; then, carbonizing and graphitizing the cured composite article to form the graphitized composite article for use as a separator plate capable of substantially inhibiting mixing of hydrogen and oxygen and/or the loss of electrolyte within a fuel cell stack. The graphitized composite article may be a graphitized laminate.Type: GrantFiled: April 20, 1995Date of Patent: March 10, 1998Assignee: International Fuel CellsInventors: Albert P. Grasso, Ronald G. Martin, Robert P. Roche
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Patent number: 5558955Abstract: The reactant flow field on the cathode side of a fuel cell assembly is formed from a plate made from carbon particles that are bonded together by a fluorocarbon polymer binder. The cathode reactant flow field is non-porous, and is hydrophobic due to the presence of the poller binder. The carbon particles are preferably carbon flakes which pack together very tightly, and require only a minor amount of the polymer binder to form a solid plate. The plate will provide cathode reactant flow channels, will conduct electrons and heat and will minimize acid absorption in a fuel cell stack due to its hydrophobic nature.Type: GrantFiled: October 7, 1994Date of Patent: September 24, 1996Assignee: International Fuel Cells CorporationInventors: Richard D. Breault, Ronald G. Martin, Robert P. Roche, Gregory R. Kline
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Patent number: 5523175Abstract: A fuel cell component that includes a porous fuel cell plate and a solid frame contiguously extending all around the fuel cell plate is made by first forming an integral plate-shaped porous body including a central portion constituting the fuel cell plate and a peripheral portion integral with and circumferentially completely surrounding the central portion, and then impregnating the pores of only the peripheral portion with a quantity of initially flowable but solidifiable impregnating material such that the impregnating material is accommodated in and completely fills such pores and makes the peripheral portion solid and completely fluid-impermeable upon solidification of the impregnating material to constitute the frame.Type: GrantFiled: January 21, 1994Date of Patent: June 4, 1996Assignee: International Fuel Cells CorporationInventors: Daniel Beal, Ronald G. Martin, Michael E. Gorman
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Patent number: 5328542Abstract: A composite plate-shaped fuel cell component includes two electrically conductive porous plates juxtaposed and in area electrical contact with one another at an interface, and a sealant body accommodated in and completely filling the pores of a sealed region of each of the porous plates that extends to a predetermined distance from the interface into the respective porous plate to form a fluid impermeable barrier between the porous plates and to bond the porous plates to one another at the interface. The sealant body includes at least one layer of a fluoroelastomer sealant that fills all of the pores of at least one of the sealed regions.Type: GrantFiled: December 26, 1991Date of Patent: July 12, 1994Assignee: International Fuel Cells CorporationInventors: Albert P. Grasso, Robert P. Roche, Ronald G. Martin
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Patent number: 4929517Abstract: A seal structure 58 between adjacent porous plates 18, 20 and a method of making the seal structure for an electrochemical cell are disclosed. Various construction details are developed which facilitate fabrication and assembly. In one embodiment, the adjacent porous plates are electrolyte reservoir plates joined together at a three-layer seal structure to form an integral assembly.Type: GrantFiled: October 31, 1989Date of Patent: May 29, 1990Assignee: International Fuel Cells Corp.Inventors: Warren L. Luoma, Ronald G. Martin, Richard D. Breault
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Patent number: 4913706Abstract: A seal structure 58 between adjacent porous plates 18,20 and a method of making the seal structure for an electrochemical coil are disclosed. Various construction details are developed which facilitate fabrication and assembly. In one embodiment, the adjacent porous plates are electrolyte reservoir plates joined together at a three-layer seal structure to form an integral assembly.Type: GrantFiled: September 19, 1988Date of Patent: April 3, 1990Assignee: International Fuel Cells CorporationInventors: Warren L. Luoma, Ronald G. Martin, Richard D. Breault
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Patent number: 4695518Abstract: A matrix for holding the electrolyte within a phosphoric acid fuel cell is made from silicon carbide and a binder of polyestersulfone. Preferably the matrix consists of 10-20 weight percent polyethersulfone with a balance of silicon carbide. The matrix has improved strength, wettability and bubble pressure compared to the best known prior art matrix.Type: GrantFiled: April 10, 1985Date of Patent: September 22, 1987Assignee: United Technologies CorporationInventors: John C. Trocciola, Joseph Powers, Ronald G. Martin
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Patent number: 4374185Abstract: A seal material especially adapted for phosphoric acid fuel cell stack sealing is described comprising an unfilled, unoiled high molecular weight polytetrafluoroethylene. Although the seal material is especially adapted as the regular seal around the plenums separating the oxygen and hydrogen gas inlets and outlets, it can also be used as a plenum or stack crack sealer. The material provides seal integrity and stability at temperatures in excess of 400.degree. F. (204.degree. C.)., e.g. 400.degree. F. to 450.degree. F. (204.degree. C. to 232.degree. C.), in a corrosive chemical environment at differential pressures above 50 psi (e.g. 50 psi to 80 psi). It can be used in electrochemical cells in general where high temperature, high pressure, corrosive environments prevail.Type: GrantFiled: May 14, 1981Date of Patent: February 15, 1983Assignee: United Technologies CorporationInventors: Joseph Powers, John C. Trocciola, Ronald G. Martin
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Patent number: 4368941Abstract: A jack frame for an electrical jack of the type having a plurality of jack springs and adapted for side-by-side mounting in an electrical jack panel. One embodiment includes a single piece of jack frame material bent into the desired configuration. A second embodiment includes a frame which is die cast in a single casting operation. The frames of both embodiments have improved rigidity and consistency.Type: GrantFiled: March 6, 1980Date of Patent: January 18, 1983Assignee: Magnetic Controls CompanyInventor: Ronald G. Martin
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Patent number: 4157327Abstract: A thermally conductive caulk particularly suited for use in a phosphoric acid fuel cell is made by mixing graphite into a stable aqueous dispersion of polytetrafluoroethylene and fluorinated ethylene propylene such that the solids floc to form a paste. The paste is applied to the part to be caulked and then dried and heat treated. Caulks made according to the present invention have good thermal conductivity and absorb very little phosphoric acid.Type: GrantFiled: December 27, 1977Date of Patent: June 5, 1979Assignee: United Technologies CorporationInventors: Ronald G. Martin, Joseph Powers, John C. Trocciola
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Patent number: D377001Type: GrantFiled: December 18, 1995Date of Patent: December 31, 1996Inventors: Ronald G. Martin, Patricia A. Martin