Abstract: A release lined pressure sensitive adhesive flexible graphite sheet article is provided having low thermal resistance properties comparable to the flexible graphite material itself when compared to prior art PSA sheet products and wherein the release liner is easily removed with the sheet is to be used without any significant delamination of the flexible graphite. The flexible graphite sheet comprises a flexible graphite substrate, an adhesive primer coating thereon, a pressure sensitive adhesive coating on the adhesive primer coating and a release liner applied to the pressure sensitive adhesive coating. Double sided pressure sensitive adhesive flexible graphite sheets can also be made using the method of the invention.
Type:
Grant
Filed:
October 7, 1998
Date of Patent:
June 12, 2001
Assignee:
UCAR Graph-Tech Inc.
Inventors:
Jing-Wen Tzeng, George Getz, Jr., Thomas William Weber
Abstract: Spray cooled side wall and tap hole cover for an eccentric bottom tap (EBT) electric furnace which is unitary, i.e. one-piece, and has an inter-connected coolant supply and inter-connected spent coolant drain.
Type:
Grant
Filed:
May 24, 2000
Date of Patent:
February 6, 2001
Assignee:
South Carolina Systems, Inc.
Inventors:
Mark Thomas Arthur, Frank Henry Miner, Gordon Raymond Roberts
Abstract: Jet nozzle for providing a solid cone jet having a housing with a cylindrical bore with different sized removeable caps at each end, one cap having an outwardly flaring nozzle portion and the other cap having an inner surface with discrete raised portions. A washer with an integral key is provided to engage a notch as the fluid inlet means for the nozzle to lock the nozzle in a pre-determined orientation.
Type:
Grant
Filed:
August 18, 1998
Date of Patent:
July 25, 2000
Assignee:
South Carolina Systems, Inc.
Inventors:
Frank Henry Miner, Jr., Mark Thomas Arthur
Abstract: Flexible graphite sheet having embedded ceramic fibers extending from its surfaces into the sheet to increase the permeability of the sheet to resin.
Type:
Grant
Filed:
August 19, 1998
Date of Patent:
June 13, 2000
Assignee:
UCAR Carbon Technology Corporation
Inventors:
Robert Angelo Mercuri, Joseph Paul Capp, Jeffrey John Gough
Abstract: An electrically conductive seal comprising first and second thin sheets of flexible graphite for bonding together individual electrical fuel cells into an assembly in the form of a stack in which the individual electrical fuel cells are electrically connected together by the electrically conductive seal.
Type:
Grant
Filed:
June 3, 1998
Date of Patent:
May 9, 2000
Assignee:
UCAR Carbon Technology Corporation
Inventors:
Robert Angelo Mercuri, Jeffrey John Gough
Abstract: Flexible graphite sheet having embedded ceramic fibers extending from its surfaces into the sheet to increase the permeability of the sheet to resin which is grooved by mechanical deformation into a shape useful as a flow field plate in fuel cells, having a thin sheet of flexible graphite affixed to the grooved sheet to provide support therefor.
Type:
Grant
Filed:
July 7, 1998
Date of Patent:
March 14, 2000
Assignee:
UCAR Carbon Technology Corporation
Inventors:
Robert Angelo Mercuri, Jeffrey John Gough
Abstract: Flexible graphite sheet is made by compressing a mixture of fine particle of intercalated, exfoliated, expanded natural graphite with fine particles of intercalated, unexpanded, expandable particles of natural graphite, the unexpanded particles being more finely sized than the expanded particles. The resulting sheet of flexible graphite exhibits improved fire retardant and sealability properties.
Abstract: Spray cooled roof assembly for a metallurgical vessel, e.g. an electric arc furnace, comprising two spray cooled components, one of which covers a major portion of the furnace, and the other component of the roof assembly having an integral spray cooled extension for the removal of heated gases from the furnace.
Type:
Grant
Filed:
August 13, 1998
Date of Patent:
December 7, 1999
Assignee:
Ucar Carbon Technology Corporation
Inventors:
Frank Henry Miner, Jr., Mark Thomas Arthur
Abstract: Flexible graphite sheet having embedded ceramic fibers extending from its surfaces into the sheet to increase the permeability of the sheet to resin. The resin impregnated sheet is formed into a sealing gasket.
Type:
Grant
Filed:
July 2, 1997
Date of Patent:
November 23, 1999
Assignee:
UCAR Carbon Technology Corporation
Inventors:
Robert Angelo Mercuri, Joseph Paul Capp, Jeffrey John Gough
Abstract: Flexible graphite sheet is made by compressing a mixture of fine particle of intercalated, exfoliated, expanded natural graphite with fine particles of intercalated, unexpanded, expandable particles of natural graphite, the unexpanded particles being more finely sized than the expanded particles. The resulting sheet of flexible graphite exhibits improved fire retardant and sealability properties.
Abstract: Flexible graphite sheet is made by compressing a mixture of fine particle of intercalated, exfoliated, expanded natural graphite with fine particles of intercalated, unexpanded, expandable particles of natural graphite admixed with small amounts of a phosphorous bearing compound, the unexpanded particles being more finely sized than the expanded particles. The resulting sheet of flexible graphite exhibits improved fire retardant and sealability properties and additionally resistance to oxidation and corrosion.
Type:
Grant
Filed:
July 2, 1997
Date of Patent:
November 9, 1999
Assignee:
Ucar Carbon Technology Corporation
Inventors:
Robert Angelo Mercuri, David Paul Blain, Joe Tom McGlamery
Abstract: An electrically conductive seal for bonding together individual electrical fuel cells into an assembly in the form of a stack in which the individual electrical fuel cells are electrically connected together by the electrically conductive seal.
Type:
Grant
Filed:
September 19, 1997
Date of Patent:
November 2, 1999
Assignee:
UCAR Carbon Technology Corporation
Inventors:
Robert Angelo Mercuri, Jeffery John Gough
Abstract: Flexible graphite sheet having embedded ceramic fibers extending from its surfaces into the sheet to increase the permeability of the sheet to resin.
Type:
Grant
Filed:
April 4, 1997
Date of Patent:
May 11, 1999
Assignee:
UCAR Carbon Technology Corporation
Inventors:
Robert Angelo Mercuri, Joseph Paul Capp, Jeffrey John Gough
Abstract: Flexible graphite sheet having embedded ceramic fibers extending from its surfaces into the sheet to increase the permeability of the sheet to resin which is grooved by mechanical deformation into a shape useful as a flow field plate in fuel cells.
Type:
Grant
Filed:
July 25, 1997
Date of Patent:
March 23, 1999
Assignee:
UCAR Carbon Technology Corporation
Inventors:
Robert Angelo Mercuri, Joseph Paul Capp, Jeffrey John Gough
Abstract: Spray cooled roof for a metallurgical furnace in the form of an assembly of separate hollow metal sections, each of which has a separate spray cooling system.
Abstract: Flexible graphite sheet is made by compressing a mixture of relatively large particles of intercalated, exfoliated, expanded natural graphite with smaller particles of intercalated, exfoliated expanded, expanded particles of natural graphite. The resulting sheet of flexible graphite exhibits increased electrical conductivity through the thickness ("c" direction) of the sheet and improved sealability perpendicular to the "c" direction.
Abstract: A process for converting coal tar containing quinoline-insoluble particles (Q.I.) produces a substantially Q.I.-free coal tar pitch and a separate, Q.I.-containing coal tar pitch. Dehydrated coal tar, soft coal tar pitch or hard coal tar pitch are subjected to continuous cross flow filtration in a circulation loop to obtain a substantially Q.I.-free stream and, concurrently, a Q.I.-containing stream. The two streams are then separately subjected to further fractionation, if any, to produce the substantially Q.I.-free hard coal tar pitch and separate Q.I.-containing hard coal tar pitch.
Type:
Grant
Filed:
September 27, 1996
Date of Patent:
December 1, 1998
Assignee:
UCAR Carbon Technology Corporation
Inventors:
Thomas Harry Orac, Ching F. Chang, Irwin C. Lewis, Richard L. Shao
Abstract: Method and assembly for reinforcing flexible graphite by fusion bonding a film of thermoplastic polymer to the flexible graphite to form a laminiated product. One side of the thermoplastic polymer is raised to its softening temperature to cause it to bond to the flexible graphite while the opposite side thereof is maintained at a temperature below its softening point.
Type:
Grant
Filed:
July 3, 1996
Date of Patent:
November 3, 1998
Assignee:
UCAR Carbon Technology Corporation
Inventors:
Ronald Albert Howard, Robert Angelo Mercuri
Abstract: This invention relates to chemically modified graphite particles:(a) that are useful in alkali metal-containing electrode of a electrochemical cell comprising:(i) the electrode,(ii) a non-aqueous electrolytic solution comprising an organic aprotic solvent which solvent tends to decompose when the electrochemical cell is in use, and an electrically conductive salt of an alkali metal, and(iii) a counterelectrode; and(b) that are chemically modified with fluorine, chlorine, iodine or phosphorus to reduce such decomposition.This invention also relates to electrodes comprising such chemically modified graphite and a binder and to electrochemical cells containing such electrodes.
Type:
Grant
Filed:
May 29, 1996
Date of Patent:
May 26, 1998
Assignee:
Ucar Carbon Technology Corporation
Inventors:
Ronald Alfred Greinke, Irwin Charles Lewis
Abstract: A furnace for pre-heating carbon bodies prior to pitch impregnation utilizing electrical current flow through the body along its longitudinal axis. The furnace is an apparatus which includes a structural steel framework with roller assemblies to support a carbon body. Electrical contacts and pressing assemblies are provided for establishing pressing forces on the carbon body and the apparatus is configured so that a carbon body can be received on the roller assemblies and contacted by the electrical contact means by adjustment of the pressing assemblies.
Type:
Grant
Filed:
May 31, 1995
Date of Patent:
May 12, 1998
Assignee:
UCAR Carbon Technology Corporation
Inventors:
Allan Webster Intermill, Charles Chris Nagy