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...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.

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Assignee: GrafTech International Holdings Inc.


Location: Parma, OH
No. of patents: 48

1    
NumberTitleIssue Date
8080127Carbon foam evaporator
A carbon foam evaporator is described which can be used in a wide variety of operating conditions. The evaporator utilizes a carbon foam with a bi-model pore distribution. The carbon foam is thermally stable up to temperatures of at least 300° C., is rigid, and has...
12/20/2011
8067091Dimensionally stable, leak-free graphite substrate
A method for preparing resin-impregnated graphite articles, including providing a sheet of compressed particles of exfoliated graphite having two major surfaces; impregnating the sheet with a first resin system to form a resin-impregnated sheet; surface treating the...
11/29/2011
RE42775Isotropic pitch-based materials for thermal insulation
Insulation materials suited to high temperature applications, such as the insulation of furnaces, are formed from a mixture of pitch carbon fibers, such as isotropic pitch carbon fibers, and a binder comprising a solution of sugar in water. The sugar solution is pre...
10/04/2011
8021750Insulated panel for mine safe rooms
A structural insulated panel for use in a mine safe room, which includes a carbon foam core having a high ratio of compressive strength to density, desirable fire retardant properties, and resistance to environmental stress. The carbon foam structural insulated pane...
09/20/2011
8007660Reduced puffing needle coke from decant oil
A reduced puffing needle coke is formed from decant oil, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to graphitization temperatures. ...
08/30/2011
8007659Reduced puffing needle coke from coal tar distillate
A reduced puffing needle coke is formed, which includes a reduced nitrogen content within the coke so that the coke particles do not experience as much puffing during the formation of graphitized carbon articles produced from such coke upon heating to graphitization...
08/30/2011
8007658Reduced puffing needle coke from coal tar
A reduced puffing needle coke is formed, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to graphitization temperatures. ...
08/30/2011
7993779Low conductivity carbon foam for a battery
A carbon foam battery useful for electrical applications is disclosed which includes a relatively low conductivity low density high porosity carbon foam. ...
08/09/2011
7991039Electric arc furnace monitoring system and method
A system and method for monitoring the operating parameters of an electric arc furnace having a primary electrical circuit comprising a primary current transformer. The method includes monitoring the furnace's primary current transformer; collecting data therefrom; ...
08/02/2011
7972698Carbon foam core panels
The core panel includes a plurality of carbon foam blocks. One or more of the blocks have a cell volume wherein at least about 90% of the cells have a diameter of between at least about 10 microns and about 150 microns. Also at least about 1% of the cell volume of t...
07/05/2011
7892636Carbon foam with supplemental material
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 su...
02/22/2011
7889502Heat spreading circuit assembly
A circuit assembly including a substrate which has a dielectric layer, a heat spreader layer located at a first surface of the substrate, a heat generating component located at a second surface of the substrate, and a thermal pathway in thermal connection between th...
02/15/2011
7835419Optimized graphite electrode pin configuration
A pin for use in connecting graphite electrodes into a joint, where the pin has at least one male tang having a tang factor, defined as the ratio of male tang length to diameter of the electrode into which hit is to be threaded, of at least about 0.60. ...
11/16/2010
7824650Enhanced directional conductivity of graphitizable foam
A graphitizable carbon foam having enhanced directional thermal conductivity is provided. The mesophase portions of a mesophase pitch are aligned with each other to create an oriented mesophase pitch, which is then foamed to provide an oriented pitch foam. The pitch...
11/02/2010
7799428Sandwiched thermal solution
A thermal solution for an electronic device, which is positioned between a heat source and an external surface of the electronic device and/or another component of the electronic device, where the thermal solution facilitates heat dissipation from the heat source wh...
09/21/2010
7799309Area weight uniformity flexible graphite sheet material
A process for enhancing the expansion of intercalated graphite flake is presented. The process includes annealing the graphite flake at a temperature of at least about 3000° C. prior to intercalation and intercalating in the presence of a lubricious additive. ...
09/21/2010
7785712Carbon foam structural insulated panel
A structural insulated panel, which includes a carbon foam core having a high ratio of compressive strength to density, desirable fire retardant properties, and resistance to environmental stress. The carbon foam structural insulated panel also includes a first laye...
08/31/2010
7776430Carbon foam tooling with durable skin
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 m...
08/17/2010
7758779Reinforced resin-derived carbon foam
A reinforced carbon foam material is formed from carbon fibers incorporated within a carbon foam's structure. First, carbon fiber bundles are combined with a liquid resol resin. The carbon fiber bundles separate into individual carbon fiber filaments and disperse th...
07/20/2010
7666270Heat spreader for display panel
The invention presented is a method for applying heat spreaders to a plurality of display panels, including (a) providing a plurality of heat spreader composites, each of which comprises a heat spreader material having an adhesive thereon and a release material posi...
02/23/2010
7660337Lifting apparatus and method of lifting carbon based electrodes
A lifting apparatus for transporting a carbon based electrode having a threaded male end. The apparatus includes a casing having a top end and a bottom end. The casing defines an electrode aperture from the bottom end shaped to accept the threaded male end of the ca...
02/09/2010
7658903High purity nuclear graphite
A highly isotropic graphite useful for, inter alia, nuclear applications is disclosed, which has a ash content of less than 300 ppm and a boron equivalence of less than about 2 ppm without requiring a post graphitization purification step. ...
02/09/2010
7658902Low CTE highly isotropic graphite
A process for producing a graphite article having a CTE of less than about 2.0 ppm/° C. over the temperature range of from 30° C. to 100° C. and an isotropy ratio of less than about 1.5 also advantageously having a thermal shock resistance parameter of greater th...
02/09/2010
7592695Compound heat sink
A compound heat sink for the removal of thermal energy useful for, inter alia, electronic devices or other components. The compound heat sink includes a die cast base element; an extruded dissipation element having a thermal conductivity of at least about 150 W/m-K;...
09/22/2009
7573717Cycling LED heat spreader
A graphite heat spreader is provided for use with a flash LED light source for a camera of a handheld device such as a cell phone. Dramatically reduced operating temperatures are provided at substantially increased power levels thus providing both improved lighting ...
08/11/2009
7544316Process for making graphite articles
A process for preparing graphite articles is presented. In particular, the process includes employing a particulate fraction comprising at least about 35 weight percent coke, coal or combinations thereof having a diameter such that a major fraction of it passes thro...
06/09/2009
7527855High strength monolithic carbon foam
A carbon foam article useful for, inter alia, composite tooling or other high temperature applications, which includes a carbon foam having a ratio of compressive strength to density of at least about 7000 psi/g/cc. ...
05/05/2009
7505275LED with integral via
A light emitting diode comprising a body and a thermal via integral therewith and which extends from the body. ...
03/17/2009
7494712Resin-impregnated flexible graphite articles
Composites are prepared from resin-impregnated flexible graphite materials. Impregnated materials are compressed and cured at elevated temperature and pressure to form structures suitable for uses such as electronic thermal management (ETM) devices, supercapacitors ...
02/24/2009
7470468Flexible graphite article and method of manufacture
A flexible graphite sheet exhibiting enhanced isotropy is provided. In addition, an apparatus, system and method for continuously producing a resin-impregnated flexible graphite sheet is also provided. ...
12/30/2008
7466739Locking ring for graphite electrodes
An electrode joint is presented, the joint including two joined graphite electrodes having blocked threads and having a locking ring interposed between the electrodes, the locking ring composed of a material having a coefficient of friction such that the tendency of...
12/16/2008
7420810Base heat spreader with fins
A thermal management device for the removal of thermal energy useful for, inter alia, electronic devices or other components. ...
09/02/2008
7413793Induction furnace with unique carbon foam insulation
An insulative cap for an induction furnace comprising a carbon foam having a pore distribution such that at least about 90% of the pore volume of the pores have a diameter of between about 10 and about 150 microns and at least about 1% of the pores have a diameter o...
08/19/2008
7393587Sandwiched finstock
A finstock material for heat dissipation, which includes at least one sheet of flexible graphite sandwiched between two outer layers. ...
07/01/2008
7393442Ex-situ PEM fuel cell testing: towards visualizing gas diffusion
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 i...
07/01/2008
7386369Digital electrode observation
A system is provided for recording information relating to the condition of electrodes in an electric arc furnace. An imaging apparatus is provided in a consistent position relative to an imaging station. Periodically, the electrode columns are removed from the furn...
06/10/2008
7385819Display device
An image display device comprising an image display panel, heat dispersion material positioned proximate to the image display panel, a frame system including a framework positioned proximate to the heat dispersion material opposite the image display panel, and a plu...
06/10/2008
7378178Catalyst support material for fuel cell
A catalyst support material useful in a membrane electrode assembly is presented. The support catalyst material is elongate electrically anisotropic particles of flexible graphite, and the membrane electrode assembly includes a pair of electrodes, an ion exchange me...
05/27/2008
7365988Cycling LED heat spreader
A graphite heat spreader is provided for use with a flash LED light source for a camera of a handheld device such as a cell phone. Dramatically reduced operating temperatures are provided at substantially increased power levels thus providing both improved lighting ...
04/29/2008
7352792Enhanced joints for pins and electrodes with asymmetric properties
A joint for connecting two carbon members, with at least one carbon member having an asymmetrical coefficient of thermal expansion. The carbon member having the asymmetrical coefficient of thermal expansion also has either a male tang or a female socket with an elli...
04/01/2008
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