Patent application number | Description | Published |
20090049871 | THERMAL CONTROL STRUCTURE AND GARMENT - A flexible thermally conductive structure. The structure generally includes a plurality of thermally conductive yarns, at least some of which are at least partially disposed adjacent to an elastomeric material. Typically, at least a portion of the plurality of thermally conductive yarns is configured as a sheet. The yarns may be constructed from graphite, metal, or similar materials. The elastomeric material may be formed from urethane or silicone foam that is at least partially collapsed, or from a similar material. A thermal management garment is provided, the garment incorporating a flexible thermally conductive structure. | 02-26-2009 |
20090087373 | Method and Apparatus for Producing a Carbon Based Foam Article Having a Desired Thermal-Conductivity Gradient - A carbon based foam article is made by heating the surface of a carbon foam block to a temperature above its graphitizing temperature, which is the temperature sufficient to graphitize the carbon foam. In one embodiment, the surface is heated with infrared pulses until heat is transferred from the surface into the core of the foam article such that the graphitizing temperature penetrates into the core to a desired depth below the surface. The graphitizing temperature is maintained for a time sufficient to substantially entirely graphitize the portion of the foam article from the surface to the desired depth below the surface. Thus, the foam article is an integral monolithic material that has a desired conductivity gradient with a relatively high thermal conductivity in the portion of the core that was graphitized and a relatively low thermal conductivity in the remaining portion of the foam article. | 04-02-2009 |
20100025009 | THERMAL MANAGEMENT SYSTEM - A thermal management system for operating near a temperature T. The system includes a sheet-like spacer having a plurality of passageways. A degassed working fluid is disposed as a liquid within the passageways of the spacer. A flexible and substantially impermeable sheet-like envelope forms a sealed compartment enclosing the spacer and the degassed working fluid at an absolute pressure that is approximately equal to the vapor pressure of the working fluid at equilibrium with liquid phase of the working fluid at the temperature T. The spacer, the working fluid and the envelope form a sheet-like thermal management system. In some embodiments the spacer is a flexible spacer and the envelope is a flexible envelope and the sheet-like thermal management system is a flexible sheet-like management system. In some embodiments the envelope is a rigid structure. | 02-04-2010 |
20120183116 | COMPOSITE NUCLEAR FUEL PELLET - A composite nuclear fuel pellet comprises a composite body including a UO2 matrix and a plurality of high aspect ratio particies dispersed therein, where the high aspect ratio particies have a thermal conductivity higher than that of the UO2 matrix. A method of making a composite nuclear fuel pellet includes combining UO2 powder with a predetermined amount of high aspect ratio particles to form a combined powder, the high aspect ratio particles having a thermal conductivity higher than that of the UO2 powder; mixing the combined powder in a solvent to disperse the high aspect ratio particles in the UO2 powder; evaporating the solvent to form a dry mixture comprising the high aspect ratio particles dispersed in the UO2 powder; pressing the dry mixture to form a green body; and sintering the green body to form the composite fuel pellet. | 07-19-2012 |
20120199330 | STAGED GRAPHITE FOAM HEAT EXCHANGERS - Shell-and-tube heat exchangers that utilize one or more foam heat transfer units engaged with the tubes to enhance the heat transfer between first and second fluids. The foam of the heat transfer units can be any thermally conductive foam material that enhances heat transfer. In an embodiment, a liquid distribution unit is employed that sprays a fluid to maximize the energy transfer through the use of large surface/volume ratio of the sprayed fluid. The spraying can be used in combination with or separately from the foam heat transfer units. Also, the tubes can be helically twisted around the liquid distribution unit so that the sprayed fluid impinges on the tubes. The shell-and-tube heat exchangers described herein are highly efficient, inexpensive to build, and corrosion resistant. The heat exchangers can be configured as an evaporator, a condenser, or for single phase cooling or heating thermal transfer applications. | 08-09-2012 |
20120199331 | SHELL-AND-TUBE HEAT EXCHANGERS WITH FOAM HEAT TRANSFER UNITS - Shell-and-tube heat exchangers that utilize one or more foam heat transfer units engaged with the tubes to enhance the heat transfer between first and second fluids. The foam of the heat transfer units can be any thermally conductive foam material that enhances heat transfer, for example graphite foam. These shell-and-tube heat exchangers are highly efficient, inexpensive to build, and corrosion resistant. The described heat exchangers can be used in a variety of applications, including but not limited to, low thermal driving force applications, power generation applications, and non-power generation applications such as refrigeration and cryogenics. The foam heat transfer units can be made from any thermally conductive foam material including, but not limited to, graphite foam or metal foam. In an embodiment, the heat exchanger utilizes tubes that are twisted around a central foam heat transfer unit. | 08-09-2012 |
20120199334 | HEAT EXCHANGER WITH FOAM FINS - Heat exchangers are described that employ fins made of a heat conducting foam material to enhance heat transfer. The foam fins can be used in any type of heat exchanger including, but not limited to, a plate-fin heat exchanger, a plate-frame heat exchanger or a shell-and-tube heat exchanger. The heat exchangers employing foam fins described herein are highly efficient, inexpensive to build, and corrosion resistant. The described heat exchangers can be used in a variety of applications, including but not limited to, low thermal driving force applications, power generation applications, and non-power generation applications such as refrigeration and cryogenics. The fins can be made from any thermally conductive foam material including, but not limited to, graphite foam or metal foam. | 08-09-2012 |
20130195708 | Metal-Bonded Graphite Foam Composites - A metal-bonded graphite foam composite includes a ductile metal continuous phase and a dispersed phase that includes graphite foam particles. | 08-01-2013 |
20140308594 | GRADIENT POROUS ELECTRODE ARCHITECTURES FOR RECHARGEABLE METAL-AIR BATTERIES - A cathode for a metal air battery includes a cathode structure having pores. The cathode structure has a metal side and an air side. The porosity decreases from the air side to the metal side. A metal air battery and a method of making a cathode for a metal air battery are also disclosed. | 10-16-2014 |
20160057814 | AC INDUCTION FIELD HEATING OF GRAPHITE FOAM - A magneto-energy apparatus includes an electromagnetic field source for generating a time-varying electromagnetic field. A graphite foam conductor is disposed within the electromagnetic field. The graphite foam when exposed to the time-varying electromagnetic field conducts an induced electric current, the electric current heating the graphite foam. An energy conversion device utilizes heat energy from the heated graphite foam to perform a heat energy consuming function. A device for heating a fluid and a method of converting energy are also disclosed. | 02-25-2016 |
20160057830 | INFRARED SIGNAL GENERATION FROM AC INDUCTION FIELD HEATING OF GRAPHITE FOAM - A magneto-energy apparatus includes an electromagnetic field source for generating a time-varying electromagnetic field. A graphite foam conductor is disposed within the electromagnetic field. The graphite foam when exposed to the time-varying electromagnetic field conducts an induced electric current, the electric current heating the graphite foam to produce light. An energy conversion device utilizes light energy from the heated graphite foam to perform a light energy consuming function. A device for producing light and a method of converting energy are also disclosed. | 02-25-2016 |
Patent application number | Description | Published |
20100190424 | Reinforced Bonded Abrasive Tools - Bonded abrasive tools, e.g., grinding wheels, can be reinforced using, for instance, one or more fibreglass web(s) having a surface of glass per unit of at least 0.2. Alternatively or in addition, the fibreglass web has a thickness of 2 mm or less. The web can be designed to provide improved adhesion between the fibreglass reinforcement and the mixture employed to form the bonded abrasive tool. In some examples, the middle reinforcement at the neutral zone of the wheel can be eliminated or minimized. | 07-29-2010 |
20110027564 | ABRASIVE TOOL HAVING CONTROLLED POROSITY DISTRIBUTION - An abrasive tool having a body including an abrasive portion having abrasive grains contained within a matrix material and porosity characterized by a bimodal distribution of pores including large pores having an average large pore size (P | 02-03-2011 |
20110041413 | ABRASIVE TOOL HAVING A PARTICULAR POROSITY VARIATION - An abrasive tool has a body including an abrasive portion having abrasive grains contained within a matrix material, and a first reinforcing member contained within the abrasive portion, wherein the body comprises a porosity variation difference through at least half of a thickness of the body of not greater than 250% from a mean porosity of the body. | 02-24-2011 |
20120064295 | LOW CALIPER GLASS MAT AND BINDER SYSTEM FOR SAME - Cured non-woven fibrous mats, UF-based resinous binders, asphalt coated roofing material and processes for making cured non-woven fibrous mats are provided. A cured non-woven fibrous mat comprising randomly disposed fibers bound together with a resinous adhesive is provided. The mat has a caliper of less than 30 mil, an LOI of less than 18 wt. %, a hot tensile strength of at least about 60 lbs for a sample width of 2.5 inches, and an areal weight of equal to or less than about 1.8 lbs/100 ft | 03-15-2012 |
20120100784 | Microfiber Reinforcement for Abrasive Tools - An abrasive article includes an organic bond material, an abrasive material dispersed in the organic bond material, mineral wool microfibers uniformly dispersed in the organic bond material, the mineral wool microfibers being individual filaments, one or more reinforcement and/or chopped strand fibers dispersed in the organic bond material and one or more active fillers including, for example, a manganese compound. The abrasive article can be used in the abrasive processing of a workpiece. | 04-26-2012 |
20140345202 | Microfiber Reinforcement for Abrasive Tools - A composition that can be used for abrasive processing is disclosed. The composition includes an organic bond material, an abrasive material dispersed in the organic bond material, and a plurality of microfibers uniformly dispersed in the organic bond material. The microfibers are individual filaments having an average length of less than about 1000 μm. Abrasive articles made with the composition exhibit improved strength and impact resistance relative to non-reinforced abrasive tools, and improved wheel wear rate and G-ratio relative to conventional reinforced tools. Active fillers that interact with microfibers may be used to further abrasive process benefits. | 11-27-2014 |
20140378036 | ABRASIVE ARTICLE AND METHOD OF MAKING SAME - An abrasive article may include an abrasive body having a grinding layer, where the grinding layer may include a bond and abrasive particles contained within the bond. The abrasive body also may include a volumetric ratio GLV | 12-25-2014 |