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| Number | Title | Issue Date |
| 7441558 | Active thermal energy storage system An active thermal energy storage system is disclosed which uses an energy storage material that is stable at atmospheric pressure and temperature and has a melting point higher than 32 degrees F. This energy storage material is held within a storage tank and used as... | 10/28/2008 |
| 7429711 | Metal forming apparatus and process with resistance heating An apparatus for forming a metal article includes a station which receives and supports a workpiece. The station has a source of electrical current and a source of a fluid. The station further includes a first and a second electrode clamp. Each clamp is in electrica... | 09/30/2008 |
| 7371988 | Methods for extending the life of alloy steel welded joints by elimination and reduction of the HAZ In one embodiment, the present invention provides a method for welding together two metal pieces, comprising buttering a surface of a first metal piece with a first nickel-based filler metal at a thickness sufficient to isolate a heat-affected zone in the first meta... | 05/13/2008 |
| 7363822 | Technique for applying direct resistance heating current to a specific location in a specimen under test while substantially reducing thermal gradients in the specimen gauge length A technique for imparting direct resistance heating to a gauge length of a conductive metallic specimen under test and which can be used to add an independent dynamic thermal capability to a mechanical material test system. Specifically, a pair of, e.g., conductive ... | 04/29/2008 |
| 7327951 | Instant water heater with PTC plastic conductive electrodes An instant water heater utilizing positive temperature coefficient plastic electrically conductive material structures for electrodes. The heating of the water is not generated by the electrodes, but instead by the resistance of the water to the electrical current f... | 02/05/2008 |
| 7302821 | Techniques for manufacturing a product using electric current during plastic deformation of material A technique for manufacturing a product involves receiving material, providing plastic deformation to the material to at least partially form the product, and applying electric current to the material while providing the plastic deformation to the material. The elec... | 12/04/2007 |
| 7262382 | Process of forming conical holes with an electrical discharge machining system An electrical discharge machine is configured to (i) machine at least a portion of a workpiece through electrical discharge between the workpiece and a first machining electrode aligned by the electrode guide; (ii) generate a dressed machining electrode by engaging ... | 08/28/2007 |
| 7235757 | Device for tightly fastening at least two members A device for clamping at least two components for use in friction stir welding supports the components and holds the components in place using a plurality of channels placed under vacuum for clamping of the components during friction stir welding. Both sides of a we... | 06/26/2007 |
| 7211767 | Techniques for treating a surface crack on a component A system is configured to treat a conductive component. The system includes a power source, an interface configured to electrically contact with a surface of the conductive component, and a controller coupled to the power source and the interface. The controller is ... | 05/01/2007 |
| 7177502 | Heating optical devices A thermo-optical device may use a heater to tune an optical device such as an optical switch, a Mach-Zehnder interferometer, or a variable optical attenuator, to mention a few examples. In some embodiments, polarization-dependent losses caused by the heating and pow... | 02/13/2007 |
| 7131921 | Belt-driven conical-pulley transmission A continuously variable transmission having two pairs of conical disks operatively connected by an endless torque-transmitting belt. One of each of the disk pairs is axially movable relative to the other along a supporting shaft. The movable disk includes an inner t... | 11/07/2006 |
| 7064291 | Annealing plant An annealing apparatus for annealing metallic billets, particularly for use in annealing aluminum-containing billets, comprising at least two contact elements or contact discs made of electrically conducting material, the contact elements being connected to a voltag... | 06/20/2006 |
| 7033442 | System and method for ventilation in the fabrication of integrated circuits In the fabrication of semiconductor integrated circuits, a ventilation system is disclosed which includes a sleeve device, a ventilator and a sensor. The sleeve device has at least one aperture thereon for gas transfer. The ventilator is coupled to the sleeve device... | 04/25/2006 |
| 7022952 | Dual coil induction heating system A dual coil induction cooking system and method for heating ferrous and non-ferrous cooking vessels. The system includes a first resonant circuit for inducing a current in a ferrous metal cooking vessel at a first frequency and a second resonant circuit, wired in a ... | 04/04/2006 |
| 6903296 | Method of making a metallic component A metallic component is made by heating with subsequent hardening by rapid cooling. In the component unhardened regions remain, in that the component is electrically resistant heated and defined regions, either by partial resistance heating of the other regions, by ... | 06/07/2005 |
| 6866181 | Friction stir welding method There is provided a method capable of decreasing a friction force in friction stir welding, in which a welding tool is used. In a method of friction stir welding workpieces together by rotating and pressingly plugging a welding tool, formed from a harder material th... | 03/15/2005 |
| 6806432 | Superconducting coils A method of heat treating a coil (14) for use as a superconducting coil. The coil (14) is heated in a furnace, the temperature of the furnace being controlled to perform a predetermined heating cycle. A current is passed through the coil (14) fo... | 10/19/2004 |
| 6783226 | Curved infrared foil heater for drying images on a recording medium A print head for a liquid ink printer deposits liquid ink droplets on a recording medium. A curved infrared foil heater is disposed adjacent to the recording medium path opposite the print head, for heating the recording medium to dry the liquid ink droplets. The fo... | 08/31/2004 |
| 6544668 | Ductile filler metal alloys for welding nickel aluminide alloys Nickel aluminum alloys are welded utilizing a nickel based alloy containing zirconium but substantially free of titanium and niobium which reduces the tendency to crack.... | 04/08/2003 |
| 6460007 | Method and apparatus for determination of resistance spot welded flange width A data processing system is provided for determining a minimum flange length for a joint to be welded by resistance spot welding. In particular, the data processing system utilizes data for a preselected weld electrode and a set of joint data representati... | 10/01/2002 |
| 6417490 | Method and device for thermally supporting mechanical joints The invention relates to a method and device for thermally supporting mechanical joints by means of punched rivets with a semi-hollow rivet or a solid rivet or by pounding. The method is characterized in that a local and time limited heating of the joint ... | 07/09/2002 |
| 6365864 | Cleaning device for welding wire and method of cleaning welding wire A wire cleaner for removing impurities from the surface of an elongated welding wire as the wire travels along a given path, the wire cleaner comprises a tunnel with a tube having a central passage surrounding the path with a gap between the tube and the ... | 04/02/2002 |
| 6337147 | Weldable aluminum product and welded structure comprising such a product Improved shape and strength of the weld in a welded structure are obtained by use of a weldable aluminum product comprising a structural component which is a sheet, a plate or an extruded body and is made of an aluminum alloy containing not more than 1.5 ... | 01/08/2002 |
| 6326574 | Sleeve for an adapter flange of the gasonics L3510 etcher A sleeve means is described. The sleeve means comprises a round plane and ring-shaped side adjacent to the round plane. The round plane has a central hole and six periphery holes thereon. The central hole and six peripheral holes respectively correspond t... | 12/04/2001 |
| 6066823 | Semiautomatic tube welding apparatus The present invention relates generally to an apparatus and method for performing tube-to-tubesheet welding within box headers and, in more particular, to a GTAW welding gun that has a long generally tubular barrel which is small enough in diameter to pas... | 05/23/2000 |
| 5868994 | Constant current needle annealing A constant current annealing device for annealing a wire or surgical needle is disclosed. The device includes amplitude and time setting devices, such as thumb-wheel switches. A constant current source is connected to the current setting device. The const... | 02/09/1999 |
| 5760360 | Apparatus and method for charging canisters with a high pressure gas An apparatus for charging a closed metallic canister with a gas under pressure comprising means for forming a gas filling opening in the canister, and dispensing means for sequentially injecting a high pressure gas through the gas filling opening to charg... | 06/02/1998 |
| 5744773 | Resistance heating process and apparatus A process and apparatus for effecting preheating of elongate metal parts, such as bars, for permitting subsequent deformative processing of the bar. Electrode-type clamps are attached adjacent opposite ends of the elongate bar, and direct-current electric... | 04/28/1998 |
| 5721414 | Method of manufacturing a spark erosion electrode wire An entry wire passes through a furnace containing zinc vapor in an inert atmosphere. While passing through the furnace the wire is heated by the Joule effect, by passing through it an electrical current produced by a generator, which rapidly heats it to t... | 02/24/1998 |
| 5650208 | Window equipped with electrostatic protection circuit A laminated window includes at least one rigid external substrate (5) and a sheet made of flexible plastic material (6) which is adjacent to the substrate (5). The window is equipped with an electrostatic protection circuit which is capable of dissipating... | 07/22/1997 |
| 5315085 | Oven that exhibits both self-resistive and self-inductive heating An oven (1800) for use in conjunction with a dynamic thermal-mechanical testing system that exhibits both self-resistive and self-inductive heating whenever a sufficiently large alternating (AC) electrical current is passed through the oven. In one embodi... | 05/24/1994 |
| 5308114 | Wire cutting device for land vehicles A wire cutter for electrically cutting a path through wires to allow a land ehicle to pass therethrough is provided. The wire cutter does not use the forward motion of the vehicle to provide the actual cutting and in general can cut any thickness of wire l... | 05/03/1994 |
| 5247157 | Apparatus for developing heat within conductive materials using heat-resistant ribbon heaters An apparatus for electrically heating an electrically conductive workpiece by passage of electric current therethrough includes a pair of hinged levers, each having a handle end and a jaw end. The jaw end of each lever is provided with a refractory metal ... | 09/21/1993 |
| 5202542 | Test specimen/jaw assembly that exhibits both self-resistive and self-inductive heating in response to an alternating electrical current flowing therethrough Apparatus either for a specimen that is to be held in a jaw assembly of, for example, a dynamic thermal-mechanical testing system or for the jaw assembly itself wherein the specimen or jaw assembly, respectively, exhibits both self-resistive and self-indu... | 04/13/1993 |
| 5124520 | Method and apparatus for developing heat within conductive materials An electrically conductive work-piece is rapidly heated by establishing a current flow in the work-piece that is the highest it can be without damaging circuit components. Such components include at least a transformer having a high-voltage, low-current p... | 06/23/1992 |
| 5008514 | Method and apparatus for heating a metallic elongated product Induction heating is used to heat a moving strip (4) of non-ferrous material by causing it to form a short-circuited loop acting as the secondary winding of a transformer (1), the loop passing over pulleys (6, 9, 5 or 16). In one arrangement, one of the p... | 04/16/1991 |
| 4987281 | Apparatus for continuous-direct-resistance heating of long-length particles The present invention relates to an apparatus for continuous-direct-resistance heating of long-length articles wherein the travelling long-length article is made to contact with roll electrodes disposed in a specified spacing, then made to pass through an... | 01/22/1991 |
| 4908490 | Technology and equipment of the stressed skin sheet covering for large passenger vehicles This invention is related to the process and apparatus for applying stressed skin sheet coverings to large passenger vehicles. The apparatus for the process, provided by this invention includes a single phase transformer, conductors, electric contactors a... | 03/13/1990 |
| 4822969 | Apparatus for continuous-direct-resistance heating of long-length articles The present invention relates to an apparatus for continuous-direct-resistance heating of long-length articles wherein the travelling long-length article is made to contact with roll electrodes disposed in a specified spacing, then made to pass through an... | 04/18/1989 |
| 4757978 | Shape-memory alloy resetting apparatus Apparatus for setting and resetting a portion of a shape-memory alloy part, the apparatus including an enclosing chamber having openings for the portion, a body of solid particles in the chamber, a pressure member connected to the chamber to immobilize th... | 07/19/1988 |
