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| Number | Title | Issue Date |
| 7795563 | Method for the design of 3-D RF-welding electrodes A technique for the design of 3-D RF welding electrodes by first modeling the surface of the welded part perimeter as a spline in a 3-D CAD program, and then dividing the spline up into multiple, small straight segments. The straight segments are offset simultaneous... | 09/14/2010 |
| 7531771 | Heat treatment apparatus of light emission type A reflector is so provided as to entirely cover a plurality of flash lamps arranged in parallel with one another. The reflector reflects flash light emitted from the flash lamps. A plurality of trigger electrodes needed to allow the flash lamps to discharge are so f... | 05/12/2009 |
| 7368685 | Oven and heating unit of oven An oven and a heating unit of the oven are provided. The oven includes a cavity, a heater, a food container, and an ohmic heater. A high temperature environment is formed in the cavity. The food container is mounted within the cavity to receive food therein. The ohm... | 05/06/2008 |
| 7342209 | Microprocessor controlled tube apparatus having reduced radio frequency emanations A tube apparatus is provided to detect successful or failed tube operations. The tube apparatus includes jaws mounted for movement with respect to one another between (1) a first position spaced from one another and (2) a second position selected to perform a succes... | 03/11/2008 |
| 7326898 | Method and apparatus for closing or severing a tube using a controllable closure force FIG. 1 depicts a full view of the picnic table backrest. It shows the backrest, the bars that wrap around the bench to keep the back rest stable and the latch on the back of the rest that keeps the rest from slipping out. FIG. 2 shows a close up view o... | 02/05/2008 |
| 7164100 | High-frequency de-icing of cableways High-frequency AC voltage with a frequency in a range of from 60 to 100 kHz supplied from a power source at 3 to 15 kV is applied to an electrical conductor within about 30 cm of a cableway. The high-frequency AC voltage generates an alternating electric field. Capa... | 01/16/2007 |
| 7095000 | Radio-frequency driven dielectric heaters for non-nuclear testing in nuclear core development Apparatus and methods are provided through which a radio-frequency dielectric heater has a cylindrical form factor, a variable thermal energy deposition through variations in geometry and composition of a dielectric, and/or has a thermally isolated power input. ... | 08/22/2006 |
| 7087876 | High-frequency melting of interfacial ice An alternating electric field is applied at an ice interface to generate a resistive AC current having a frequency greater than 1000 Hz in interfacial ice. Typically, a first electrode and a second electrode proximate to the interface are separated by an interelectr... | 08/08/2006 |
| 7038180 | Isostat for treating materials and method of removing ceramic material from metal articles using the same The disclosed isostat for treating materials comprises a hermetic container connected to a gas supply means, an induction heater and an open-top working chamber that are arranged therein, the chamber being mounted above the heater and designed for placing the articl... | 05/02/2006 |
| 7012232 | RF welding device An RF welder is disclosed that has circuitry that automatically affects system impedance so that, throughout the welding or embossing cycle, a generator is capable of sending energy through die and fabric at a predetermined frequency and cabling is capable of dissip... | 03/14/2006 |
| 6995345 | Electrode apparatus for stray field radio frequency heating An RF heating system for generating precision stray RF fields that can be used to heat materials. The RF heating system includes an RF power supply for generating RF signals and an electrode apparatus that is coupled to the RF power supply. An electrode apparatus ac... | 02/07/2006 |
| 6914226 | Oven for heating a product with RF energy RF energy provided by electrodes positioned between a product is used to heat a product that exhibits a variable impedance during the heating process. As the product's impedance changes during the heating process, RF heating system impedance can be maintained consta... | 07/05/2005 |
| 6812445 | Electrode apparatus for stray field radio frequency heating An RF heating system for generating precision stray RF fields that can be used to heat materials. The RF heating system includes an RF power supply for generating RF signals and an electrode apparatus that is coupled to the RF power supply. An electrode apparatus ac... | 11/02/2004 |
| 6800835 | Radio-frequency driven dielectric heaters for non-nuclear testing in nuclear core development Apparatus and methods are provided through which a radio-frequency dielectric heater has a cylindrical form factor, a variable thermal energy deposition through variations in geometry and composition of a dielectric, and/or has a thermally isolated power input. ... | 10/05/2004 |
| 6794624 | Microprocessor controlled tube apparatus having reduced radio frequency emanations A dielectric tube sealer is provided with first and second jaws oriented along a jaw axis and positioned to receive a tube portion in a space therebetween. The first jaw is fixed and is coupled to a radio frequency generator. The second jaw is movable with respect t... | 09/21/2004 |
| 6607583 | Method and apparatus for controlled heating of adsorbent materials A method and apparatus for controlling the heating of adsorbent materials in a vessel including the utilization of electrodes in direct contact with the adsorbent material to induce a current in the material. The electrical contacts are spaced apart and r... | 08/19/2003 |
| 6559432 | Apparatus and methods for welding flexible material A fixture for use with a radio-frequency welding press includes an independent electrode that is not attached to a platen of the press and which is used to register directly on flexible material workpieces to locate and hold workpieces during a welding op... | 05/06/2003 |
| 6423955 | High frequency dielectric heating system A method and apparatus for dielectric drying is disclosed wherein a load to be heated positioned on a carrier the bottom of which provides a secondary electrode is moved with the carrier a dielectric heating chamber having a primary electrode positioned a... | 07/23/2002 |
| 6346693 | Selective heating of agricultural products A grain containment vessel equipped with one or more antennas and a vapor extraction system is disclosed. An electromagnetic heating pattern is established throughout the grain volume elevating the bulk temperature, while an air flow is applied throughout... | 02/12/2002 |
| 6323473 | Packed food pasteurizing device and pasteurizing method A prepackaged food sterilizing apparatus for sterilizing a prepackaged food P has a high frequency generator 71. A high frequency is supplied from the high frequency generator 71 to the prepackaged food P to sterilize the prepackaged food P by dielectric ... | 11/27/2001 |
| 6247395 | High-frequency thawing apparatus An object of a high-frequency thawing apparatus is to uniformly thaw an entirety of an article with high efficiency and high-speed, particularly an article having a relatively large thickness. The apparatus is so constructed that a high-frequency power fr... | 06/19/2001 |
| 6246040 | Solid state RF generator for dielectric heating of food products A solid state radio frequency (RF) generator for dielectric heating of food products. In the preferred embodiment, a distributed oscillator comprising an array of solid state devices (e.g., MOSFETs) and a high voltage inductor drives a capacitor to produc... | 06/12/2001 |
| 6225612 | Electrode structure for dielectric heating A dielectric heating or drying system incorporating an electrode structure, which is provided with wings that projects toward the opposite electrode along each side of a planar central portion of the electrode and function to improve electric field unifor... | 05/01/2001 |
| 6080978 | Dielectric drying kiln material handling system A dielectric drying kiln material handling system includes a bottom electrode incorporating a conveyor system for moving material along said bottom electrode for moving material on and off of the electrode. Conveyors are built into the electrode in a mann... | 06/27/2000 |
| 6030490 | Apparatus for radio-frequency bonding of thermoplastic members A bonding apparatus for bonding a thermoplastic pad having a predetermined peripheral shape to a first surface of a carpet using radio frequency energy includes a die electrode and a backing electrode. Both the die electrode and the backing electrode have... | 02/29/2000 |
| 6023055 | Apparatus for heating prepackaged foods utilizing high frequency heating with electrodes in a sealed chamber A heating apparatus for heating a prepackaged food, is provided with a heater which heats a prepackaged food, an enclosure which defines an airtight chamber operable to accommodate the prepackaged food, and a pressure controller which controls the inside ... | 02/08/2000 |
| 5981930 | Canister for preventing the emanation of a vaporized fuel gas A canister is provided for preventing the emanation of a vaporized fuel gas. The canister is capable of quickly heating the activated carbon through the resistance thereof up to a required temperature at the time of desorption of the vaporized fuel gas. T... | 11/09/1999 |
| 5942146 | Dielectric drying kiln electrode connector A dielectric drying kiln having a moveable electrode permanently electrically connected with a source of power via an electrical connector formed by a plurality of discrete interconnected electrically and mechanically interconnected conducting element tha... | 08/24/1999 |
| 5834746 | Method and apparatus for heating products by means of high-frequency electromagnetic waves The invention relates to a method for the heat treatment of meat products in a feeding element (4) by means of high-frequency electromagnetic waves, and an apparatus for the execution of the method. The invention also relates to an advantageous applicatio... | 11/10/1998 |
| 5789725 | Radio frequency heat sealing of cable assemblies A cable assembly (8, 80) including an electrical cable (10) having a flexible tubular jacket (12) and a reinforcing structure (14) attached to the outside of the jacket in a smooth sealing connection (30), and a method of using radio-frequency electrical ... | 08/04/1998 |
| 5736719 | Method and apparatus for heat sealing of packaging materials employing RF electric energy Method and apparatus employing radio frequency electric energy for heat sealing of laminated packaging materials, particularly aseptic packaging materials, that include facing contiguous layers of thermoplastic material, including first and second seal ja... | 04/07/1998 |
| 5712469 | Method of curing inaccessible thermoset adhesive joints using radio frequency dielectric heating Method of curing inaccessible thermoset adhesive joints, comprising: forming structures to be bonded at mating surfaces when assembled, the shortest distance from the mating surfaces to the exterior of the assembly inhibiting the application of radio freq... | 01/27/1998 |
| 5695671 | System and process for controlling dielectric ovens A control system for controlling the heating of a product in a dielectric oven comprises at least one dielectric heating circuit including an electromagnetic energy source, such as a triode vacuum tube, having an anode and a resonant circuit including at ... | 12/09/1997 |
| 5651907 | Product tray for dielectric oven A removable tray holds a product for heating in a dielectric oven. The tray comprises at least one wall defining an interior, wherein the at least one wall is made from a non-electrically conductive material, such as a polycarbonate resin having a thickne... | 07/29/1997 |
| 5621845 | Apparatus for electrode heating of earth for recovery of subsurface volatiles and semi-volatiles Improved methods and apparatus are disclosed for confining ohmic heating currents to a subsurface formation in the use of in situ ohmic heating for recovery of volatile and semi-volatile materials, such as hazardous waste, hydrocarbon-like materials, and ... | 04/15/1997 |
| 5607613 | Electroheating of food products using low frequency current An electroheating cell operating at low voltage and mains frequency, i.e., 60 Hz, is effective in heating a variety of food products including liquid egg products for general processing, as well as pasteurization and sterilization. The electroheating cell... | 03/04/1997 |
| 5556567 | System and process for controlling dielectric ovens A control system for controlling the heating of a product in a dielectric oven comprises at least one dielectric heating circuit including an electromagnetic energy source, such as a triode vacuum tube, having an anode and a resonant circuit including at ... | 09/17/1996 |
| 5541392 | Product tray for dielectric oven A removable tray holds a product for heating in a dielectric oven. The tray comprises at least one wall defining an interior, wherein the at least one wall is made from a non-electrically conductive material, such as a polycarbonate resin having a thickne... | 07/30/1996 |
| 5536378 | Apparatus for manufacture of oxygen from lunar ilmenite A reactor apparatus for production of Lunar oxygen uses feed stocks comprising a particulate hydrogen-reducible enriched feed in the size range from about 20-200 microns, containing 80-90% Lunar ilmenite (FeTiO3) and ferrous Lunar agglutinates.... | 07/16/1996 |
| 5512737 | Oven liner for dielectric oven A dielectric oven for heating a product with a tray includes a housing having an access, wherein the housing defines a heating cavity. The oven includes an oven liner which substantially conforms to the interior shape of the heating cavity and forms a lin... | 04/30/1996 |
