Abstract: A dryer for installation on a self-propelled machine, such as a combine harvester, with recovery of the exhausted thermal energy coming from the endothermic engine of the latter. The dryer is of the on-line type and comprises at least two feed screws, internally to which grain is moved towards a tank and dried by the hot air coming from a first and second heat exchangers respectively, the first heat exchanger being crossed by the high temperature exhaust fumes of said endothermic engine and the second heat exchanger by the cooling liquid.

Abstract: A non-contact system and heating method includes a blackbody core heated according to Molecular Resonant Wavelength-Radio Frequency Heating method. Radio frequency waves of a resonant frequency travel in a hollow channel of a waveguide that contains an object, such as a blackbody core. The core is structurally secured within the waveguide by a spring system that supports the base of the core, yet the core does not touch the waveguide and does not conduct heat to the waveguide. The core absorbs the RF energy and generates heat by molecular friction within the material of the core moving in a resonating pendulumatic fashion. The core converts the RF energy to infrared (IR) energy and emits IR waves through an exit aperture disposed within a hood coupled to the waveguide. A non-contact temperature measurement system measures the temperature of the core, such as using a phosphor decay temperature measurement method.

Abstract: A multi-slot resonant microwave device comprises a plurality of slot microwave resonator units and at least one microwave emitting source. Each of the plurality of slot microwave resonator unit is defined as a slot resonant cavity. Whenever at least one of the microwave emitting sources emits microwave power into the plurality of slot microwave resonator units, the plurality of slot microwave resonator units resonate simultaneously, and produce an electromagnetic field with the same polarization direction. Therefore, the multi-slot resonator device can deal with large-area microwave heating with greater microwave effect to shorten operating time and accomplish the objective of homogeneous and megathermal microwave heating.

Abstract: A multi-slot resonant microwave device comprises a plurality of slot microwave resonator units and at least one microwave emitting source. Each of the plurality of slot microwave resonator unit is defined as a slot resonant cavity. Whenever at least one of the microwave emitting sources emits microwave power into the plurality of slot microwave resonator units, the plurality of slot microwave resonator units resonate simultaneously, and produce an electromagnetic field with the same polarization direction. Therefore, the multi-slot resonator device can deal with large-area microwave heating with greater microwave effect to shorten operating time and accomplish the objective of homogeneous and megathermal microwave heating.

Abstract: A system for melting a substance may be provided. The system may comprise at least one burner probe. The at least one burner probe may comprise an absorber and a first wave guide configured to transmit microwaves. The absorber may be configured to receive the microwaves from the first wave guide and to convert energy from the microwaves into heat. The system may further comprise a second wave guide and a rotating wave guide. The rotating wave guide may be positioned between the first wave guide and the second wave guide. The rotating wave guide may comprise a plurality of sections configured to rotate about a central axis. The rotating wave guide may be configured to rotate approximately 90 degrees. For example, the rotating wave guide may comprise three sections wherein each one of the three sections may be configured to rotate approximately 30 degrees.

Abstract: In a microwave heating apparatus, the fundamental TE10 mode of the standard waveguide (5) having a standard rectangular cross-section is fed into an elongated heating cavity (2) having an enlarged rectangular cross-section in which the shorter side of the standard waveguide is enlarged to a length which can accommodate the desired width of a board (8) to be heated. A pair of lateral slots (25) is provided parallel in the opposite enlarged walls (11) of the heating cavity (2) to form a track for the board (8) to travel across the cavity. As the initially longer sidewall (11) of the standard waveguide is unchanged, the fundamental mode is not affected but the electric field is uniformly distributed along the width of the board (8) traversing the electric field and the cavity. As a result, wider products can be heated and a more uniform heating pattern can be achieved.

Abstract: A compact conveyor oven is disclosed comprising a cooking chamber, thermal heating source, conveyor means and independent top and bottom airflow within the cooking chamber wherein substantially equal pressurization of the top and bottom airflows is achieved within the compact footprint.

Abstract: A microwave furnace that can operate at least 1700° C. having a furnacing chamber within a retaining cavity. The chamber is at least partly surrounded by microwave transparent insulation. At least one susceptor is at least partly between the insulation and the chamber. The susceptor at least in part is a specially formulated sintered coarse grain polycrystalline ? alumina capable of absorbing microwave energy from room temperature to its maximum use temperature. The furnace has a power system providing microwave energy to activate the susceptor. A temperature sensor may be provided that has an infrared channeling tube to conduct an infrared signal from the chamber to a pyrometer for converting the infrared signal to an electrical signal proportional to temperature within the microwave chamber. The electrical signal is then used to signal the power supply to control temperature by controlling energy to the susceptor.

Abstract: The invention relates to a microwave heater comprising a plurality of microwave generators each emitting microwaves at a frequency in a range of frequencies ranging from 300 MHz to 5.8 GHz which couple into objects to be heated. At least one of the microwave generators emits the microwaves at a first frequency of an upper part of the range of frequencies, the microwaves of the first frequency displaying a first of depth of penetration into the objects to be heated; and at least one other of the microwave generators emits the microwaves at a second frequency of a lower part of the range of frequencies, the microwaves of the second frequency displaying a second depth of penetration into the objects to be heated, the first penetration depth being substantially smaller than the second penetration depth.

Abstract: Disclosed are methods of manufacturing electrical cables. In one embodiment of the invention, method for manufacturing a wellbore cable includes providing at least one insulated conductor, extruding a first polymeric material layer over the insulated conductor, serving a first layer of armor wires around the polymeric material and embedding the armor wires in the first polymeric material by exposure to an electromagnetic radiation source, followed by and extruding a second polymeric material layer over the first layer of armor wires embedded in the first polymeric material layer. Then, a second layer of armor wires may be served around the second polymeric material layer, and embedded therein by exposure to an electromagnetic radiation source. Finally, a third polymeric layer may be extruded around the second layer of armor wires to form a polymeric jacket.

Abstract: Container designed to contain a product having to be heated by applying microwaves, the container having a side wall (10) and an end wall (12) formed by a base or a lid and means (10A) for limiting the penetration of the microwaves through the side wall (10), compared with the penetration of the microwaves through a central region of the end wall (12). Advantageously, the container according to the invention further comprises means (12A) for concentrating the microwaves in a central region of the end wall (12), the said means being formed by an excess thickness of a dielectric material, the dielectric constant of which is at least equal to 1.5, preferably greater than 2.

Abstract: A wire processing apparatus includes a microwave generator, a microwave transmitter, a waveguide coaxial converter and a wire insertion pipe, and the wire insertion pipe is disposed in the wireguide coaxial converter. In wire recycling process, after a tip end of a coated wire is inserted into the wire insertion pipe, microwave is launched into the inside of the waveguide coaxial converter. The tip end of the coated wire is separated into a decomposed coating insulator and a molten electric conductor by microwave. In wire cross-linking process, after microwave is launched into the inside of the waveguide coaxial converter, the coated wire is inserted into the wire insertion pipe. The coated wire is cross-linked by high frequency heat and a coating insulator is adhered well to an electric conductor by heat shrinking.

Abstract: This innovative technology is the method of sterlization, processing food and consecutive cooking method by microwave more than 100° C. temperature. Previously such technology existed by microwave is heating, cooking, drying. This innovative technology by microwave is sterlization process.

Abstract: Container designed to contain a product having to be heated by applying microwaves, the container having a side wall (10) and an end wall (12) formed by a base or a lid and means (10A) for limiting the penetration of the microwaves through the side wall (10), compared with the penetration of the microwaves through a central region of the end wall (12). Advantageously, the container according to the invention further comprises means (12A) for concentrating the microwaves in a central region of the end wall (12), the said means being formed by an excess thickness of a dielectric material, the dielectric constant of which is at least equal to 1.5, preferably greater than 2.

Abstract: Microwave heating apparatus comprising a dielectric microwave applicator provided with a microwave coupling means adapted to feed microwave energy to the applicator. The applicator is provided with a load chamber 8 extending coaxially with regard to the centre axis of the applicator from an upper end to a predetermined distance from a lower end of the applicator, said load chamber is adapted to receive a load to be heated. The dielectric applicator comprises two sections, an upper section 4 provided with the load chamber and a lower section 6 for impedance matching between the coupling means and upper section. In a preferred embodiment the lower section has an increasing cross-sectional area from the coupling means to the intersection to the upper section.

Abstract: A sintering furnace for sintering an object to be sintered formed of ceramics, fine ceramic materials, etc. to produce a sintered object and a method therefor. An insulating wall (28) and an inner shell (25) define a sintering chamber (16) for sintering an object to be sintered (10). Thermal equilibrium is maintained between the inner shell (25) and the object to be sintered (10), and the object to be sintered (10) is completely pseudo-adiabatically isolated to achieve more uniform and small energy consuming sintering. The thickness of the insulating wall (28) increases gradually from an inlet (20) toward an outlet (21). The object to be sintered (10) is fed by a carriage provided in a sintering furnace from the inlet (20) to the outlet (21) in the sintering chamber (16). Thereby, a temperature distribution corresponding to a plurality of processes can be easily formed in one furnace to sinter continuously the object to be sintered (10) in the furnace.

Abstract: Reduction of moisture in harvested crop particles. Waste heat from an internal engine carried by a harvester is applied to the crop during the harvesting process. Microwave energy is applied to the crop, concurrently with application of the heat, or separately from it. The objective is to reduce the moisture to a level acceptable to a storage facility, or at least to reduce the cost of further reduction.

Abstract: A method of producing a consolidated composite wood product composed of discrete wood elements and a binder by forming a layup and preheating only a central longitudinal portion of the layup by application of microwave energy across the longitudinal axis and then pressing to consolidate the layup and applying further microwave energy in a direction perpendicular to the direction of the application of the preheating microwave energy through the sides of the compressed layup in the press.

Abstract: A microwave applicator including a cylindrical elongated chamber used to process materials therein; a microwave power source capable of producing microwave power having an electric field; a waveguide connected to the chamber couples microwave power into the microwave chamber. The applicator provides microwave energy having a substantially uniform field distribution over a large area for processing materials such as a web or sheet-like product. The uniformity of the applicator is enhanced by the use of matching devices within the applicator to match the regions of the applicator with no load to regions where the load is present in a continuous manner.

Abstract: A microwave applicator includes an elongated chamber, preferably having a cylindrical shape, for processing materials therein. A waveguide, connected to the elongated chamber, couples microwave power into the elongated chamber. The cross-sectional area of the elongated chamber can be mechanically adjusted to control and maintain the microwave field uniformity and resonant mode, preferably the length independent mode TM.sub.010, during the processing of the material. The applicator can thus provide microwave energy having a substantially uniform field distribution over a large area for processing materials, for example, a web or sheet like product, plywood and pre-impregnated cloth, in a continuous manner.

Abstract: A method and apparatus for the heat treatment of hard metals, cermets and ceramics in a microwave sintering furnace, the material to be treated being moved together with the resonator relative to one or a plurality of microwave sources. The material to be treated is disposed in individual cassettes which, with the exception of an opening necessary for the microwave radiation, consist of material which is impermeable to microwaves and dimensioned to simultaneously form microwave resonant cavities at a microwave frequency when charged with the material.

Abstract: A microwave furnace for heating materials has a microwave chamber with two microwave compartments made of microwave reflective material for retaining microwaves. One of the compartments is fixed and has an opening for discharging heated material. The other compartment is a rotating drum. The furnace also includes an elongated tubular member having a first and second open end. The tubular member is made of a microwave transparent material and is retained within the microwave chamber. A feeding mechanism feeds the material to be heated into the first end of the tubular member. The microwave furnace is provided with a mount for supporting the tubular member within the rotating microwave chamber by clasping the tubular member. The mount is adapted to rotate the tubular member along its axis and to position the tubular member such that the second end of the tubular member is substantially adjacent to the discharge opening of the fixed microwave chamber.

Abstract: A connection device for two successive segments (1A, 1B) of a tunnel oven for cooking food, comprises a first sleeve (16A) fixed to the frame (18) of the tunnel and second sleeve (17) secured to the tunnel segments (1A, 1B). The second sleeve (17) is mounted axially slidable relative to the first sleeve (16A). Seals (25) are disposed between the first and second sleeves, within the thickness of these latter, so as to permit sliding without loss of sealing. The device also comprises, in series, a quarter wave trap (26) and a body (31) that absorbs microwaves, also disposed within the thickness of the device.

Abstract: A microwave pultrusion apparatus (10) with a frame (103, 104) with fingers (109, 110) contacting the material (200) to be processed. The frame and fingers prevent leakage of the microwaves from the cavity (12) and can be replaced or modified for various material 200 and die cross-sections. The apparatus is particularly useful for curing resin impregnated fibers.

Abstract: Apparatus and method for regenerating saturated adsorbents using microwave energy. A saturated adsorbent, such as activated carbon, is fed onto a continuously moving conveyor belt. The conveyor belt transports the carbon to a microwave cavity where the carbon is exposed to microwave energy. The cavity is defined by a containment enclosure which is sealed to prevent radiation leakage. The carbon is heated to a sufficient temperature to cause the contaminants to desorb. The system also includes vents for removing the desorbed contaminants and a holder for receiving the treated carbon discharged from the belt. The microwave cavity may be divided into a number of heating compartments so that the carbon on the belt is heated to different temperatures in each compartment. Each compartment is separately vented, thereby allowing selective recovery of the different contaminants in the carbon.