Abstract: The electric heating arrangement (1) has a tubular housing (2) in which is provided at least one PTC heating element (20) and at least one pair of metallic heat dissipators (9) between which the at least one heating element (20) is clamped and which for this purpose each comprise a base portion (10) facing the at least one heating element and one or two curved legs (15) projecting from said base portion, which adapt themselves resiliently to the inner surface of the surrounding wall of the housing (2). The invention provides that the legs (15) taper toward their free ends and/or that the base portion (10) is thicker than the legs (15) projecting it.

Abstract: An integrated form of a cooling fin in a heating body, and more particularly, to an integrated form applied for joining a ceramic heating element and a cooling fin. Three-dimensionally expanded adhering areas are formed at relative joining planes of the wave-like cooling fin and the ceramic heating element, thereby increasing an adhering interface thereof and providing spaces for accumulating the adhesive, and further accomplishing reinforced binding forces and buffer purposes.

Abstract: An integrated form of a cooling fin in a heating body, and more particularly, to an integrated form applied for joining a ceramic heating element and a cooling fin. Three-dimensionally expanded adhering areas are formed at relative joining planes of the wave-like cooling fin and the ceramic heating element, thereby increasing an adhering interface thereof and providing spaces for accumulating the adhesive, and further accomplishing reinforced binding forces and buffer purposes.

Abstract: An electrical air heating apparatus, especially for a motor vehicle, with electrical heating elements (3) for heating air and a housing (1) which has a ground connection (1a), an electrical supply connection and an electronic circuit (7) to control the supplying of electrical power to the heating elements (3). In the housing (1), the heating elements (3) are arranged in electrical contact with the ground connection and the electrical supply connection. The housing (1) is made of an electrically conducting material, for example, aluminum and is constructed in one piece with a molded-on ground connection (1a). The heating elements (3) and the electronic circuit (7) are arranged in direct electrical contact with the housing (1).

Abstract: A heat transfer material comprised of a polymeric material and a nitride or oxide is provided and is thermally conductive, but electrically non-conductive. The polymeric material may be silicone rubber, and the nitride or oxide may be aluminum nitride, boron nitride, silicon nitride, aluminum oxide or beryllium oxide. The material is made flexible by adding plasticizer and remains flexible after an extended period of use. A dielectric jacket for an electrical heating cable is thermally conductive and remains flexible so that it can be reused. The heat transfer material can be used on heating devices such as steam tubes and panels, where the heat transfer material does not bond to or adhere to the heated surface, which allows the heating device to be reused.

Abstract: A PTC heater mainly comprises PTC ceramic sheets and cooling fins, and it comprises an inner support in which the PTC sheets are disposed, two electrode plates being disposed on both sides of the support and the PTC sheets to abut against the PTC sheets tightly, the cooling fins being disposed at the exterior of the electrode plates, insulating plates being mounted between the cooling fins and the electrode plate, in the interior of upper and lower ends of the two cooling fins, corresponding clamping grooves being formed through which the two cooling fins are clamped together, and elastic rods being inserted in the clamping grooves.

Abstract: An electric heating device including PTC heating elements which have electrode sheets arranged on both sides thereof. These electrode sheets supply power to the PTC heating elements and each having connected thereto radiator elements for emitting the heat generated by the PTC heating elements. An electrically insulating layer is arranged between at least one of the electrode sheets and the respective radiator element.

Abstract: This invention is a thermal management method for efficient, rapid, controllable and uniform thermal management over a wide temperature range. The method integrates a thermal source, thermal sink and a thermal diffuser. According to the invention, a thermal diffuser is positioned stationary relative to the wafer surface and coupled to a thermal source and a thermal sink, which are also stationary relative to the wafer surface. The thermal sink comprises a heat-carrying media with a controllable temperature. The wafer is heated from a first processing temperature to a second processing temperature during a heating time interval and then cooled to the first processing temperature from the second processing temperature during a cooling time interval. During heating and cooling, the wafer is constantly held in a fixed position. Zonal control of the thermal source and non-uniform flow of the thermal sink enable sensitive mitigation of thermal non-uniformity on a heating surface.

Abstract: The invention discloses in one embodiment a parallel probe array (N×M) incorporating thermal near-field heaters (or writers) as well as magnetic sensors (or readers), which can be moved en bloc as well as independently of each other. To this end, the present invention uses a suitable controlling electronics for coordinating a parallel or quasi-parallel reading/writing, as well as controlling the positioning of an individual probe in an array. The control electronics enables the addressing of an individual or preselected set of probes, for controlling reading and/or writing, thereby securing the considerable advantage of versatility and efficiency of reading/writing in a parallel operation mode.

Abstract: An optical device module using an integral heat transfer module. The heat transfer module has an integrally formed heat source and a temperature sensor for reading temperature. A heat transfer path is simplified in packaging the optical device module, so that the optical device can avoid performance degradation due to nonuniform temperature distribution. The amount power consumption can be reduced and excellent workability can be ensured.

Abstract: An electrical air heating apparatus, especially for a motor vehicle, with electrical heating elements (3) for heating air and a housing (1) which has a ground connection (1a), an electrical supply connection and an electronic circuit (7) to control the supplying of electrical power to the heating elements (3). In the housing (1), the heating elements (3) are arranged in electrical contact with the ground connection and the electrical supply connection. The housing (1) is made of an electrically conducting material, for example, aluminum and is constructed in one piece with a molded-on ground connection (1a). The heating elements (3) and the electronic circuit (7) are arranged in direct electrical contact with the housing (1).

Abstract: A radiator element for an air heating device, and a corresponding heating device and manufacturing method are provided which reveal improved assembly properties. The radiator element comprises at least one lamella element and one radiator sheet, wherein the radiator sheet comprises on at least two edges projections for attaching the lamella element onto the radiator sheet. The projections may be folded for attaching the lamella element. For facilitating the bending process, a notch along the edge is provided.

Abstract: At least one aspect of the present invention relates to a system for heating a gas using positive temperature coefficient (PTC) elements. More particularly, aspects of the present invention are directed towards PTC element configurations and orientations. In one aspect of the present invention, PTC elements are interposed between heat sinks such that they transmit current from one heat sink to another. The PTC elements may be arranged in a radial configuration, which may have more than one PTC element per radial flange. The heat sinks may have grilles which allow air to flow perpendicular to the heat sinks and between the PTC elements.

Abstract: A polymer-based flexible structure with integrated sensing/actuator means is presented. Conventionally, silicon has been used as a piezo-resistive material due to its high gauge factor and thereby high sensitivity to strain changes in a sensor. By using the fact that e.g. an SU-8 based polymer is much softer than silicon and that e.g. a gold resistor is easily incorporated in SU-8 based polymer structure it has been demonstrated that a SU-8 based cantilever sensor is almost as sensitive to stress changes as the silicon piezo-resistive cantilever.

Abstract: A vehicle lights defroster device for ensuring that motorists following the school bus see the flashing lights. The vehicle lights defroster device includes a cover member being essentially transparent and having an outer rim and being adapted to fastenably mount upon a light of a vehicle; and also includes a heating element extending throughout the cover member; and further includes a connecting assembly for connecting the heating element to a power source for energizing the heating element.

Abstract: A safe electrical heat energy generator which comprises a heater unit equipped with a set of systematically organized heat radiating metal fins. A feature of the invention is its reenforced compact structure in which a heating element arrangement and the heat radiating metal fin arrangement are manufactured as a single heater unit structure. In such a structure, a heating element is surrounded with an insulating layer and enclosed inside a central heat conductive tubing of the framework for the metal fin arrangement, thereby defining the major components of the heater unit. In this manner, the entire heater unit structure is the source of radiant heat energy, not simply the heating element itself.

Abstract: The invention discloses novel apparatus/methodology for writing/erasing high-density data on a digital recording media. A preferred embodiment of the invention features a novel thermal near-field heater that may be employed in the apparatus, particularly for realizing the methodology in a substantially thermal near-field mode. The invention provides advantages of data storage densities greater than that of diffraction limited systems, for example, data storage densities of approximately greater than 100 Gbit/inch2, and writing speeds approximately greater than 100 MHz.

Abstract: A heat transfer material comprised of a polymeric material and a nitride or oxide is provided and is thermally conductive, but electrically non-conductive. The polymeric material may be silicone rubber, and the nitride or oxide may be aluminum nitride, boron nitride, silicon nitride, aluminum oxide or beryllium oxide. The material is made flexible by adding plasticizer and remains flexible after an extended period of use. A dielectric jacket for an electrical heating cable is thermally conductive and remains flexible so that it can be reused. The heat transfer material can be used on heating devices such as steam tubes and panels, where the heat transfer material does not bond to or adhere to the heated surface, which allows the heating device to be reused.

Abstract: A PTC heater mainly comprises PTC ceramic sheets and cooling fins, and it comprises an inner support in which the PTC sheets are disposed, two electrode plates being disposed on both sides of the support and the PTC sheets to abut against the PTC sheets tightly, the cooling fins being disposed at the exterior of the electrode plates, insulating plates being mounted between the cooling fins and the electrode plate, in the interior of upper and lower ends of the two cooling fins, corresponding clamping grooves being formed through which the two cooling fins are clamped together, and elastic rods being inserted in the clamping grooves. Mechanical clamping method is adopted. The fitting structure of the elastic rod and the clamping grooves of cooling fins has taken the place of the traditional gluing structure, so the problem of aging of the silica gel and the lowering of power in traditional products is solved thoroughly.

Abstract: A heat dissipation device for a heater. The heater having a heater element portion, cold pin portions, and connectors. The cold pin portions are connected between the heater element portion and the connectors. The heat dissipation device is connected to the cold pin portions of the heater element to dissipate conducted heat from the heater element portion. This is done through convection to the surrounding air before the conducted heat reaches the connectors.

Abstract: An infant-support heater assembly having a heater element a radiator associated with the heater element and a sensing element in contact with at least a portion of the radiator. The sensing element is separate from the heater element.

Abstract: There is disclosed a heat sink for a PTC heating element, which heat sink including a first end, a second end, and a pair of webs extending from the second end towards the first end, in which each of the webs is connected to the cover face via a respective curved section, and the curved section is inward of the respective web.

Abstract: A safe electrical heat energy generator which comprises a heater unit equipped with a set of systematically organized heat radiating metal fins. A feature of the invention is its reenforced compact structure in which a heating element arrangement and the heat radiating metal fin arrangement are manufactured as a single heater unit structure. In such a structure, a heating element is surrounded with an insulating layer and enclosed inside a central heat conductive tubing of the framework for the metal fin arrangement, thereby defining the major components of the heater unit. In this manner, the entire heater unit structure is the source of radiant heat energy, not simply the heating element itself.

Abstract: An electrical heating device (10) for heating liquids employing one or more positive temperature coefficient (PTC) thermistors as heating elements (11). These heating elements (11) are in direct thermal and electrical contact on opposing sides (22), which are coated with a conductive metal such as aluminum, with electrodes to supply electrical current. These electrodes are in turn in direct thermal contact on their outward-facing sides with respect to the heating elements with plates (15) which are formed of a thermally conductive and electrically insulating ceramic material such as AL203, and the plates are in direct thermal contact on their outward-facing sides with respect to the heating elements with heat radiation units (20) which include cooling fins for heat transfer.

Abstract: A heat transfer material comprised of a polymeric material and a nitride or oxide is provided and is thermally conductive, but electrically non-conductive. The polymeric material may be silicone rubber, and the nitride or oxide may be aluminum nitride, boron nitride, silicon nitride, aluminum oxide or beryllium oxide. The material is made flexible by adding plasticizer and remains flexible after an extended period of use. A dielectric jacket for an electrical heating cable is thermally conductive and remains flexible so that it can be reused. The heat transfer material can be used on heating devices such as steam tubes and panels, where the heat transfer material does not bond to or adhere to the heated surface, which allows the heating device to be reused.

Abstract: A multi-stage heating furnace for drying large-sized substrates arranged in a stack, including a furnace body, and shelf heaters arranged within the furnace body such that the shelf heaters are spaced from each other in a vertical direction at a predetermined spacing pitch and such that adjacent ones of the shelf heaters partially define drying chambers for accommodating the respective substrates, wherein each shelf heater consists of a far-infrared-radiation panel heater of double-side heating type including a heat radiating plate in which a heat-generating body is embedded, and the panel heater has opposite major surfaces covered with respective thin ceramic layers which emit a far infrared radiation when the heat radiating plate is heated by energization of the heat-generating body.

Abstract: The present invention relates to an electric heating device which is especially conceived as a heating device for use in automotive vehicles. A plurality of heating elements, which are stacked so as to define a heating block, form together with a control device a structural unit. For this purpose, the control device is accommodated in a lateral bar of the frame by means of which the heating elements are held together. The air to be heated flows through the heating block as well as through windows provided in the lateral bar, past cooling elements which are respectively connected to the power-electronics components of the control device.

Abstract: A modular fluid heating apparatus may be assembled from a plurality of modular heating components. Each modular heating component includes a first molded section defining a first opening therethrough and a second molded section defining a second opening therethrough. The molded sections are mated and define an enclosed area between the molded sections. The first and second openings are aligned to form a fluid tight passage through the modular heating component. A resistance heating element is secured between the first and second molded sections in the enclosed area. The resistance heating element includes a supporting substrate having a first surface thereon and an electrical resistance heating material fastened to the first surface of the supporting substrate. The resistance heating material forms a predetermined circuit path having a pair of terminal end portions fixed to a pair of electrical connectors.

Abstract: There is disclosed a heat sink for a PTC heating element, which heat sink including a first end, a second end, and a pair of webs extending from the second end towards the first end, in which each of the webs is connected to the cover face via a respective curved section, and the curved section is inward of the respective web.

Abstract: The present invention relates to an electric heating device which is especially conceived as a heating device for use in automotive vehicles. A plurality of heating elements, which are stacked so as to define a heating block, form together with a control device a structural unit. For this purpose, the control device is accommodated in a lateral bar of the frame by means of which the heating elements are held together. The air to be heated flows through the heating block as well as through windows provided in the lateral bar, past cooling elements which are respectively connected to the power-electronics components of the control device.

Abstract: Ceramic igniters are provided that comprise two cold zones with an interposed hot zone, the hot zone having an electrical path length of from 0.51 cm to about 2 cm. Igniters of the invention can effectively diffuse power density throughout the igniter hot zone region, without producing isolated temperature gradients which can lead to premature igniter degradation and failure. The invention also provides new methods for forming ceramic igniters.

Abstract: Disclosed is a ceramic-resistor heating plate for preventing corona discharge which is characterized in that an extruded insulating part is provided around the peripheral of the plate-shaped heating body. Therefore, the distance between the electrodes of the fin plates sandwiching the heating body can be increased and the problem of corona discharge can be prevented with reduced cost and enhanced safety.

Abstract: A heated container for transport of prepared hot food has a combination of an electric heating element with an insulation layer comprising metal foil layers and fiber layers. The combination of metal foil layers, which spread the heat from the heating element, and the fiber insulation layers provides an efficient food transport container having sufficiently low power requirements to enable powering the heater element from an automotive 12 volt system while maintaining a food temperature inside the container at about 150° F.

Abstract: An air preheater system, and a method of operating the same, for use in connection with the requisite supply of heated air streams to the dispensing modules of apparatus for dispensing hot melt adhesives comprises the initial separation of the incoming ambient relatively cool air into separate air streams. The separate air streams are then individually and separately heated, and the exiting or discharged heated air streams are then recombined into a single heated air stream. In this manner, any variations in the temperature levels, density, and flow rate parameters within the individual or separate heated air streams are therefore averaged out and effectively eliminated. The single heated air stream is then conducted to a distribution manifold wherein unique structure of the distribution manifold renders uniform distribution of the separate air streams to the hot melt adhesive dispensing modules possible.

Abstract: Appliance for grilling a flat slice of food, the appliance being composed of a housing with a slot permitting access to a parallelepiped grilling chamber in the opposite main faces of which are respectively arranged facing each other two heating subassemblies. At least one of the subassemblies having a substantially homogeneous radiation plate heated by heating elements. The radiation face of this plate may be completed by elements which maintain a predetermined spacing of less than 1 centimeter with the slice, this face or this slice being in contact with these spacing elements along surfaces less than 1 millimeter wide. At least one of the subassemblies may be mounted to be relatively displaceable farther and closer with respect to the other in order to be applied to one side and the other of the slice with a predetermined pressure. The plates may be of a material and have dimensions such that they constitute heat storage plates for heating by convection or by radiation at a short distance.

Abstract: A heating element for a liquid heating vessel, comprises a metal substrate, an insulating layer provided over the substrate, and an electrically conductive heating track provided over the insulating layer. The heating track comprises a path extending between two contact pads, the heating track defining regions of relatively high density of track portions and regions of relatively low density of track portions. The contact pads are located in regions of relatively low density, and the layout of the heating track is designed such that in the event of thermal overheating of the element, the heating track ruptures at one of a predetermined set of locations in high density regions of the heating track. The heating track itself thereby functions as a thermal fuse.

Abstract: A thermoplastic material melting unit including various grid and reservoir configurations designed, for example, to optimize flow rate, melt rate and residence time within a melting unit. A main embodiment includes a supply hopper connected with a liquid reservoir having a plurality of heat exchanging elements, such as fins extending upward from its bottom wall. A melting grid is generally disposed between the supply hopper and the reservoir and includes both upwardly and downwardly extending heated fins. The downwardly extending fins intermesh with the upwardly extending fins of the reservoir. Additional embodiments of melting grids and heat exchange devices for melting solid thermoplastic material include bare element configurations, angled fin configurations and slotted fin configurations.

Abstract: A PTC thermistor element for a heating device has a main body of a layered structure having a thinner layer and a thicker layer, sandwiched between electrodes formed on the main outer surfaces facing away from each other. The thinner layer has a thickness 0.05-0.43 times that of the thicker layer and is made of a PTC thermistor material with a Curie temperature which is lower than that of the thicker layer by 20.degree. C. or more. The center of heat generation is thus shifted towards the electrode formed on the thinner layer, and a heating plate contacting it can be effectively heated.

Abstract: An immersion heating element comprises first and second heat conducting substrates defining top and bottom surfaces of the heating element. An electrically insulating layer is provided on one side of each substrate, and the two substrates are mounted together with the insulating layers facing each other and with a resistive heating track sandwiched between the insulating layers. This structure avoids the need for a thick protective insulating layer over the heating track.

Abstract: A thermal actuator comprising a first conductive material encased in a second non-conductive expansive material wherein said first conductive material is constructed in the form of a corrugated heater element so as to increase the rate of thermal transfer to said second non-conductive expansive material.

Abstract: In order to achieve concentric distribution of temperatures over a wafer supporting surface and improve the uniformity of heating, a heating resistor 4 having a configuration for providing a predetermined heater pattern buried in a ceramic substrate 2 constituting a wafer heating apparatus is made from arc portions 4a-4g which have different radii and are arranged to form concentric circles disposed at substantially the same intervals and straight portions 4h-4m which connect those of the arc portions 4a-4g that are adjacent to each other in the radial direction thereby to form a series circuit, while the arc portions 4a-4g and the straight portions 4h-4m are made in substantially the same strip width and the distance L1 between a pair of straight portions among the straight portions 4h-4m which are located on the same circle is made less than the distance L2 between the arc portions which are adjacent to each other in the radial direction.

Abstract: A heated follower plate for use with drum end loaders has a number of concentric downwardly facing ribs which have heating elements located in the lower ends thereof. A plurality of radial passages are provided which alternate between those which extend fully from the circumference of the plate to the center with those which extend only partially inwardly. The bottom surface formed by the ribs is actually slightly convex in shape.

Abstract: A food delivery container is provided for pizza or other food items and includes a heating element having a phase change material such as a ultra-high molecular weight polyethylene which transforms from a solid to a semi-solid at approximately 248.degree. -275.degree. F. The heating element comprises a rigid envelope which is permeable to prevent gaseous buildup during heating. The heating element, when placed within a suitable insulated container, will maintain food warm for several hours during storage or delivery. In one embodiment of the heating element, an electric resistance grid is provided for supplying heat energy.

Abstract: In a heating device used for melting snow on a road, a roof or the like, or for room heating of in-door facilities, in order to heat a to-be-heated or heated object uniformly over its entire area and enable to utilize effectively a PTC heater, a heat diffusing plate 14 for diffusing heat generated from a heat generating body 16 is arranged on an upper face of the heat insulating member 12 and the heating body 16 is arranged in a recess portion 13 installed on its upper face. The heating body 16 is constituted by inserting a heat generating element 4 mounted with heat radiating plates 5 into a vessel 2 enclosed with a heat storing agent 3 of a latent heat absorbing type in a state in which the heat generating element is brought into contact with the heat storing agent 3.

Abstract: A radiant electric heater has first, second and third heating zones (1, 2, 3) arranged substantially side-by-side. The first heating zone (1) is provided with at least one first heating element (9). The second heating zone (2) is arranged adjacent to the first heating zone and is provided with at least one second heating element (10). The third heating zone (3) is arranged adjacent to the second heating zone and is provided with at least one third and one fourth heating element (11, 12). A switch (15) is provided for switching between first, second and third heating states. In the first heating state the at least one first heating element (9) of the first heating zone (1) is energised alone, the at least one second, third and fourth heating elements (10, 11, 12) of the second and third heating zones (2, 3) being de-energised.

Abstract: A method of making a heated injection molding nozzle with an integral tip insert. First, an inner portion, an outer collar portion, and an electrical heating element are made and integrally brazed together in a vacuum furnace using a first nickel alloy brazing material. Then a tip insert is made having a desired configuration and seated in the front end of the inner portion and a second nickel alloy brazing material is applied around it. The second brazing material has a melting temperature which is substantially below that of the first brazing material. The tip insert is then integrally brazed in place by heating them to a temperature above the melting temperature of the second brazing material and below the melting temperature of the first brazing material. In addition to not affecting the metallurgical bonding between the other components, this allows the tip insert to be easily removed for replacement by again heating the nozzle to this same temperature.

Abstract: A heat-exchanging core portion includes a plurality of tubes arranged in parallel and a plurality of fin members disposed between a pair of adjacent tubes. While an electric heat emitting unit is constructed by supporting a heat emitting body including a heat emitting element inside a frame through a fin member. The electric heat emitting unit is installed into a space, which is defined in the heat-exchanging core portion, having a predetermined distance after the heat-exchanging core portion is assembled and integrally brazed while defining the space.

Abstract: An apparatus for cooling a quartz halogen lamp is disclosed. Each lamp socket, used for connecting terminals of a quartz halogen lamp to an electrical supply, is mounted to a convector. Heat is conducted away from the terminals to the convector where the heat is then transferred by forced convection to the atmosphere. Alternatively, the convector can be mounted directly to one or more of the terminals. Cooling of the quartz halogen lamp terminals is achieved without passing cooling air directly past the quartz halogen lamp, thereby avoiding problems associated with contamination of the quartz halogen lamp that can lead to premature failure of the quartz halogen lamp.

Abstract: An oil-filled heater (22) comprises a plate (34) welded onto the top opening in a fin of the heater. The plate (34) has a threaded opening (36), and a bolt (38) is threaded into the threaded opening (36) to seal the top opening. The bottom opening of the fin is sealed by a heating element (42) welded onto the fin. The present invention further relates to a method of filling the oil-filled heater (22).

Abstract: A device for achieving vacuum conditions more quickly in a semiconductor processing system having a vacuum pump, a gate valve and a chamber includes a rigid body containing heating elements that contact the surface of the gate valve. The device may include a U-shaped retainer clip for holding the device to the gate valve. A method for heating a gate valve to drive off contaminants involves heating the lower portion of the gate valve to drive contaminants towards the vacuum pump.