Abstract: An electric heating device, in particular for a motor vehicle, includes a housing which has an inlet and outlet opening for a medium to be heated and which encloses a layered structure. The layered stricture comprises at least one PTC element which is electrically conductively connected to conducting elements leading to connections of different polarity, and heat-emitting elements that are conductively connected on both sides to the PTC element. In order to provide improved heat dissipation, the heat-emitting elements include a panel element that is provided with perforations and that is made of a heat-conducting material.

Abstract: In an example embodiment, a heater assembly for an electronic heating device includes a heating element and a support. The heating element includes a planar portion, a first lead, and a second lead. The planar portion includes a filament. The filament defines an air channel through the planar portion. The filament includes a plurality of curves. At least one of the curves has a tip thereon. At least one of the first lead portion, the second lead portion, or both the first lead portion and the second lead portion are generally coplanar with the planar portion of the heating element. The heating element is in contact with the support such that the tip of the at least one of the curves rests thereon.

Abstract: A heat conductor and a heated media line having an inner tubular fluid line and at least one heat conductor arranged on the periphery thereof. The heat conductor is formed by a braid made of twisted individual wires and, in particular, an outer protective sheath surrounding the heat conductor and the fluid line. The braid is formed by at least six individual wires surrounding a support element, of which at least one individual wire is made of a copper-nickel (CuNi) alloy, and the remaining individual wires are produced from copper (Cu) or from a nickel-chromium (NiCr) alloy. All of the individual wires have the same diameter.

Abstract: A heating element for an e-vapor device includes a planar portion including at least one filament. The filament may define an air channel through the planar portion. The heating element may include first and second lead portions extending away from the planar portion. The planar portion, the first lead portion, and the second lead portion may be a unitary body.

Abstract: A support insulator for an open coil electric heater includes an insulator body having at least one coil support portion and plate attachment slots. The support insulator has an arm extending from the insulator body, the arm having a slot on an end thereof. Depending on the mounting of the support insulator, the slot can receive a resistance wire as a portion of a coil break-turn, a wire as part of a coil section, a part of a lead wire, or a part of a run of resistance wire that is not a coil break-turn or coil section.

Abstract: An air handler configured with a plurality of air distribution modules, each including a fan, and at least one damper disposed within to provide and direct conditioned air or fresh air to respective multiple zones of a building.

Abstract: A heater supporting device for use in a semiconductor manufacturing apparatus is provided so as to improve the uniformity of a temperature property and the expected lifespan by preventing support pieces from being damaged and separated from piece holders, and preventing deterioration in adiabatic efficiency in the vicinity of a ceiling of a vertical type furnace. A heating element of a coil shape is disposed around an object. The support pieces are vertically connected in multiple. Hollows of an elliptical shape are formed between the respective support pieces. Concave insertions are formed on one of upper and lower surfaces of the respective support pieces, and convex insertions are formed on the other one of the upper and lower surfaces of the respective support pieces. The convex insertions are insert-fitted with the concave insertions. The support pieces are vertically connected in multiple by insert-fitting the concave insertions to the convex insertions.

Abstract: Methods for drying ceramic greenware in a manner that substantially compensates for otherwise non-uniform drying are disclosed. The methods generally include partially drying a piece (22) of greenware such that its end portions (22E) are drier than its middle portion (22C). The method also includes further drying the piece with radio-frequency (RF) radiation (88) generated by an electrode system (130) by conveying the piece through the electrode system. The electrode system has a main planar electrode (131E) with a longitudinal axis (AE), and an electrode concentrator (131C) formed thereon or attached thereto. The electrode concentrator has a central section (140) that runs in the direction of the longitudinal axis of the electrode and is configured so that when the piece is conveyed through the electrode system, the electrode system concentrates more RF radiation at the center portion of the piece than at the end portions of the piece.

Abstract: An electric heater apparatus for heating air is disclosed, comprising a heater coil assembly including a coil support comprising a panel around which lies a coil of an electrical resistance element from approximately one end of the panel to approximately an opposite end, the coil of the electrical resistance element comprising a pass of spaced apart loops, the coil support configured to support the spaced apart loops.

Abstract: The present invention relates to an electrical temperature control for controlling the temperature of surfaces. It is envisaged that the temperature control has at least one heat distribution device which covers at least parts of the surface to be temperature controlled.

Abstract: An open coil electrical resistance heater subassembly for use in a heater has a support plate dividing the heater into at least two portions. At least two resistance wire coils are supported on the support plate using a plurality of insulators. Each insulator is configured to provide support to a portion of the resistance wire coil. The at least two resistance wire coils are arranged with respect to the support plate so that the coil power for each coil is distributed generally evenly between the top and bottom of the support plate and across the width of the support plate.

Abstract: An electrical heating device includes a frame and a layer structure arranged in the frame and comprising layers of corrugated ribs and PTC-based heat generating elements. The electrical heating device includes at least two corrugated-rib elements. The frame has two frame elements forming openings and at least one frame intermediate element arranged between them. A frame, formed solely by the frame elements, forms an accommodation space extending in the passage direction of the medium to be heated, which is appropriately formed for the accommodation of a layer structure with a level of corrugated ribs and heat generating elements. A frame, formed by the frame elements and the frame intermediate element, forms an accommodation space extending in the passage direction of the medium to be heated, which is formed for the accommodation of a layer structure with several levels of corrugated ribs and heat generating elements.

Abstract: The supporting frame for a helical wire heating coil assembly is initially formed in a straight linear manner using an angular cross section shape and including integrally formed linear arrays of clips for mounting insulating stand-offs, attachment tabs for mounting the assembly and open notches that permit the frame to be subsequently formed into a circular or other arcuate shape.

Abstract: The present invention relates to a multi-level and vertical assembling type PTFE heater and the methods of manufacture thereof. Said heater includes a vertical frame assembled by multi-poles and upper and lower retaining plates. Several levels of PTFE sleeves and electrical heating belts are alternatively disposed on the multi-poles. The number of the poles is determined in accordance with the size and capacity of a heater desired and the power and levels of PTFE electrical heating belts with heating needs. Multiple levels of PTFE electrical heating belts are formed in an assembling way, by which heaters with varied powers are easily produced and with the elements replaceable, will not be wholly wasted in event of an element damaged, thus the heater service life prolonged. Said heater has a better heating result than the one with only a single level of heating structure.

Abstract: Spacer for a vertical support structure of a heating element coil includes a mating feature including complimentary components on first opposing sides of the spacer, a cavity, open to second opposing sides of the spacer, and an extension offset from an axis intersecting the mating features, the extension including a pocket sized to fit an individual loop of the heating element coil. The spacer can be incorporated into a support structure for a heating element coil interlocking adjacent loops of the coil so that they are retained in a collinear and concentric arrangement while allowing the loops of the coil to move freely inward and outward from the central axis in unison.

Abstract: The invention relates to a heating device comprising at least one tube housing in which at least one PTC heating element is arranged, and heat exchangers which are secured on the tube housing. According to the invention, it is provided that the heat exchangers are secured on the tube housing by stamping.

Abstract: An insulator for an electric heater is configured to allow a heater coil to expand/contract uniformly, and permit an easy fitting of the heater coil thereto. The insulator includes a body part formed of an insulating material, a coil seating part at an end of the body part for supporting the heater coil, and a seating slot between the coil seating part and the body part for inserting the heat coil.

Abstract: An electrical heating device includes at least one heat generating element and at least one heat emitting element having opposed surfaces that abut the heat generating element. The heat generating element includes at least one PTC heating element having strip conductors on both sides of it for the electrical supply of the PTC heating element At least one of the strip conductor is provided with at least one contact projection which protrudes beyond a PTC heating element locating face formed on the strip conductor. Also disclosed is a heat generating element having at least one strip conductor provided with at least one contact projection.

Abstract: An internal start-up heater (10) for an ammonia reactor (1), comprising longitudinal heating members (16) and a supporting structure for said heating members (16), the structure comprising plates (20A-20D) with parallel beams (22A-22D) in contact with said heating members (16), wherein the plates are arranged in plate sets formed by at least a first and a second plate having differently arranged supporting beams.

Abstract: A heat medium heating device 10 includes an inner case main body 21 having a flow path of a heat medium formed inside, an outer case main body 31 arranged on an outer peripheral side of the inner case main body 21 and having a flow path of the heat medium formed outside, and a PTC heater 40 held as being interposed between the inner case main body 21 and the outer case main body 31. The inner case main body 21 and the outer case main body 31 each may have a circular outer shape or a rectangular outer shape. Also, the inner case main body 21 and the outer case main body 31 are preferably provided with fins 24 and 34, respectively, facing the flow path of the heat medium.

Abstract: A heater plate is constructed with an embedded thermal diffusion layer of pyrolytic graphite to provide increased temperature uniformity in a critical heating surface. The heater has first and second metal plates with a heater element contained within the first plate and a core of the pyrolytic graphite diffusion layer sandwiched between the heater element and the second metal plate. The diffusion layer may be sputter metal coated to improve bonding of the layer to the plates.

Abstract: An infrared, room heater system for installation in a wall or on a floor. An electric fan assembly draws room air into a housing, then through three parallel, air transit channels where the air is heated by infrared radiation within and about a heat exchanger assembly, and then back out into the room. One or more ceramic heating elements attached to a first copper plate emit infrared radiation when electrically energized. The first copper plate lies adjacent to, but spaced away from, a second copper plate such that radiation emitted from the heating elements reflects back and forth between the plates. Room air passed between the copper plates is heated by heat radiation concentrated between the plates, thereby achieving both energy and space efficiency.

Abstract: An electrical heating device has an integrally manufactured support made from insulating material. Depressed paths for introducing a heating element are provided. A klixon functioning as a thermally actuated switch is inserted from above into an opening in the central area of the support and its electrical terminals project over the bottom side and are bent round for mechanical fixing.

Abstract: A cartridge type heater is provided with at least one hot wire coil (13), which has two coreless coil strands (11, 12), which extend in an insulating material (50) along the two sides of a carrier wall (14). The heater includes an insulating material that is coordinated with the internal diameter of a metal jacket (2). The hot wire ends (9, 10) are provided with terminals projecting from the same end of the metal jacket (2). The hot wire coils (11, 12) are electrically connected to one another in the area of an end edge of the carrier wall (14). This edge is located in the closed end area of the metal jacket (2) and the coils are guided by spacers (45) distributed at the longitudinal edges of the carrier wall (14). At least the terminal-side end of the dimensionally stable carrier wall (14) is provided with an attached coil holder (15, 15/1), to which the hot wire ends (9, 10) are fastened under tensile stress. This keeps the windings of the hot wire coil (13) spaced apart from each other.

Abstract: An electrical heating device, which includes a housing, in which at least one heat generating element with at least one PTC element and electrical strip conductors abutting oppositely situated lateral faces of the PTC element and a plurality of heat dissipating elements arranged in parallel layers are accommodated, which are held abutted on oppositely situated sides of the heat generating element. An electrical heating device according to the invention and which fulfils the practical requirements, in particular with high voltage operation in an improved manner has at least one heat dissipating element which is situated, with the intermediate positioning of an electrically insulating layer, on the assigned heat generating element and can be electrically connected to a ground potential.

Abstract: An electrical heating device, includes a housing in which at least one heat generating element with at least one PTC element and electrical strip conductors abutting oppositely situated lateral faces of the PTC element and a plurality of heat dissipating elements arranged in parallel layers are accommodated. The heat dissipating elements are held abutted on oppositely situated sides of the heat generating element, with the intermediate positioning of an electrical insulation. In order to be capable of improved high voltage operation, at least one conducting element electrically connects together a plurality of heat dissipating elements.

Abstract: A mica board heater has a mica board support plate assembly that isolates the mica boards from the frame of the heater. The mica board support plate assembly includes a mica board with openings sized to receive ends of the mica boards that support the resistance wires. The mica board with the specially sized openings is supported by a frame that is attached to the heater frame. By using the mica board support plate assembly, the mica boards are electrically isolated from the frame and without compromising the structural soundness of the frame.

Abstract: A method of assembling a towel rail having vertically extending, elongate, tubular supports opposed and spaced apart from each other, and spaced apart, horizontally extending, tubular beams, the method including: a) threading an elongate flexible heating element through a respective support; b) looping an appropriate length of the element through each hole of the support to form a plurality of looped sections; c) threading each looped section through a respective beam from the second end; d) inserting the second end of each beam through a respective hole of the respective support to bring an abutment surface of the second end into contact with an inner surface of the support; and e) locking the second end of each beam to the support by passing a fastener at least partially through the support to engage with a recess formed in the second end.

Abstract: A resistive heating element 30 has a higher molybdenum carbide content in a central portion 35 than in a peripheral portion 34. Since molybdenum carbides have a low temperature coefficient of resistance compared to molybdenum, the amount of heat generated in the central portion 35 of the resistive heating element 30 does not increase as much as in the peripheral portion 34 even when the temperature is increased, and the increase in difference in temperature between the peripheral portion 34 and the central portion 35 can be suppressed. In other words, generation of hot spots near the center can be suppressed and a good uniform heating property in a wide range of operation temperatures can be obtained.

Abstract: A multiple stage open coil electrical resistance heater uses a unique coil configuration on either side of a dividing support plate so that the air passing through the heater is heated uniformly when one or more stages of the heater are energized. The coil configuration also creates a termination zone on one side of the heater so that the terminations of the coils can be situated on the cool side of the heater. The heater coils also includes specially configured terminals to facilitate connection to power using an elongated member such as a stud or bolt.

Abstract: Spacer for a vertical support structure of a heating element coil includes a mating feature including complimentary components on first opposing sides of the spacer, a cavity, open to second opposing sides of the spacer, and an extension offset from an axis intersecting the mating features, the extension including a pocket sized to fit an individual loop of the heating element coil. The spacer can be incorporated into a support structure for a heating element coil interlocking adjacent loops of the coil so that they are retained in a collinear and concentric arrangement while allowing the loops of the coil to move freely inward and outward from the central axis in unison.

Abstract: A heater plate is constructed with an embedded thermal diffusion layer of pyrolytic graphite to provide increased temperature uniformity in a critical heating surface. The heater has first and second metal plates with a heater element contained within the first plate and a core of the pyrolytic graphite diffusion layer sandwiched between the heater element and the second metal plate. The diffusion layer may be sputter metal coated to improve bonding of the layer to the plates.

Abstract: An open coil electrical resistance heater uses a number of offset insulators to support the coil of the heater. The offset insulators configure the run of coil in a sinusoidal shape to hold the insulators in a more secure manner and reduce vibration and noise generation during heat operation. The sinusoidal configuration of the coil also reduces the problem of shadowing of portions of the resistance wire coil.

Abstract: A resistive heating element 30 has a higher molybdenum carbide content in a central portion 35 than in a peripheral portion 34. Since molybdenum carbides have a low temperature coefficient of resistance compared to molybdenum, the amount of heat generated in the central portion 35 of the resistive heating element 30 does not increase as much as in the peripheral portion 34 even when the temperature is increased, and the increase in difference in temperature between the peripheral portion 34 and the central portion 35 can be suppressed. In other words, generation of hot spots near the center can be suppressed and a good uniform heating property in a wide range of operation temperatures can be obtained.

Abstract: Heating flange (1) for heating a flow of gas as it flows though a cross-section of flow (S), wherein the heating flange (1) is designed such that it can be inserted or interposed in an intake line (A) of an internal combustion engine and has at least one heat conductor (5) that extends through the cross-section of flow (S) from a mounting point (6a) to an immediately following further mounting point (6b) on the heating flange (1), as well as a retaining leg piece (2), which is provided with at least one of the mounting points (6a).

Abstract: The invention refers to an electric heater for a clothes dryer, said heater comprising at least one heating wire, a ring shaped support structure carrying the at least one heating wire. The at least one heating wire is a flat wire bent into loops.

Abstract: An electrical resistance heating element of the sort suitable for use in de-icing an aircraft surface includes a foil patterned with a plurality of holes. The holes are in a first patterned region that extends in a first direction from a first end to an opposite second end. The holes define multiple electrical paths between the two ends. The holes, which may vary in size, are configured and dimensioned such that the multiple electrical paths in areas away from lateral edges of said first patterned region are all non-parallel to the first direction. In other words, the electrical paths do not follow a straight line from the first and second ends, but rather must wend their way around the overlapping holes.

Abstract: An open coil resistance heater assembly is made for universal mounting between left and right hand installations in an appliance or other equipment. The heater assembly has its coils arranged symmetrically about a bisecting plane of the heater assembly and/or a center line of its terminal assembly aligned with the bisecting plane. The symmetrical coil arrangement and/or bisected terminal assembly allow the heater to be used in right hand or left hand installations.

Abstract: An integrate device includes a heater thermally coupled to a plurality of flow-through tubes to perform thermally-driven chemical reactions. A wire mesh heater is wrapped around each of multiple flow-through tubes, thereby creating a thermal interface between the mesh and the tubes. Each end of the wire mesh is coupled to an electrical contact. The electrical contacts are preferable positioned at an exterior portion of the integrated device to be easily placed in electrical contact with a voltage source. As current passes through the mesh, heat is produced. The heat passes from the mesh to each of the flow-through tubes via the thermal interface. The flow-through tubes can be fluidically coupled to a sample preparation module. The sample preparation module, the flow-through tubes, and the heater can be integrated within a single integrated device that provides automated sample preparation and thermally-driven chemical reactions for a variety of applications.

Abstract: A cartridge heater, especially a compressed cartridge heater (1) has at least one heating coil (8, 9), which is arranged exposed in a metallic tubular body (2) and is embedded in a granulated insulating material. The ends of heating coil portions (8, 9) are provided with terminals (7) projecting from the tubular body (2). To make it possible to manufacture such a cartridge heater with minimal effort in terms of labor and material, a flat insulating plate (10) coordinated in its width with the internal diameter of the tubular body (2) is provided as the carrier. The heating coils (8, 9) extend along the two flat sides of the insulating plate (10) and the two heating coils (8, 9) are connected to one another by a coil section (12, 12?), which is led around a deflecting edge (27) of the insulating plate (10).

Abstract: An electrical heating device has an integrally manufactured support made from insulating material. Depressed paths for introducing a heating element are provided. A klixon functioning as a thermally actuated switch is inserted from above into an opening in the central area of the support and its electrical terminals project over the bottom side and are bent round for mechanical fixing.

Abstract: A fault protected aircraft heated floor panel is provided. The floor panel includes upper and lower floor panel skins and an electro-resistive heater element interposed between the upper and lower floor panel skins. The floor panel further includes a controller for controlling current delivered to the heater element, the controller including a ground fault interrupt circuit that detects excess reactive current provided to the heater element. The controller interrupts the current delivered to the heater element as a result of the ground fault interrupt circuit detecting the excess current.

Abstract: A multiple stage open coil electrical resistance heater uses a unique coil configuration on either side of a dividing support plate so that the air passing through the heater is heated uniformly when one or more stages of the heater are energized. The coil configuration also creates a termination zone on one side of the heater so that the terminations of the coils can be situated on the cool side of the heater. The heater coils also includes specially configured terminals to facilitate connection to power using an elongated member such as a stud or bolt.

Abstract: An open coil electrical resistance heater uses a number of offset insulators to support the coil of the heater. The offset insulators configure the run of coil in a sinusoidal shape to hold the insulators in a more secure manner and reduce vibration and noise generation during heat operation. The sinusoidal configuration of the coil also reduces the problem of shadowing of portions of the resistance wire coil.

Abstract: A heating unit includes a plurality of radiant heaters, a plurality of brackets on which the radiant heaters are mounted in a row, and a frame on which the brackets are mounted in a parallel arrangement and thereby the radiant heaters are mounted in a grid configuration, wherein each of the radiant heaters includes: a support plate substantially having a rectangular shape; a pair of connection terminals substantially perpendicularly extending, while having a space therebetween, from one surface of the support plate; and a strip-shaped heater element arranged between the pair of connection terminals and covering the one surface of the support plate, and wherein the connection terminals have connection portions projecting from the other surface of the support plated, and each of the brackets has a terminal hole into which the connection portion is inserted.

Abstract: An electric heater, comprises a heating block held in a housing and including parallel layers of heat-emitting and heat generating elements. A grid arrangement covers the respective frame apertures in the housing and reinforces the housing. First struts of the grid arrangement, extending at right angles with respect to the layers, are assigned to the housing, and second struts extending parallel with respect to the layers are defined by the heating block. Moreover, a heat generating element of an electric heater, comprises a position frame made of an insulating material and defining receptacles arranged side by side each for at least one PTC heating element. The receptacles are arranged between conductor paths against which the PTC heating elements are placed in an electrically conductive manner.

Abstract: A heater for a heating or heating and air conditioning unit employs a screen positioned between a heater and a fan of the unit. The screen disrupts air flowing from or to the heater to reduce noise generated by the unit when the heater is energized. The screen partially disrupts the air flow between the heater and the fan.

Abstract: A heater assembly for a dryer is stably assembled and reduces noise. The heater assembly for a dryer includes hot wires electrically heated an insulator provided with a groove at the center, having lower and upper portions into which the hot wires are fixed, and a partition plate including an insertion hole into which the insulator is inserted and at least one clamp portion provided at the rim of the insertion hole and fixed into the groove.

Abstract: A patterned foil sheet heating element has a first discrete region patterned with a first plurality of holes forming multiple conductive ribbons and having a first sheet resistivity. It also has a second discrete region patterned with a second plurality of holes forming multiple conductive ribbons and having a second sheet resistivity. At least some of the multiple conductive ribbons in the first discrete region are in electrical continuity with at least some of the multiple conductive ribbons in the second discrete region, and the first discrete region and the second discrete region both adjoin a first junction strip of the foil heating element. An electrothermal heating assembly may be formed using such a patterned foil sheet sandwiched between two layers of material which may be thermally conductive and electrical insulative.

Abstract: An open coil resistance heater assembly is made for universal mounting between left and right hand installations in an appliance or other equipment. The heater assembly has its coils arranged symmetrically about a bisecting plane of the heater assembly and/or a center line of its terminal assembly aligned with the bisecting plane. The symmetrical coil arrangement and/or bisected terminal assembly allow the heater to be used in right hand or left hand installations.