Abstract: A resistor includes an elongated cylindrical body having nodes and elongated members. The elongated members interconnect the nodes to form openings between the nodes and the elongated members for the flow therethrough of a cooling fluid. The body is configured to receive electric current from a powered system and to conduct and provide electric resistance to the electric current to dissipate at least part of the electric current as heat from the body. The body also is configured to be coupled with at least one other resistor of the powered system in one or more of a parallel or series arrangement in an electric circuit.

Abstract: A vacuum vapor deposition apparatus includes a vaporization container which has a plurality of equally-diametered release holes arranged linearly and in which the release holes are arranged densely on both end portion sides of the vaporization container. The vaporization container includes therein a current plate having a plurality of equally-diametered passage holes through which vapor of a vaporization material passes. The passage holes are arranged densely on both end portion sides in such a manner that, as conductance per unit length in the arrangement direction of the release holes, conductance by the passage holes is proportional to conductance by the release holes.

Abstract: A combustion tube mounting system releasably mounts a combustion tube to an aperture in the floor of a furnace housing. The combustion tube has a base assembly with a cam and can be manually or automatically unlocked by cam pins in the floor for selectively engaging the cam for lowering the combustion tube from the floor of the furnace. When a new combustion tube is placed on the lower seal assembly and raised, it automatically aligns and engages the upper furnace seal and engages cams on the floor of the furnace housing which lock the combustion tube in place as it is introduced into the furnace.

Abstract: An electric glass hot shop system is described herein that has at least one electrically powered heating unit (e.g., electric furnace, electric glory hole, electric pipe warmer, electric color box, electric annealer, electric crucible kiln) used in the processing of glass.

Abstract: The invention relates to a wax dispenser for dental technology comprising: a wax reservoir in the shape of a hollow tube which contains a liquid wax therein; a nozzle which is disposed on the front end of the wax reservoir and which is in fluid communication with the wax reservoir; a heater which heats wax to keep wax contained in the wax reservoir in liquid state; an air-pressure supplier which increases the pressure in the wax reservoir by the introduction of air from the outside in a pressurization mode and decreases the pressure in the wax reservoir by the discharge of air to the outside in a depressurization mode; and a dispenser actuator comprising a wax passage which allows the wax reservoir to be in fluid communication with the nozzle, and a passage open/shut device arranged to open and shut the wax passage to discharge wax contained in the wax reservoir through the nozzle in the pressurization mode and to introduce wax from the outside to the wax reservoir through the nozzle in the depressurization m

Abstract: A combustion tube mounting system releasably mounts a combustion tube to an aperture in the floor of a furnace housing. The combustion tube has a base assembly with a cam and can be manually or automatically unlocked by cam pins in the floor for selectively engaging the cam for lowering the combustion tube from the floor of the furnace. When a new combustion tube is placed on the lower seal assembly and raised, it automatically aligns and engages the upper furnace seal and engages cams on the floor of the furnace housing which lock the combustion tube in place as it is introduced into the furnace.

Abstract: A resistance furnace provides an improved upper and lower electrode construction with significantly increased coolant flow. The lower electrode has a tip design that significantly lowers the electrode tip temperature during an analysis. The upper and lower electrodes also cooperate with an improved crucible design to significantly reduce the power required to fuse a specimen contained in the crucible. The furnace uniformly heats the floor and lower side walls of a crucible, which lowers the power requirement for specimen fusion and provides higher structural benefits to provide consistent analysis and manufacturing yields. The crucible has a cylindrical body and pedestal base with an annular smoothly curved concave indentation therebetween.

Abstract: A dental obturation system, which is configured such that a power terminal unit is installed between a rotary unit and a cartridge unit such that a heating unit can heat a filling material and a needle member, mounted to the front end of a main body having a battery therein, can be rotated while applying the heated filling material to a root canal, so that an operator can easily and conveniently administer dental treatment without changing his/her posture or the orientation of the main body according to the location of a decayed tooth of a patient.

Abstract: This invention relates to an electric cartridge heater and a method of operation, suitable for use in producing high purity silicon in solar cells or solar modules. The apparatus includes a single-piece elongated heater bar having a length, a first end, and a second end. The apparatus also includes a slot beginning at the first end and running a portion of the length, and the slot dividing the heater bar into a first arm and a second arm. An elbow at the second end joins the first arm and the second arm together. The apparatus also includes a first electrode in electrical communication with the first arm, and a second electrode in electrical communication with the second arm.

Abstract: A combustion tube mounting system releasably mounts a combustion tube to an aperture in the floor of a furnace housing. The combustion tube has a base assembly with a cam and can be manually or automatically unlocked by cam pins in the floor for selectively engaging the cam for lowering the combustion tube from the floor of the furnace. When a new combustion tube is placed on the lower seal assembly and raised, it automatically aligns and engages the upper furnace seal and engages cams on the floor of the furnace housing which lock the combustion tube in place as it is introduced into the furnace.

Abstract: Hot melt adhesive pellets are melted and pressure pumped in a controlled application pattern on the substrate at the application site. The high frequency power supply, induction heated melting susceptor, pressure pump, and pattern control electronics are all contained in a single unit within adhesive projection distance.

Abstract: A heater that may be applied to a substrate. The heater may include a graduating material deposited on at least a portion of a substrate, a resistive material and a thermal barrier dielectric coating. The resistive material may include at least two resistive compositions, wherein the resistivity of the material may be altered by varying the composition in given areas.

Abstract: An apparatus for heating and melting solid lubricants in a delivery drum, including a heating element composed of armored resistors shaped as concentric rings and junction spokes. A hoist lowers and raises the heating element into and out of the drum via vertical rods that are not heated. A first thermal sensor is connected with the heating element, and a second thermal sensor is mounted on the vertical rods. A transfer pump withdraws melted lubricant from the drum via a suction tube having a bottom valve at its foot. A lubricant delivery tube is connected to the output side of the pump.

Abstract: This invention relates to an electric cartridge heater and a method of operation, suitable for use in producing high purity silicon in solar cells or solar modules. The apparatus includes a single-piece elongated heater bar having a length, a first end, and a second end. The apparatus also includes a slot beginning at the first end and running a portion of the length, and the slot dividing the heater bar into a first arm and a second arm. An elbow at the second end joins the first arm and the second arm together. The apparatus also includes a first electrode in electrical communication with the first arm, and a second electrode in electrical communication with the second arm.

Abstract: A hot runner nozzle heater system is provided with a layered heater in communication with a two-wire controller, wherein a resistive layer of the layered heater is both a heater element and a temperature sensor. The two-wire controller thus determines temperature of the layered heater using the resistance of the resistive layer and controls heater temperature through a power source.

Abstract: A compound body comprises a steel base element on which is deposited a heater layer. The base element is made of a precipitation hardening steel. In the form of a manifold or material feed tube in a hot duct system, said base element comprises a round or convex surface receiving the heater layer. This heater layer is a compound layer having several strata and/or strata elements which are thick film pastes or sheets and in such form are consecutively deposited, dried and baked-on. The pre-compression generated in this process in the heater layer is increased in controlled manner by precipitation hardening the base element.

Abstract: Oven for non-metal melting, in particular silicon melting, with a housing enclosing an interior, at least one mould arranged in the interior for receiving a non-metal melt, at least one electrical heating device enclosing, at least partially, the at least one mould for influencing the temperature of the non-metal melt, and a power supply device connected in an electrically conductive manner to the at least one heating device for providing the heating device with a time-variable current I(t), wherein the current I(t) has a frequency of 0.1 Hz to 1000 Hz and the current I(t) is of a magnitude sufficient for setting a predetermined temperature of the non-metal melt, the currents in the plurality, where necessary, of heaters having a defined phase position in respect of one another.

Abstract: An MBE effusion cell is configured to produce an inverted temperature gradient; that is, the top surface of the melt is not cooler than the bottom surface of the melt. In one embodiment, the MBE effusion cell comprises a crucible having tip, central and base regions. First filaments are located laterally adjacent the tip region; second filaments are located laterally adjacent the central region; and third filaments are located laterally adjacent all three of the regions. The radial density of the number of the heater filaments is lower adjacent the base region than adjacent the tip or central regions. In another embodiment, further tailoring of the inverted temperature gradient is obtained by reducing the amount of insulation at the base of the crucible. In another embodiment, at least one heater filament extends substantially along the longitudinal axis of the crucible and is located adjacent its lateral wall.

Abstract: A semiconductor single crystal manufacturing apparatus which can manufacture a single crystal of high oxygen concentration to that of low oxygen concentration within a prescribed standard range of oxygen concentration, as a wafer material for semiconductor integrated circuits, with a high yield, is provided. Heat shields 20, 21 are provided in the entire annular area between respective adjacent heaters of the heaters 4a, 4b, 4c for heating the crucible 3 from the outside periphery side. By using the heat shields 20, 21 for localizing the respective heating regions for the heaters to actively control the temperature distribution for the crucible 3 and melt 8 in the crucible, a single crystal of high oxygen concentration to that of low oxygen concentration can be manufactured within a prescribed standard range of oxygen concentration with a high yield.

Abstract: The present invention provides a system and method for uniform coating of a substrate at high deposition rates by evaporating a coating material in a vacuum chamber. The system includes an evaporator having a heating crucible for containing a coating material to be evaporated and a generally planar heat source disposed so as to heat a surface of a coating material contained in the heating crucible. Preferably, the heat source is manufactured from a ceramic or intermetallic material and includes a first layer defining a first set of openings and a second layer defining a second set of openings wherein the second layer overlies the first layer and is spaced apart therefrom. The first and second sets of openings allow the evaporated coating material to pass therethrough for dispersion of the coating material in a deposition zone defined by a containment shield disposed above the heat source.

Abstract: An injector for equipment for injection moulding of plastic materials comprising at least one first heating resistor and at least one second heating resistor, which are controlled independently of one another and of which one is wound on a first area of the body of the injector extending substantially throughout the axial extension thereof and the other is wound on a second area that extends only along an axial portion of the body of the injector starting from a substantially intermediate area thereof.

Abstract: Film heater apparatus and method for heating a melt channel in a molding device includes structure and/or steps whereby a first dielectric layer is disposed on a surface of a substrate. An active heating element is disposed on the first dielectric layer, the active heating element being configured to generate heat to heat the melt channel. The active heating element has contact terminals arranged to support an electrical connection to the active heating element. A second dielectric layer is disposed over the active heating element, but not covering the contact terminals, thereby permitting coupling of the heater element to an electrical supply.

Abstract: An injection nozzle for an injection molding apparatus is provided. The injection nozzle includes a head portion, a body portion and a heater. The head and body portions are connected to each other and together define a nozzle melt channel. The head portion has a head portion outer surface. The head portion is adapted to be in contact with a molding apparatus component that is at a lower temperature than the head portion. The body portion has a body portion outer surface. A groove is defined in the head portion outer surface and the body portion outer surface. The heater wire is positioned in the groove. The heater is adapted to heat melt in the nozzle melt channel.

Abstract: A temperature sensor for use in hot runner systems includes a resistive element which is connectable via contacting means to a control circuit for a heating device and which includes at least one element portion of larger electrical resistance than its remaining portions, preferably larger by a factor of 2 to 100. The resistive element portions may form U-shaped bows or loops or may be meandering. Two resistive tracks above one another are separated by insulating layers, e.g. ceramic dielectric layers. The resistive element portions may consist of different materials. In connection with a heating device, the temperature sensor is located on or in the body of a manifold or a nozzle, with meandering and/or bifilar heating conductors whose electrical resistance in the middle is smaller than in the top and bottom regions. The temperature sensor portion is tightly enclosed in a zone of high resistance by adjacent heating conductors.

Abstract: When electric current is caused to flow in an electric heater which is disposed on an elongated crucible, an evaporation material stored within the crucible and located under the electric heater is heated and the evaporation material is vaporized and discharged through an opening of the electric heater. Because a metal coating is applied to the outer surface of the elongated crucible, external radiation of heat from the crucible is reduced, and the heat generated by the electric heater is more efficiently used to increase the temperature of the evaporation material. In this manner, efficient heating for the interior of the elongated crucible and uniform temperature within the crucible can be achieved.

Abstract: When electric current is caused to flow in an electric heater which is disposed on an elongated crucible, an evaporation material stored within the crucible and located under the electric heater is heated and the evaporation material is vaporized and discharged through an opening of the electric heater. Because a metal coating is applied to the outer surface of the elongated crucible, external radiation of heat from the crucible is reduced, and the heat generated by the electric heater is more efficiently used to increase the temperature of the evaporation material. In this manner, efficient heating for the interior of the elongated crucible and uniform temperature within the crucible can be achieved.

Abstract: Film heater apparatus and method for heating a melt channel in a molding device includes structure and/or steps whereby a first dielectric layer is disposed on a surface of a substrate. An active heating element is disposed on the first dielectric layer, the active heating element being configured to generate heat to heat the melt channel. The active heating element has contact terminals arranged to support an electrical connection to the active heating element. A second dielectric layer is disposed over the active heating element, but not covering the contact terminals, thereby permitting coupling of the heater element to an electrical supply.

Abstract: A heater assembly for mounting around a fluid flow channel in an injection molding apparatus, the heater assembly comprising: an inner tube comprising a first heat conductive material having a first coefficient of thermal expansion, the inner tube having a selected longitudinal length, an inner surface, an outer surface; a first ring having an inner surface engaged around the outer surface of the inner tube along short selected length of the longitudinal length of the inner tube, the first ring comprising a second material having a second coefficient of thermal expansion that is less than the first coefficient of thermal expansion; a heater mechanism that heats the inner tube to a selected elevated temperature.

Abstract: An injection nozzle for an injection molding apparatus is provided. The injection nozzle includes a head portion, a body portion and a heater. The head and body portions are connected to each other and together define a nozzle melt channel. The head portion has a head portion outer surface. The head portion is adapted to be in contact with a molding apparatus component that is at a lower temperature than the head portion. The body portion has a body portion outer surface. A groove is defined in the head portion outer surface and the body portion outer surface. The heater wire is positioned in the groove. The heater is adapted to heat melt in the nozzle melt channel.

Abstract: There is provided a heating element and an arrangement of heating elements, respectively, for heating crucibles, in particular for LEC devices for growing semiconductor single crystals, with a tulip-shaped bottom heater (20) being built such that the heater legs of the main heater (40) positioned thereabove can barely be guided towards the bottom. Such arrangement of bottom and main heater enables multi-heater arrangements without having to interfere with a lateral insulation (18) which, thus, need not be cut out or pierced.

Abstract: An externally heated hot-runner nozzle for producing injection molded parts has a resistance wire which is composed of an inner electric heating conductor, a ceramic insulating intermediate layer and an outer metal sheath and comprises two end portions to which a heating voltage can be applied, as well as an intermediate section which in the form of a heating coil is assigned to the circumference of the hot-runner nozzle. The resistance wire is characterized in that the two end portions having an outer diameter of 1.5 mm to 2.5 mm are dimensioned to be larger than the intermediate section having an outer diameter of 1.0 mm to 1.8 mm.

Abstract: An electrical resistance heater for use in a crystal puller used for growing monocrystalline ingots according to the Czochralski method comprises a heating element sized and shaped for placement in the housing of the crystal puller for radiating heat within the housing. The heating element has heating segments arranged in a generally side-by-side relationship and electrically connected together. Each heating segment comprises a web and a flange projecting outwardly from the web in non-coplanar relationship therewith. This reduces the cross-sectional area of the heating segment for increasing the electrical resistance and power output of the heater while providing desired structural rigidity.

Abstract: An apparatus for melting and dispensing thermoplastic materials such as thermoplastic adhesives referred to as “hot melt” adhesives. More specifically this invention relates to a one piece melter tank which is suspended from the top of a chassis which also serves as the housing for the entire assembly of the melting and dispensing apparatus.

Abstract: An apparatus such as a glue gun system that utilizes either a stick or solid beads of meltable material such as glue. A motor in the interior of a body of the glue gun drives a drive member. The drive member forces the meltable material towards a nose assembly on the forward end of the body. An inductor and susceptor are provided in the nose assembly to transfer heat to the meltable material. The susceptor has multiple folds to increase the surface area of the susceptor and the rate of heat transfer to the meltable material. Electronics control the drive member and control the power to the inductor.

Abstract: An apparatus such as a glue gun system that utilizes solid beads of meltable material such as glue. The glue gun has a housing that contains a pervious barrier. The pervious diaphragm separates the beads from an airstream that is used to deliver the beads from a hopper to the housing. A load level control detects varying levels of the beads in the housing. A motor in the interior of the housing drives a feed screw. The feed screw forces the beads towards a nose assembly on the forward end of the housing. A heating element is provided in the nose assembly. A co-axial hose delivers the beads from a hopper to the housing through an interior passage. An exterior annulus of the hose delivers the separated airstream away from the housing. Electronics control the rotation of the feed screw and controls the power to the heating element. A hopper contains beads of the meltable material.

Abstract: A heater for the injection nozzle of a die casting machine includes a mounting block which is clamped to the nozzle and has a cavity for receiving an off-the-shelf electric cartridge heater. The mounting block includes a casing formed from a high strength material such as steel and a quantity of a second material having a high thermal conductivity such as copper encased in the casing. A hole sized to receive the injection nozzle is formed through the block and passes through the second material so that the second material forms a portion of the inner surface of the hole. The heater cavity extends into the block along an axis generally perpendicular to the hole such that the second material forms a portion of the inner surface of the hole. The quantity of second material connects the two holes and forms a heat conductive path between the heater receiving hole and the nozzle receiving hole.

Abstract: A hot mix applicator having a hose for transporting heated flowable material, preferably hot mix material, that has an outer casing telescoped over a flexible inner conduit. Slidably, telescopically received within the conduit is tubing comprised a single strip of thin metal helically coiled such that adjacent edges engage to form axially compressible tubing which limits bending to resist conduit kinking and crush. The conduit is attached at each end to a fitting assembly with each fitting assembly immovably fixed by an outer collar to the casing for transmitting hose tension through the casing and away from the more fragile conduit. The casing is comprised of a rubber sidewall reinforced with wire for resisting kinking, crushing, and twisting. Preferably, there is a gap between the casing and conduit that helps insulate the conduit. Each fitting assembly preferably includes a swivel fitting at least partially received within the casing to insulate it.

Abstract: Apparatus for liquifying material in the form of an unloading device includes a platen which may have a one-piece or two-piece structure. The platen preferably includes a plurality of fins with the openings between the fins communicating with a plurality of flow passages in the platen and a plurality of channels also communicating with the flow passages and located interiorly in the platen behind the fins. The various flow passages and channels lead to a discharge flow passage. The discharge flow passage may be directly connected to a pump or one or more discharge flow passages may lead to a chamber of the platen which further heats the liquified material before it is pumped from the platen.

Abstract: Hot runner injection molding systems with externally heated injection runner nozzles for such systems. The heater is preferably a tubular heater with the resistive element applied to the exterior surface by fine film printing. The heater is adapted to externally heat a hot runner injection mold runner nozzle.

Abstract: A liquefying apparatus for melting solid materials has a hopper with a coiled heating element disposed therein which supports and melts the solid materials into a liquid form. The liquid is stored below the heating element in a bottom section of the hopper, and is continually adjusted to a predetermined level, in order to insure that 1) the liquid in the lower section has a substantially constant temperature distribution and 2) a skin or film is not formed on the heating element which would reduce the liquefying rate.

Abstract: The present invention relates to a hot runner probe having a shell-shaped probe body having a molten resin flowing surface which is combined to form a single unit with a ceramic heater wherein the ceramic heater is covered by the heater pattern that consists of high electric-resistance metal and has made the temperature gradient at the tip part higher than that at the center part, and then is insulation-baked. The present invention also relates to high-accuracy injection molding using the hot runner probe under the proper and ideal temperature distribution, by applying the ceramic heater, which is provided with temperature gradients, to the increase and decrease of resistance values due to temperature changes by the one circuit control means.

Abstract: An apparatus for continuously mixing and heating flowable materials comprises an inclined housing, at least two rotatable screws within the housing with each screw having a rotatably mounted shaft and a screw flight. The screws are arranged in parallel juxtaposition with their respective flights of opposite hand intermeshing. The shafts are driven in opposite rotation to each other and each shaft is hollow and is provided with electric heaters within the shaft for heating the flowable material.

Abstract: A method of making an injection molding nozzle having an electrical heating element wound in a channel. The heating element has two terminal wires which extend radially outward parallel to each other from either a common end portion or two separate end portions of the heating element. After the heating element is wound in the spiral channel in the nozzle body, forward and rear collar portions are mounted around the nozzle body to form a radial slot or opening between them through which the end portion or portions of the heating element project. A stud portion is mounted to extend radially outward from the slot with a single bore or two parallel bores through which the end portion or portions extend. These components are then brazed together in a vacuum furnace to form a strong integral structure with the end portion or portions of the heating element secured in place. In one embodiment, a spacer portion having two parallel bores is mounted with ceramic paste to the stud portion.

Abstract: A molecular beam source suppresses a temperature fall at the opening of a crucible, to make a temperature distribution within the crucible uniform and to prevent the phenomenon of bumping of a source substance, whereby the quality of an evaporated film can be enhanced. The source includes a heater disposed around the crucible which is formed of straight parts and U-shaped end parts continuously repeated at equal intervals. The straight parts are arranged so as to extend in a vertical direction of the crucible and the U-shaped end parts are bent outwards at outer-peripheral positions of the opening of the crucible.

Abstract: A heater is incorporated in a pointed conical heat-generating means fixed with a projectile heat-generating body. The heater is a ceramic columnar body having a heat resisting and insulating property. Disposed within the ceramic columnar body is a coiled heating wire of which winding diameter is formed as small as possible. Due to discontinuous energizing process of the heater, thermoplastic synthetic resin adjacent a gate can be heated and fused, or cooled and solidified intermittently, thereby the gate communicated with a cavity can be opened or closed effectively.

Abstract: A high pressure furnace and reusable demountable containment means for setive in situ information of epitaxial layers on a semiconductor substrate while under gas overpressure. The containment means has vent means therein for allowing the inert and reducing or reactive gases in an inner chamber of the furnace to enter into the interior of the containment means to equalize pressures on each side of the housing and to semi-confine the vapor from the epitaxial growth source materials in the interior of the containment means. The containment means has a removable, i.e. demountable, form-fittedly sealed plug which is removed to insert the substrate and growth source elements, which are mounted in a close-space relationship on a support structure, therein. The support structure is inserted back into the containment means and the plug is form fittedly sealed thereto for performing the epitaxial layering.

Abstract: An electrically operated heating element for a hot-runner tool has a heat conductor and is positioned in a hot runner and in runners that derive from the heat conductor and lead to a series of outflow channels 8 from the hot-runner tool. The heat conductor is a flat body with tongues on the side toward the outflow apertures, each tongue extending to the vicinity of one outflow aperture.

Abstract: An electrically operated heating element for a hot-runner tool has a heat conductor and is positioned in a hot runner and in runners that derive from the heat conductor and lead to a series of outflow channels 8 from the hot-runner tool. The heat conductor is a flat body with tongues on the side toward the outflow apertures, each tongue extending to the vicinity of one outflow aperture.

Abstract: An electrically operated heating element for a hot-runner tool has a heat conductor and is positioned in a hot runner and in runners that derive from the heat conductor and lead to a series of outflow channels from the hot-runner tool. The heat conductor is a flat body with tongues on the side toward the outflow apertures, each tongue extending to the vicinity of one outflow aperture.

Abstract: An electrical solder pot has a base with a hollow interior. A housing member also having a hollow interior attaches to the top of the base. The housing member further includes an opening at its top. A threaded socket is fitted in the base so as to accept a heating element which is oriented vertically within the hollow interior of the combined base and housing member. The heating element includes a threaded connector positioned near the opening in the top of the housing and accepts a threaded solder container. The solder container attaches to the top of the heating element and is positioned above the opening in the housing. The heating element includes an internal thermal conducting member located within a tube with an appropriate socket connector on the tube so as to connect to the socket in the base. A monolithic burnt ceramic heater is positioned within a cavity in the thermal conducting member.