Abstract: An electric device for vaporization of additives having a housing with an electric heating disposed therein. The heating includes a heating element and a heat exchanger, to supply the heat generated by the heating element to the heat exchanger and to convey it to the substance to be vaporized. The heating element is a PTC element, clamped between two electrodes and at least one of the two electrodes is disposed in proximity to the heat exchanger and is integrally formed with it.

Abstract: An inventive system for attaching a die to the die pad of a lead frame incorporates a resistive heating circuit into the die pad which heats up to cure an epoxy adhesive between the die and the pad and thereby attach the die to the pad. The heating circuit also heats up to loosen the adhesive so the die can be detached from the pad for rework. The resistive heating circuit is also incorporated into a Thin Small Outline Package (TSOP) between the TSOP's base and die cover. When the heating circuit in the TSOP heats up, it either cures an epoxy adhesive between the base and die cover to attach the die cover to the base, or it loosens the adhesive to detach the die cover from the base so a die inside the TSOP can be reworked. Thus, the inventive system eliminates the need for cumbersome curing ovens and, at the same time, provides a previously unavailable ability to rework certain semiconductor dice after they are packaged.

Abstract: A smoke generator apparatus and method are provided in which the apparatus has a pump connected to a reservoir of liquid smoke agent and to an electrical resistance heating tube incorporated into an electrical circuit. The electrical resistance heater tube has first and second end portions. The first end portion has an inside tube diameter larger than the second end portion inside tube diameter. The heating tube is activated by a control circuit for activating the pump and the electrical circuit to thereby heat the electrical resistance heating tube and pump a fluid from a reservoir into the heating tube. A pressure relief valve located between the pump and the electrical resistance heating tube input portion helps control the pressure and works in combination with the multisized heating tube to allow a low thermal mass of heater for use of a high temperature smoke agent which can be used in an open flame environment.

Abstract: An electrode structure includes a metallic electrode having a configuration of a bending cylinder and having a plurality of members disposed successively in an axial direction of the electrode and mutually connected with adjacent member(s); a case for installing the metallic electrode and one end of a lead wire for electrification therein; and an insulating member which is positioned between the case and the electrode and which the case from the electrode. An electric heater includes a housing, a honeycomb structure installed in the housing, and the electrode structure for electrifying the honeycomb structure. The electrode structure exhibits excellent composability, waterproof ability, and gas sealability.

Abstract: A heating unit (H) for a cook top includes a thin and relatively fragile resistive heating element like, but not necessarily limited to, a ribbon (E). The heating element is mounted on the upper surface of a cake (I) of microporous insulation material. The heating element is arranged in a predetermined pattern on the material and a plurality of staples (10) are used to attach and hold the heating element on the material surface. Each staple is a glass staple and the staples are spaced along the length of the heating element to mount the heating element to the insulation. The staples are electrically non-conductive and do not create heat sinks at their locations of use. Thus, they do not affect the efficiency of heat transfer between the heating element and that which is being heated. The staples are also of a glass material which can withstand high temperatures and numerous temperature cycles to provide a long service life.

Abstract: A ceramic heater coil support bracket, suitable for use in a clothes dryer, supports a helically wound heating coil in spaced apart relation from a support surface or wall. The bracket includes a base adapted for securement to the support surface and a pair of spaced apart arms upstanding from the base defining an open slot extending across the bracket in a transverse direction above the base. Each of the arms includes a coil support post having an arrowhead shape extending inwardly toward of the slot. Each of the posts includes inner and outer coil receiving grooves adapted to receive consecutive turns of the coil. The posts are laterally offset from each other in the transverse direction of the slot so that the posts support different consecutive turns of the coil. The posts have a relatively flat upper surface having an arrowhead shape projecting into the slot with sloping inside and outside surfaces of the arrowhead tapering outwardly and downwardly from the top surface.

Abstract: A heating element (10) for a cook top or the like has a predetermined heating profile by which the temperature of the heating element is rapidly increased from room temperature to a cooking temperature because of an initially high level of power dissipation in the element when a current is applied to the element. As a result of the high level of power dissipation, as the temperature of the element rises toward the cooking temperature, the power dissipation level falls to a predetermined level at which it subsequently remains. A first heating element material (12) has a first predetermined set of heating characteristics, and a second heating element material (14) has a second and different predetermined set of characteristics. When the materials are combined together to form the heating element, the element incorporates therein heating characteristics by which a desired heating profile is achieved; i.e., the rapid initial temperature increase and accompanying decrease in power dissipation.

Abstract: A plug-in diffuser, for use with a substance to be thermally diffused, includes first and second electrical assemblies, each including a male terminal and a female terminal electrically connected to the male terminal. A thermal cutoff mechanism switches from a conductive state to a non-conductive state at a threshold temperature. The male and female terminals of at least one of the terminal assemblies is electrically connected through the thermal cutoff mechanism. A receptacle holds the substance, and a heating element is connected between the first and second terminal assemblies for heating the substance held in the receptacle when the diffuser is plugged into an electrical outlet via the male terminals. The female terminals cooperate to form an electrical socket into which an external device can be plugged.

Abstract: An electric heater intended for heating foam-moulded cushions, for instance for vehicle seats or mattresses. The heater consists of an electric conductor, e.g. an insulated or non-insulated metal wire, which is configured into the shape of one or several bands of closely juxtaposed bights, each one of which comprises a loop and an open portion facing away from the associated loop, substantially all open portions being interconnected by means of local interconnections, e.g. by means of glue, plastic welds or seams, whereby one or several bands of coherent patterns are formed, said patterns intended to be positioned in a mould for casting of cushions, such that the heater to an essential extent becomes anchored in the cushion.

Abstract: The invention is a cooktop having a heating element that is locked in place and held in place by a biasing force to eliminate the rattle of the heating element during normal use and the dislodgement of the heating element during shipping. The heating element comprises a heating coil which is supported on a spider having multiple legs. The heating coils has two terminals which are connected to a receptacle block in the cooktop. The spider has a nose formed on the end of the legs. A biasing device is positioned between the cooktop and the heating coil, preferably a spring mounted to the electrical terminals and abutting the cooktop. The biasing device biases the nose of the spider into a keyway formed in the cooktop to wedge the nose into a locking position relative to the cooktop.

Abstract: An electrically conductive composite heating assembly that has as its foundation an electrically conductive non-woven fiber layer laminated between layers of fiberglass and other dielectric material and has an abrasion resistant outer layer. A conductive silver adhesive connects copper bus bars to the fiber layer, and the copper bus bars connect to an external power source. The heater is designed to withstand repeated mechanical stresses and thermal cycles over extremely harsh environmental conditions. The heater assembly may have additional electrical shielding layers to provide ground fault protection. The heater is particularly suited for aircraft, windmill blades or other like structures that require ice protection.

Abstract: An electric device for the vaporization of additives has a housing in which an electric heating unit is disposed and into which the additive is to be inserted. The device has a heat exchanger, which is in heat connection with the heating unit and which is disposed at a location to vaporize the additive. The device includes a plug for a wall socket which is rotatable relative to the housing and has a rotating joint carrying a set of contacts. A set of counter-contacts is at the housing and arranged in a manner to produce an electric connection in two positions of the plug offset from the housing by about 90.degree., and an annular range in between having a switching position in which the connection is opened.

Abstract: A cooking apparatus comprises a glass-ceramic plate, at least one heat radiator arranged underneath the plate, at least one sensor arranged underneath the plate in an area which is shielded from the heat radiation, for measuring the temperature in this area, and a device for controlling the heating power in dependence upon signals supplied by the sensor. A simple and reliable method of measuring the temperature of the bottom of the cooking vessel can be obtained when, in the cooking apparatus the heat radiator is a halogen lamp system and the hotplate is a ceramic plate which is highly transparent to halogen-lamp radiation and has a degree of absorption of approximately .ltoreq.40%, the sensor engages against the underside of the ceramic plate, and the control device comprises an element for selecting a nominal.

Abstract: An apparatus for the loosening of wallpaper or the like from a substrate by steam. The apparatus includes a steam generator and a working plate, the steam generator being connected to the working plate by a flexible steam hose. The working plate is formed as a steam bar, which includes a U-shaped housing to which a handle is attached. A cover plate or a side piece can be detachably joined to the housing at one or both ends of the housing. The cover plate or side piece is closed at the end opposite the housing, and by choosing to attach either a cover plate or a side piece to the housing, the working area provided by the working plate can be adjusted. The apparatus thus provides a tool which can be easily and quickly adapted to loosen wallpaper in a variety of situations, including making it possible to steam both entire sheets of wallpaper and small portions of wallpaper in small areas where access to the wallpaper is poor.

Abstract: A steam cleaning machine including a housing enclosing a steam generator including a tank provided with a water inlet and a steam delivery connectable to a hose having a cleaning tool attached thereto for steam cleaning a surface. A pressure responsive locking mechanism is provided to lock a cover member in place over the water fill plug of the tank to prevent access thereto while the tank is pressurized.

Abstract: The invention is an electric range with a reversible electrical element. When the electric element is positioned in its non-reversed position, it can be used as a normal electric element for traditional cooking. When the reversible element is positioned in the reversed position, the electric element can be used as a slow cooker.

Abstract: The invention is in the field of electrical resistance heaters, especially heaters for tubes, pipes, or flexible hose. More particularly, the invention is directed to an electrical heater formed as a strip that is permanently set in the shape of a helix. According to an aspect of the invention, an electrical heater is provided comprising a flexible electrical insulation strip bounded by a first longitudinal edge and a second longitudinal edge, wherein the flexible electrical insulation strip is permanently set as a helix such that the first longitudinal edge is adjacent to the second longitudinal edge; and, a flexible electrical heating element encapsulated within the electrical insulation strip.

Abstract: A radiant electric heater arrangement is provided for connection to a dual voltage supply which provides a first alternating current supply voltage and a second alternating current supply voltage higher than the first. The arrangement includes a heater having at least one heating element and a manually operable multiple discrete position switch means for manually selecting in sequence a predetermined number of discrete different power settings for the at least one heating element from the voltage supply.

Abstract: A heating device is formed by a heating plate formed of silica and having a heating surface for heating an object to be heated, a heating element having a predetermined pattern and fixed to a surface opposing the heating surface of the heating plate, and a reflecting plate formed of silica and brought into tight contact with the surface of the heating plate on which the heating element is formed. This heating device is arranged in a processing vessel in a CVD apparatus, and a semiconductor wafer is placed on the heating device. A process gas is supplied into the processing vessel while the semiconductor wafer is heated, thereby forming a predetermined film on the semiconductor wafer.

Abstract: A method is described of processing an electrical signal output from a sensor coil located in an electric heater for use under a cook top in a cooking appliance. The sensor coil is employed to operate a switch to switch on and off a heating element in the heater in accordance with placement and removal of a cooking utensil on and from the cook top. The sensor coil is arranged in the heater within magnetic influence of the electrical heating element, the heating element comprising a material which is ferromagnetic below and substantially non-ferromagnetic above a predetermined temperature within an operating temperature range of the heater. The occurrence of an increase in output signal level from the sensor coil is detected and closure of the switch is effected. Subsequently, the occurrence of a decrease in output signal level from the sensor coil is detected and opening of the switch is effected.