Abstract: A method and apparatus for heating a loadlock to inhibit the formation of contaminants within the loadlock. At least one heater is attached to the walls of the loadlock to boil contaminants from the surfaces within the loadlock. These desorbed contaminants are exhausted from the loadlock by a vacuum pump. Alternatively, a purge gas can be supplied to the loadlock while the loadlock is being heated. The flow of purge gas flushes the desorbed contaminants from the loadlock.

Abstract: A substrate processing apparatus comprises a process tube which forms a processing chamber provided at its lower end with a furnace port, a boat which is to go in and out from the processing chamber for transferring a substrate or substrates into and out from the processing chamber, a first preliminary chamber which is provided at one side of the process tube and which is to be charged with inert gas, and a substrate transferring apparatus disposed in the first preliminary chamber for transferring the substrate or the substrates between the boat and a cassette which accommodates the substrate or the substrates. The boat and the cassette are respectively allowed to be inserted into the first preliminary chamber from below.

Abstract: The apparatus provides a temperature controlled environment for processing semiconductor wafers at elevated temperatures. A hot wall process chamber is used for the process steps. The process chamber includes three zones with independent temperature control capabilities. The apparatus is capable of rotating the wafer in addition to providing a gas flow velocity gradient above the wafer for improved temperature and processing uniformity results.

Abstract: Method for the treatment of semiconductor substrates as well as an oven-boat system for this purpose. The oven is embodied as a vertical oven and it is aimed to simultaneously treat a number of substrates arranged one above the other in a boat. To carry out the deposition and such processes at raised temperatures as uniformly as possible, that is, so that each semiconductor substrate substantially undergoes the same treatment, it is proposed on the one hand to vary the ratio of the volume limited by two consecutive armrests and on the other hand the volume limited by screening off the process area and the edge of the substrates from the insertion end of the gas to the discharge end of the gas that flows through the oven.

Abstract: An oven view window comprising a glass substrate, and having disposed on a major surface thereof, a thermally activated, light-scattering coating which, when at a temperature below the activation temperature of the coating is translucent-to-opaque in appearance, but when at a temperature above the activation temperature of the coating is essentially transparent in appearance. Optionally, an infrared reflective coating and a color suppressing coating may also be deposited, in a variety of configurations, onto the oven view window carrying the thermally activated, light-scattering coating.

Abstract: Disclosed is a cooking system comprising a cooking apparatus having a main body formed with a cooking chamber and a cooker driver cooking food within the cooking chamber; an aroma generator provided in the cooking apparatus, selectively diffusing at least one food aroma; an external unit connected to the cooking apparatus via an interface; and a controller controlling the aroma generator provided in the cooking apparatus, to allow the food aroma according to the selected cooking menu through the external unit to be diffused. With this configuration, if a cooking menu is selected through an external unit accessible to the Internet, data on the selected cooking menu is supplied to a cooking apparatus, and a food aroma and a smell remover are generated according to the selected cooking menu, thereby providing a user with complete information on a cooking menu.

Abstract: An oven view window comprising a glass substrate, and having disposed on a major surface thereof, a thermally activated, light-scattering coating which, when at a temperature below the activation temperature of the coating is translucent-to-opaque in appearance, but when at a temperature above the activation temperature of the coating is essentially transparent in appearance. Optionally, an infrared reflective coating and a color suppressing coating may also be deposited, in a variety of configurations, onto the oven view window carrying the thermally activated, light-scattering coating.

Abstract: A quick-disconnect arrangement for an oven door mainly includes two pivotal pins provided at two lateral sides of the oven door and two insertion holes correspondingly provided on two walls of the oven between which the oven door is mounted, such that the oven door is pivotally connected to and between the two walls of the oven through engagement of the pivotal pins with the insertion holes. At least one of the two insertion holes defines a narrow long slot, so that the pivotal pin engaged therewith is movable therein. And, a maximum linear distance between the two insertion holes is slightly larger than a sum of the overall width of the oven door and the full length of one pivotal pin. Therefore, the oven door may be easily and quickly disconnected from the oven by turning the door open and lifting one side of the door adjacent to the narrow long slot to disengage the pivotal pin at that side from the narrow long slot and then removing the door from the electric oven.

Abstract: An electric oven (1) has an oven cavity (2) for receiving one or more items to be heated, and a radiant electric heater (3) incorporating at least one heating element (6). The heater (3) is supported at a wall (4) of the cavity and has a face (5) directed towards the cavity (2) for radiating heat into the cavity from the at least one heating element (6). The face (5) of the heater is covered by a light-permeable sheet (10) spaced from the heating element (6), the sheet being in the form of a fabric which may comprise filaments or a lattice of glass, ceramic, or metal. An electric lamp (13) is provided behind the sheet (10) and additional to the at least one heating element (6) and is arranged to provide illumination of the oven cavity (2) through the sheet.

Abstract: A method and apparatus is provided for operating a self cleaning oven wherein the monitoring of exothermic chemical reactions within a catalyst can be used to determine when the combustion of food material is complete, in order to terminate a self cleaning cycle. During a self clean cycle, an oven cavity is heated to and maintained at an oven clean temperature suitable for oven cleaning. A catalyst is disposed within an exhaust passage of an oven cavity and the amount of heat generated within the catalyst is sensed. The self clean cycle is terminated a predetermined time after heat generation within the catalyst ceases.

Abstract: An electric oven having an open fronted self-supporting removable box-like liner that can be completely removed for cleaning. The liner has a slot to receive a heating element mounted inside the oven at a rear wall. When the liner is inserted or removed, the heating element slides through the slot without being electrically disconnected. The front end of the heater is supported by a dome integral with a base of the liner. The liner covers or obscures the whole of the inside of the oven so that no cleaning of the oven surface is required. The liner may be removed for washing in a dishwasher.

Abstract: The present invention provides a method and apparatus for cooling the exterior of a toaster oven. The toaster oven has a cooking chamber and a product slide within an exterior casing. Outside air is forced into a channel formed between (1) the product slide and the exterior casing and (2) the cooking chamber and a corresponding portion of the exterior casing. The forced air is then directed out of the channel into a food pre-heating area outside the cooking chamber.

Abstract: A grease resistant oven grille includes an injection molded plastic structure having a plurality of air passages therethrough and a grease resistant powder coating layer overlying the plastic structure for withstanding oven exhaust of about 275° F. (135° C.) without color change. The grease resistant powder is a polyester resin that is electrostatically applied to the plastic structure after priming the grille with a conductive primer.

Abstract: A novel rapid thermal process (RTP) barrel reactor processes a larger batch of semiconductor substrates than was previously possible. The RTP barrel reactor is characterized by a short process cycle time in comparison to the same process cycle time in a conventional CVD barrel reactor. A rapid heat-up of the substrates is one of the keys to the shorter process cycle times of the RTP barrel reactor. The RTP barrel reactor utilizes a radiant heat source in combination with a heat controller that includes an open-loop controller for heat-up and a closed-loop controller for deposition as well as a new energy stabilizer to achieve heating a larger energy stabilizer and volume to a uniform processing temperature in times characteristic of RTP reactors.

Abstract: A toaster for everyday household use includes a conveyor which carries items to be toasted past electrical heating panels. The toaster has an entrance wherein the items are inserted horizontally from a feed tray onto the conveyor. The feed tray being a cover for the entrance way, when the toaster is not in use, automatically opens to become a feed mechanism which closes after the item to be cooked has entered the toaster. The apparatus further has another door which functions as a cover for the exit hole of the toaster which automatically opens to dispense the cooked food item upon the end of a cooking cycle.

Abstract: An oven muffle has mutually spaced apart inner and outer insulating walls. An insulation layer composed of particulate material is disposed in an interstice between the inner and the outer insulating walls. At least one of the insulating walls is pretensioned toward the respective other insulating wall in order to exert a permanent pressure on the insulation layer.

Abstract: A compact oven assembly has a housing and a high power density, low mass heating element. The housing defines a cooking cavity and a slot which permits access to the cooking cavity. The high power density, low mass heating element is supported by the housing above the cooking cavity. The compact oven assembly may include a food support which is arranged so that, when the food support is inserted into the cooking cavity through the slot, the slot of the housing is substantially closed off. The compact oven may also include a switch operated by the food support when the food support is inserted into the cooking cavity through the slot in order to energize the high power density, low mass heating element. Each high power density heating element has a formed parabolic reflector located above it and opposite to the cooking plane. Accordingly, the energy from the high power density heating elements is directed toward the cooking plane.

Abstract: An inserting structure of an oil-collecting plate for an electric oven in the present invention is provided with a plate-inserting groove located below several electric heating tubes, along and inward the lower portion of three inner walls of the roasting room of an electric oven. The plate-inserting groove is properly provided for three sides of an oil-collecting plate to be inserted in so as to make the oil-collecting plate form an oil-collecting scope bigger than the dripping scope formed by the inner walls of the roasting room and take the most effect of collecting oil.

Abstract: A cabinet, sized to accommodate a compressed gas cylinder, includes a heater which maintains the contents of the cylinder within a desired temperature range. By heating the air surrounding the cylinder, the heater heats not only the cylinder but also its valve and regulator. Vent holes, placed near the top and bottom of the cabinet, provide continuous air flow, preventing possible accumulation of flammable gas in the cabinet in the event of a cylinder leak. The invention is especially useful in maintaining a calibration gas at a temperature which insures the stability of the components of the gas. The invention can also be used in any situation in which it is necessary to heat a compressed gas cylinder.

Abstract: A furnace comprises an enclosure, a hearth plate within the enclosure for supporting combustible material, a first heater element adjacent the hearth plate for initial combustion of the combustible material, a filter disposed above the hearth plate for filtering uncombusted products of combustion of the combustible material, and a second heater element adjacent the filter for final combustion of the uncombusted products of combustion filtered by the filter. A controller controls the first and second heater elements independently.

Abstract: An oven door for closing a cooking chamber of an oven, the door being composed of: a frame on the oven; an inner wall and an outer wall both supported by the frame so that the inner wall is located between the cooking chamber and the outer wall, the inner wall and outer wall being positioned relative to one another to delimit an air space; and ventilation elements for establishing a flow of air between the inner wall and the outer wall in order to maintain the outer wall at a low temperature during a cooking operation, wherein the inner wall is made of glass, and the outer wall is removable from the frame and is made of a plastic material selected to withstand the temperatures to which it will be exposed during any cooking operation.

Abstract: A food treatment cabinet having a frame/housing defining a food treatment space. First structure is provided for at least one of heating, cooling, and adding moisture to air within the food treatment space. The frame/housing has a first wall with a first opening therethrough to selectively permit introduction of food into the food treatment space and withdrawal of food from the food treatment space. A first fin projects away from the first wall above at least part of the first opening to inhibit heat transfer between the food treatment space and the atmosphere externally of the food treatment space.

Abstract: A microwave oven includes a main body forming a cooking chamber, and a door hinged to the main body for opening and closing the cooking chamber. The main body includes upper and lower horizontal walls forming a top and bottom, respectively, of the cooking chamber. The door is mounted by two hinges, each hinge comprising a pivot pin carried by the door, and a hinge plate carried by the main body. Each hinge plate includes a door-connecting section and a body-connecting section interconnected by an intermediate section. All three of those sections are integrally formed on a one-piece element. The door-connecting section is at a higher elevation than the body-mounting section and includes a hole rotatably receiving the pivot pin. The body connecting section is directly connected to a respective one of the upper and lower horizontal walls. The door carries a stop element which abuts a vertical edge of a respective hinge plate when the door is in an open state.

Abstract: An electric grill which vaporizes grease and juices and sears the food being cooked. The grill has two sets of heating elements, one located directly beneath the cooking surface and the second located proximate a smoker box. The grease and juices fall from the food located on the cooking surface onto the bottom of the grill which channels the grease and juices into the smoker box. The bottom of the grill also functions as a reflector plate to redirect heat towards the cooking surface. The grease, juices, and, optionally, wood chips may vaporized and smoked by the heating element located proximate the smoker box. A printed circuit board regulates the current passing through the heating elements.

Abstract: An oven for cooking by hot air impingement includes a housing defining a cooking chamber adapted to receive a food product for cooking, a hot air plenum configured and dimensioned to hold a volume of air and a conduit for providing gaseous communication therebetween. Associated with the plenum is a thermal energy source for heating gas disposed in the plenum.

Abstract: A salvage system for on-site removal and recovery of electrical components such as IC's from PC boards. The unit may be mobile having at least two heating stations, each of which includes a mounting apparatus which positions the PCB above an array of infrared heating sources. Initial heating occurs at the first station and subsequent heating to above the eutectic point of the solder occurs at the second station. The unit is designed so that a minimum of workers can attend to the initial sorting, cleaning, sequential heating, extracting and storing of removed components. The heating apparatus includes a fan, baffle and deflector arrangement which helps to maintain even heating and avoidance of hot spots.

Abstract: An electrochemical detection cell (320), which is usable either for potentiometric or electrolytic conductivity detection, has a capillary (305), which controls electrolyte flow. A gas stream containing detectable substances is input through a non-wettable plastic capillary (306). A reaction zone (310) through which both gas and liquid flow is internally wettable. Reference electrode (309) and either electrode (311) or (312) may be used for potentiometric detection. Sensor electrodes (311) and (312), both in the reaction zone, are used for conductivity detection. The electrolyte is fed through the capillary (305) gravimetrically from a reservoir, and the gas stream is supplied by a pyrolysis furnace. The mechanism of ionization in the gas phase ionization detector (GPELCD) is described.

Abstract: A fixture for measuring the temperature of a chamber at a number of locations includes a body sized for placement within the chamber, and a number of temperature probes mounted on the body in orientations such that, when the body is placed within the chamber, the probes measure the temperature of the chamber at desired locations. The body also includes adjustable guides which engage the walls of the chamber to assist in positioning the body.

Abstract: By providing a fully integrated timer controlled actuation and locking system that automatically prevents access to the heating chamber whenever the system is engaged, a unique multi-purpose, automatic toy oven is achieved. In the preferred embodiment, the toy oven incorporates a forced air cooling assembly for substantially reducing the time period required for cooling of the heating chamber and product. In addition, the locking system of the present invention preferably prevents access to the heating chamber until both the desired heating and cooling time have expired and both the heating chamber and the heated product can be safely accessed. In addition, the actuation system automatically engages and sequentially times the heating and cooling cycles, to provide an oven which is easy to use and enjoy.

Abstract: An improved arrangement for insulating the oven liner in a domestic range in which a single batt of insulating material is wrapped around the top, bottom and side walls of the oven liner such that the opposite end portions of the batt overlap each over the entire top wall of the oven liner to provide a double layer of insulation over the top wall and a single layer over the side and bottom walls. The batt is held in place by the oven exhaust vent stack which pierces both overlapping layers. The use of the vent stack for this purpose, together with the reduced thickness of the batt covering the side walls, eliminates the need for bands to secure the batt.

Abstract: A forced convection cooking apparatus having an enclosed cooking chamber within a housing and a resistance heater suspended in the upper portion thereof provides radiant and convection heating to cook food. The food is contained in a cooking tray which has a screen bottom to allow grease, oils and the like to drip through the cooking tray. A drip tray below the cooking tray catches liquids which drip through the cooking tray. A baffle is located in the cooking chamber near the back of the chamber. A fan draws air through a hole in the baffle and forces the air around the curved sides of the baffle toward the front of the cooking chamber.

Abstract: A heater assembly and method of operation for use in processing of a substrate such as a semiconductor wafer, for example in a chemical vapor deposition (CVD) reactor chamber, the heater assembly including a dielectric heater base, radially spaced apart and circumferentially extending heater element segments being arranged on the heater base, operation of the plurality of heater elements being independently regulated, a heater shroud being arranged in spaced apart relation over the heater elements while supporting the substrate for maintaining a blanket of inert gas between the heater elements and the heater shroud. Inert gas is preferably introduced through a central opening in the heater base and is selectively regulated for facilitating processing of the substrate.

Abstract: An electrically heated kiln having a ventilation system in accordance with the present invention includes a hinged upper wall, a lower wall, and side walls forming a firing chamber. The kiln further includes an upper ventilation aperture formed in the upper wall and a lower ventilation aperture formed in the lower wall. A duct connects the lower aperture with the outside environment. An exhaust fan, coupled to the duct, draws incoming air into the kiln through the upper aperture, downwardly through the kiln, and outwardly through the lower aperture into the duct to be expelled outside. The downward movement of the air and kiln gases causes turbulence near the upper portion of the kiln to create a more uniform temperature within the kiln. The apertures are sized and the draw rate is selected so as to provide proper ventilation of the kiln. The draw rate is preferably between 8% and 45% of the kiln volume per minute when measured at room temperature through the lower aperture.

Abstract: A baking oven includes at least one boundary wall defining a baking space and at least one lighting device each including a first part in the form of a low-voltage bulb, a second part in the form of an electrical connection for the bulb, and a lamp socket disposed on the at least one boundary wall. The lamp socket receives the bulb from inside the baking space with the bulb protruding substantially completely into the baking space. The boundary wall has an opening formed therein for receiving and closely surrounding one of the parts of the lighting device.

Abstract: An exhaust duct cooling system is provided for a built-in gas oven wherein cool air is drawn into the oven enclosure and through an oven controls area to cool that area, and then the cool air is directed into a cool air duct which is positioned between the oven cooking cavity and an oven exhaust duct to thermally isolate the controls area while cooling the oven exhaust. The cool air duct has a first, lower outlet below the oven controls, and a second, upper outlet adjacent to an outlet of the oven exhaust duct where cool air and oven exhaust are mixed in a chamber prior to exiting the oven cabinet. Thus, the oven exhaust is tempered prior to being exhausted from the front of the oven.

Abstract: An oven cavity housing for a microwave heating device, an electric toaster and the like consists of component plates which are joined together by tubular pieces provided on one of the plates to be joined together and inserted through holes in the other. These pieces have closed top ends, which are crushed so that no openings are left after the plates are joined and pieces of wire or the like will not pass through them to allow microwave energy to leak out.

Abstract: An apparatus, and process for insulating a splice with a heat shrinkable tube. The spliced wires and tube are transferred inside an oven by moving means, and after the tube is heat shrunk in the oven the wire assembly is then removed from the oven and automatically ejected.

Abstract: A heating oven has a weighing apparatus, and a weight of a food material placed on a tray in a heating cavity is conveyed by Roberval mechanism. The conveyed weight is measured by the weighing apparatus, and the heating oven controls heating time, heating power and the like responding to the measured weight of the food stuff.

Abstract: A wall-mounted type cooking apparatus of the present invention is mounted over a range in a kitchen and comprises a fixing plate mounted on a wall and a body fixed on said fixing plate and serving not only as a cooking apparatus but also as a ventilating apparatus for air nearby the range.A body of the apparatus of the present invention is fixed on the fixing plate by engaging ridge-like shape engaging members formed by making a gap between the rear end of a bottom plate of the body and the lower end of a back plate with supporting members formed laterally on the fixing plate. The fixing plate is provided with locking members for inserting locking bars respectively thereinto in the upper portion thereof. The back plate is provided with an opening for projecting the locking members and the locking bars moving up and downwardly therethrough.

Abstract: An electric oven has a number of heating elements for heating the cooking chamber. A multi-position switch is arranged to couple power to all of the heating elements, such that the chamber can be used as an oven, or to only selected heating elements such that a grilling operation can be performed. However, when grilling it is best if the door of the cooking chamber is at least partially open so that air can circulate.The invention provides a mechanical linkage between the door and the switch such that if the switch is moved into its grill operating position, the door is automatically opened. In addition, if the door of the cooking chamber is closed, the switch is automatically moved into its oven operating position.

Abstract: A toaster oven of variable volume, including a box-like structure having a top oven portion and a bottom oven portion in telescoping relationship, forming a cavity and a front opening, a pin carried by the top portion, offset from and manually rotatable about an axis, a slot carried by the bottom portion adapted to receive the pin to telescope the top portion and the bottom portion, a door carried by the bottom portion adapted to cover the oven opening in all telescoped positions of the top and bottom, and a system of lever arms connected between the door and the food support rack adapted to slide a portion of the rack through the front opening when the door is opened.

Abstract: An electric domestic oven includes an air exhaust channel above the exit from a catalytic reactor. A depression baffle is located in the air exhaust channel to provide a suction orifice in the area of the catalyser unit to draw cooling and cleaning gases from the cooking compartment. The depression baffle has a curved upstream portion and a ramp-shaped downstream portion. A deflector may be placed above the baffle in the channel.

Abstract: An adjustable welding furnace includes a gimbal-mounted furnace housing within which a workpiece may be preheated and subsequently welded. A removable cover is mounted over an access opening in the housing for pivotal movement along either of two edges of the opening. A rotatable spit assembly, which may be mounted in any of several positions on the housing, suspends the workpiece within the housing for rotation independent of pivotal movement of the housing. A drawer-mounted heating assembly may be easily removed from the housing for servicing.

Abstract: A turbine rotor disassembly, handling and reassembly apparatus employs a feedback-controlled electric heating oven to rapidly heat a turbine wheel while the rotor shaft is in the horizontal position. An adapter interfaces the wheel to a handling spool whose outboard end is adjusted to slide on the rotor shaft and to provide a fulcrum for supporting the wheel. A handling trolley includes a soft hydraulic system for supporting the weight of the wheel to avoid damaging the precision machined surfaces of the shrink-fit area while the wheel is being withdrawn. The handling apparatus also provides means for upending, or rotating, the removed wheel through 90 degrees to place its axis vertical for facilitating handling. A sensor system senses a radial motion of the wheel to detect clearance and to establish an appropriate fluid pressure to just balance the weight of the wheel and attached parts. The handling system includes means for rotating the wheel slightly during reassembly to align keyways or the like.

Abstract: A fiber treatment oven is disclosed in which hot gas is flowed parallel to and between fiber pathways within the oven to reduce deflection and breakage of fibers and to reduce end-to-end temperature variations in the oven. Hot gas is emitted centrally of the oven and flows toward ends of the oven. Preferably, an additional, generally tubular stream of hot gas is emitted centrally of the oven and generally surrounds and envelopes the fiber pathways to reduce side-to-side temperature variations.

Abstract: An adjustable welding furnace includes a gimbal-mounted furnace housing within which a workpiece may be preheated and subsequently welded. A removable cover is mounted over an access opening in the housing for pivotal movement along either of two edges of the opening. A rotatable spit assembly, which may be mounted in any of several positions on the housing, suspends the workpiece within the housing for rotation independent of pivotal movement of the housing. A drawer-mounted heating assembly may be easily removed from the housing for servicing.

Abstract: Heat-stable coatings on cookware can be made stain-resistant by including a pigmented brown intermediate layer and a clear topcoat layer containing mica or coated mica platelets for sparkle. Such coatings are particularly suitable for electrical cookware.

Abstract: An electrically heated oven for mobile vehicles, such as vans or recreational vehicles, includes a tightly closed oven compartment divided by an internal, imperforate, vertical secondary wall spaced from the back wall of the oven into a front cooking chamber and a rear heater chamber. A thermostatically controlled, plate-like, low wattage electric resistance heating element operable at the vehicle voltage is located within the heater chamber intermediate the upper and lower edges of the secondary wall, which edges are spaced from the top and bottom walls of the oven to allow convection air flow between the cooking and heater chambers. The front surface of the secondary wall is dull and roughened to readily dissipate heat into the cooking chamber and the rear surface of the secondary wall is smooth and shiny to minimize absorption of heat thereby from the heating element. The oven is mounted from a face plate for easy installation into the vehicle.

Abstract: A thermostat range control device for maintaining a thermostat temperature that has a substantially constant difference with respect to room temperature, and which allows the thermostat to respond quickly and accurately to changes in room temperature. The device includes a detachable enclosure for substantially enclosing the thermostat, a distributed heater within the enclosure having multiple openings therein for providing generally uniform heat within the enclosure, means for allowing room temperature air to enter the enclosure at a level below the thermostat, and means for allowing heated air within the enclosure to exit from the enclosure at a level above the thermostat, in a manner such that substantially only heated air passes the thermostat.

Abstract: Forced hot air alimentary oven comprises an insulated housing, vertically extending chambers situated at opposite sides of the housing, a plurality of parallel, superposed cooking compartments extending horizontally across the housing, heating elements, and a motor-driven fan for forcing the heated air throughout the housing. Relatively long and narrow passageways are defined between the open upper end of each compartment and the base of the compartment located thereabove. Pairs of spaced lips at opposite ends of each passageway act as entrance, and exit, apertures for facilitating communication between the chambers and the cooking compartments. The lips create a stream, or first zone, of rapidly moving laminarly flowing heated air that heats the food products in the superior compartment; a second, larger zone of slower moving air is utilized to heat the food products in the lower compartment. The two zoned hot air flow cooks foods with differing moisture content, such as fruit pies, evenly and thoroughly.