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7012947 |
Arrangement for fastening heating elements to a furnace
The invention relates to an arrangement for mounting electric heating elements in a furnace in which objects are intended to be heated, wherein the furnace wall includes a furnace insulation ( 4 )...
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6993060 |
Resistor made from carbonaceous material
A crenellated resistor made from a carbonaceous material and having the shape of a hollow cylinder for use in furnaces working at high temperature. The resistor is characterized by the thickness of...
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6947467 |
Cooling system for heat treating furnace
An electric resistance high temperature vacuum furnace having radiant heating units evenly spaced around the sides and ends of the furnace hot zone. Pairs of units are automatically regulated both...
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6700918 |
Electric furnace for the production of metal oxides
The furnace comprises a tubular inner chamber for the treatment of the raw material, mounted inside the enveloping body of the furnace which is insulated from the exterior and is provided with...
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6608856 |
Crucible melting furnace
A crucible melting furnace has a feature it has a high thermal efficiency and that differences in temperature does not substantially occur in a molten metal within a crucible and can provide...
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6529544 |
Vacuum heat treating furnace
An electric resistance high temperature vacuum furnace having radiant heating units evenly spaced around the sides and ends of the furnace hot zone. Pairs of units are automatically regulated both...
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6307874 |
Expansion loops for heating elements in vacuum furnaces
A heating element for a vacuum heat treating furnace, a hot zone for a vacuum heat treating furnace, and a vacuum furnace are disclosed. The heating element includes a first heating element portion...
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6157004 |
Electric heating or preheating furnace particularly for lining cylinders and/or for firing metal-ceramic
A heating or preheating furnace for lining cylinders made of refractory material, where those cylinders are particularly designed to act as molds for the lost wax casting of precious metals,...
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6125658 |
Glass furnace and installation comprising same
The invention relates to the electric melting technique, in which the melting energy is dissipated in the bath of melted glass as a result of the Joule effect by means of electrodes which dip...
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6061384 |
Process and apparatus for the production of activated carbon
An improved process and apparatus for the production and reactivation of activated carbon comprising the passing of a substrate through one or more zones defined by electrodes. Electrical energy...
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6031207 |
Sintering kiln
A kiln, useful for sintering basemetal capacitors comprises an inner zone having vertically oriented gas dispersion conduits for the inlet and radial dispersion of gas and vertically oriented...
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5946341 |
Method pertaining to the operation of electric furnaces, and a furnace
An electrically heated furnace includes an inner furnace chamber provided with heating elements of stabilized zirconium dioxide, and an outer furnace chamber in which further heating elements that...
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5881090 |
Quartz used in semiconductor manufacturing device, apparatus for manufacturing the quartz, and method for manufacturing the same
An inner chamber is arranged inside an outer chamber and stores quartz crystal powder. A space is defined between the inner chamber and the outer chamber, and an oxygen gas is introduced into that...
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5835525 |
Furnaces and linings having segments with surfaces configured to absorb and reradiate heat
Dual electric/gas heating in a crucible melting furnace with segmental lining, and lining and segments of linings for same, are disclosed.
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5703901 |
Calcination furnace
A calcination furnace capable of variably setting calcination conditions such as a size of a calcination chamber, a temperature, a temperature distribution and flowing of gas in the calcination...
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5579334 |
Method and apparatus for reacting solid particulate reagents in an electric furnace
A furnace comprises a furnace shell rotatable about a rotational axis. The furnace shell provides a furnace chamber for holding a solid particulate reagent as the furnace shell rotates. At least...
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5517001 |
High performance horizontal diffusion furnace system
Performance of a high temperature diffusion furnace is enhanced by an improved multi-furnace module design. The furnace is constructed of materials suitable for clean room environments with an...
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5501159 |
Method of controlling hydrocarbon release rate by maintaining target oxygen concentration in discharge gases
In a hydrocarbon release rate controlling method, a first chamber is provided capable of receiving successive batches of feed materials for thermal processing having widely varying energy content,...
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5502742 |
Heat treating furnace with removable floor, adjustable heating element support, and threaded ceramic gas injection nozzle
A heat treating furnace has a hot zone enclosure with a substantially rectangular cross section. The floor of the hot zone enclosure is formed such that it is removable independently of the...
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5498852 |
Oval top loading kiln having removable shelves
A kiln method and apparatus wherein a kiln chamber is formed of appropriate material, preferably having an oval cross-section with grooves in the narrower sides of the oval and oval shaped shelves...
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5467365 |
Process for the recovery of lead arising especially from the active material of spent batteries, and electric furnace intended especially for the use of the process
An electric furnace (containing an immersed electrode) and a process for the recovery of lead, arising especially from solid residues. Fines, which are a product of physically crushing spent...
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5432319 |
Furnace for heat treatment of dental products in an inert atmosphere
A high temperature furnace for heat treatment of various products, and for sintering. One of the uses is for preparing dental products such as dental crowns, bridges, implants and the like. The...
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5405264 |
Device for carrying a charge in a furnace
A device for carrying a charge in a reheating furnaces comprising at least one skid pipe through which a cooling fluid flows, the skid pipe having at least one rider provided with at least one...
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5406582 |
Apparatus and process for activation and reactivation of carbon by electrical resistance heating in the presence of steam
An apparatus and process for the activation or reactivation of carbon in a tubular reactor that consists of two or more sequential sections, each section containing a descending column of carbon,...
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5353719 |
Apparatus and method for controlled processing of materials
An apparatus for controlled processing of materials includes a coolant jacketed vessel defining a first pyrolysis chamber and a second oxidation chamber, first heating elements mounted in the...
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5327454 |
Bridge for connecting cores in a manufacturing equipment of polycrystal silicon
In a equipment for manufacturing polycrystal silicon by depositing it on filament cores electrically heated, by means of thermal decomposition of monosilane gas, a bridge for connecting said...
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5317592 |
Direct resistance heating electrical furnace assembly and method of operating same
A direct resistance heating electrical furnace of the type in which a bed of electrically conductive elements are located between two spaced electrodes in the furnace, and a method of controlling...
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5289787 |
Multiple unit material processing apparatus
A material processing apparatus includes a casing having outer and inner spaced walls forming an airtight vessel inside of the inner walls and a channel between the outer and inner walls...
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5287383 |
Method and apparatus for producing active carbon using carbon-containing material
An apparatus for producing an active carbon using a carbon-containing material inclusive of an used active carbon as a raw material wherein the carbon-containing raw material is carbonized in a...
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5283804 |
Process and apparatus for graphitizing carbon bodies
Carbon bodies to be graphitized are clamped together in a horizontal train, n which adjacent end faces of said bodies adjoin each other, and are heated by a flow of electric current in a...
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5251231 |
Vacuum furnace
An electrically heated vacuum furnace has a plurality of heating elements (13) distributed in an array extending within the furnace. This allows accurate control of the application of radiant heat...
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5222074 |
Thermal decomposition cell
A thermal decomposition cell for producing a molecular beam from a material gas, includes: a crucible maintained at a given temperature necessary for thermal decomposition of the material gas which...
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5206880 |
Furnace having tubes for cracking hydrocarbons
A furnace for cracking of hydrocarbons, comprising one or several tubes through which the hydrocarbons flow during intensive heating and subsequent cracking. The starting material for the process...
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5200975 |
Furnace for viscoelasticity measuring device with concentric gas cooling shield
A double cylinder comprises an inside cylinder around which a heater wire is wound and a cylinder disposed outside thereof, and a furnace body filled an adiabatic material. Since cool air from a...
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5193100 |
Apparatus for detecting gaseous discharge in vacuum furnaces
An electrically heated vacuum furnace is provided with special lead-through devices for transmitting current to the heating elements. In order to recognize gas discharges which can occur between a...
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5190901 |
Method for producing active carbon using carbon-containing material
A method and an apparatus for producing an active carbon using a carbon-containing material inclusive of an used active carbon as a raw material wherein the carbon-containing raw material is...
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5173921 |
Apparatus and process for activation of carbon by electrical resistance heating in the presence of steam
In an apparatus and process for the activation of carbon from carbon feedstocks by electrical resistance heating in the presence of steam, which comprises preheating particles of the carbon...
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4966624 |
Method and apparatus for electric refining of lead
A method for electric refining of lead with alternating current in which the basic stage of the process is preceded by two stages, a preparatory stage and an initial stage. The preparatory stage...
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4668287 |
Process for producing high purity zirconium and hafnium
This is a process for producing high quality zirconium or hafnium sponge. It is especially useful for producing the very high purity zirconium which may be used to line the inner surface zirconium...
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4663763 |
Charge-load support for a glow discharge furnace
A charge-load support for use in a glow discharge furnace comprises first and second coaxial tubular members joined at one end and capped at the other end to provide a re-entrant entry to the space...
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4606037 |
Apparatus for manufacturing semiconductor single crystal
The heater member of a furnace for heating the crucible used for fusing raw materials for a semiconductor single crystal is provided with reinforcing members made of a material such as alumina or...
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4543124 |
Apparatus for continuous steelmaking
Apparatus for the continuous making of steel in an electric steelmaking furnace, having a charge material preheater, continuous charging means, and means for removing refined steel without removing...
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4509179 |
Vacuum sintering and hot isostatic pressing in the same vessel
An apparatus for heating a workpiece at elevated temperatures both under vacuum and under superatmospheric pressures comprises a vacuum pressure vessel comprising a cylindrical pressure shell...
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4362501 |
Process and arrangement for the zonal heating or cooling of elongate treatment members
A process and arrangement for the continual zonal heating or cooling of perably elongate treatment members within at least one zone extending perpendicular or transverse to the longitudinal axis,...
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4347431 |
Diffusion furnace
A diffusion furnace (11) includes a typical process tube (12) and an outer envelope (26) which forms an annular chamber (37) with the process tube. A heating element (29) of high purity graphite...
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4247734 |
Flexible thermocouple for vacuum electric furnaces
A flexible mounting for thermocouples for vacuum electric furnaces is described, which is particularly suitable for furnaces for nitrided or carburized case formation to avoid line of sight...
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4033564 |
Crucible for melting, heat retention and pouring of metals
A crucible for melting, and particularly for heat retention and pouring of metals, in particular light metal- or zinc- alloys, with a heat source arranged inside of the melt. A heat source tube...
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3751633 |
PLUG-IN CHAMBER FURNACE
A burn-out furnace having separate upper and lower units with the upper unit being detachably mountable on the lower unit, one of said upper and lower units being the element-containing ceramic...
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3749805 |
FLUID BED FURNACE
A fluid bed furnace has an electric heating coil mounted on the outer face of a guard element frame which is positioned within the shell of the furnace so as to be immersed in the granular material...
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3609199 |
PUSH-THROUGH FURNACE WITH GRAPHITE ROD HEATING
An electrically heated push-through furnace for the sintering of powder metallurgy molded parts and containing an elongated chamber is provided with a plurality of graphite rods parallel to the...
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