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7293986 |
Vestibule assembly for a heat treatment furnace
The present invention provides a heat treating process chamber having a housing with a flow passage in communication with a vestibule assembly. The vestibule assembly includes an outer ring with a...
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7037409 |
Method of hot-repairing the heating flues of a coke-oven battery and device for carrying out said method
A method and a device for the hot-repairing of the heating flues of a coke-oven battery according to which the completed sections of a heating flue still under construction are heated by means of a...
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6769908 |
Wafer heat-treatment system and wafer heat-treatment method
A wafer heat-treatment system for processing a wafer by a high-temperature heat-treatment process and cooling the heat-treated wafer, comprises walls surrounding a closed space placing the wafer...
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6746238 |
Cooling system for reducing particles pollution
The present invention relates to a cooling system of a furnace, and more particularly, to a multi-cycle cooling system, located by the furnace door. The multi-cycle cooling system comprises the...
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6572368 |
Method and apparatus for cooling a furnace
A method and apparatus for accelerated cooling of a furnace such as a furnace containing a susceptor. Cooling gases are split whereby a first percentage are provided to cool the furnace while a...
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6435868 |
Multi-function chamber for a substrate processing system
A load lock chamber includes a chamber body having an aperture to allow a substrate to be transferred into or out of the chamber. The load lock chamber is configurable in several configurations,...
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6367288 |
Method and apparatus for preventing burner-hole build-up in fused silica processes
In furnaces for producing high purity fused silica glass boules, glass particles have a tendency to build-up adjacent the burner hole rim. It was discovered that unburned furnace gases containing...
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6328561 |
Method for cooling a furnace, and furnace provided with a cooling device
A furnace includes a core tube that has an elongate boundary wall and is configured to accommodate wafers for processing the wafers in a treatment atmosphere. The furnace includes a cooling chamber...
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6238208 |
Method and apparatus for cooling furnace
A method for cooling the heating furnace during the dormant stage of the heating furnace; said method surely and sufficiently shortens the cooling time of the heating furnace irrespective of...
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6129256 |
Reflow furnace for an electronic assembly
The invention provides a reflow furnace for an electronic assembly. The electronic assembly comprises a printed circuit board and a device on the printed circuit board. The printed circuit board...
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5788484 |
Rapid cycle treatment oven
The invention provides an oven which can be used to rapidly heat and cool a workpiece. In one embodiment, the oven includes a first duct which defines an initial leg of an enclosed air flow path...
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5584934 |
Method and apparatus for preventing distortion of horizontal quartz tube caused by high temperature
The present invention relates to an improved equipment in semiconductor processing. The invention includes a horizontal quartz tube surrounded with heating element for processing wafers, an inlet...
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5239612 |
Method for resistance heating of metal using a pyrolytic boron nitride coated graphite boat
A method of resistance heating using a graphite container having a graphite body and a pyrolytic boron nitride coating in which a metal charge of predetermined weight is deposited over the coating...
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5147083 |
Method and apparatus for convection brazing of aluminum heat exchangers
A convection braze furnace for brazing aluminum heat exchangers in an inert gas rich atmosphere includes entrance and exit vestibules forming atmosphere barriers of suspended stainless steel...
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4910684 |
Method of controlling a rotary kiln during start-up
To facilitate a smooth and quick start-up of a rotary kiln, a Fuzzy Logic Control system is proposed, the principal feature of which is to mandate control actions to decrease the specific heat...
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4900333 |
Method of carrying out a gas combustion process with recovery of a part of the heat present in the combustion gases
A method of carrying out a gas combustion process with recovery of the heat from the combustion gases, which comprises passing said gases during the stationary condition of the process through a...
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4859175 |
Apparatus and process for optimizing combustion in chamber-type furnaces for baking carbonaceous blocks
The invention concerns a process and an apparatus for optimizing combustion in a furnace which has open chambers, referred to as a ring furnace, for the baking of carbonaceous blocks, the furnace...
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4834646 |
Process for cooling fired products in a kiln
A process is provided for cooling fired products such as tiles in a kiln by repeating a cooling step to cool down said products, the cooling step comprising blowing a cooling gaseous fluid, e.g.,...
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4761204 |
Chemical recovery process using break up steam control to prevent smelt explosions
An improvement in a chemical recovery process in which a hot liquid smelt is introduced into a dissolving tank containing a pool of green liquor. The improvement comprises preventing smelt...
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4756773 |
Method for cooling a vacuum furnace
A vacuum furnace is cooled in a two-step process. In the first step, a noble gas is injected into the furnace to break the vacuum, and to provide initial cooling. In the second step, a non-noble,...
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4718643 |
Method and apparatus for rapid high temperature ladle preheating
This invention relates to ladle heating methods and apparatus. More particularly, this invention pertains to rapid high temperature ladle preheating utilizing an optimized heating cycle by...
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4615675 |
Furnace channel heating method and apparatus
A method and apparatus for improved preheating and/or curing of the channel of an induction furnace wherein an elongated burner tube is provided with a combustion zone adjacent its forwardmost end...
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4557203 |
Method of controlling a reclamation furnace
This invention relates to an improved method of controlling temperatures within a cleaning or reclamation furnace which is normally used to reclaim metal parts contaminated with combustible...
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4526533 |
Cylinder for guiding a web of textile material
The cylinder for guiding a web of textile material comprises at least one hollow space which is partly filled with a liquid heat carrier and can be evacuated. The pressure increase in the hollow...
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4511124 |
Method and composition for fluidization of accumulated pit scrap in soaking pits
A composition for use in fluidizing accumulated pit scrap in ingot soaking pits is provided which contains from about 38 to about 56 wt. % SiO 2 , from about 2 to about 4 wt. % C, and from about 38...
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4504219 |
Heating apparatus for circulatory-firing open baking furnaces and process for use of the apparatus
The heating apparatus according to the invention concerns open circulatory-firing baking furnaces comprising an assembly of chambers which are heated by gases which circulate in hollow partitions...
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4460334 |
Recuperator
There is provided an improvement in a recuperator of the type having an elongated flow passage defined by an inner heat exchanger wall wherein the flow passage has a selected cross-sectional shape,...
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4457705 |
Calcining system for the manufacture of cement clinker and the like
A calcining system for the manufacture of cement clinker and the like including the combination of a preheater into which the raw material to be calcined is introduced, a rotary kiln which receives...
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4391583 |
Process of thermally treating bulk materials in a rotary kiln
In the treatment of bulk materials with hot gases below the melting point of the charge component it is desired to prevent a formation of undesired crusts during normal operation and when the...
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4367037 |
Temperature controller for photographic heat fixing unit
A temperature controller for photographic heat fixing unit which may be used in an electrophotographic copying apparatus includes a main temperature for detecting the temperature of a heater or...
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4349269 |
Manual paper feed inhibiting device in electrographic copying machine
An electrophotographic copying machine comprises at least one paper supply unit from which a copying is automatically supplied towards a processing station, a manual feed mouth through which a...
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4348102 |
Electrographic apparatus with control system for fixing powder images by heat and contact
An electrographic apparatus by which powder images corresponding to electrostatic images can be formed on receiving material and fixed onto the receiving material by heat and contact is provided...
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4303334 |
Heat regulator for the fusing device in an electrostatic copier
A heat regulator for a fuser in a reproduction machine. The heat regulator includes a fuser cooling fan, and a controller having a cooling fan counter. The cooling fan counter manifests the number...
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4270898 |
Control method for a reclamation furnace
A method for preventing fires and explosions and thus controlling excess temperature within a burn-off or reclamation furnace including a water injection nozzle within the furnace, an automatic...
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4268246 |
Method and apparatus for metal object heat treatment
Apparatus comprising a metal shell enclosing a spaced adapted to be heated, low heat retention, thermal shock resistant insulation on one substantially entire surface of the metal shell, a heater...
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4212628 |
Recovery furnace safety system
During a clean-out period when black liquor supply lines to paper pulp mill recovery furnace fuel spray guns are circulated with purge water or when black liquor firing is interrupted due to low...
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4210097 |
Means for maintaining a non-oxidizing atmosphere at positive pressure within the metallic strip preparation furnace of a metallic coating line during line stops
In a line for coating a ferrous base metal strip with a molten coating metal, the line being of the type having a preparation furnace for the strip comprising a direct fired furnace, a controlled...
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4178358 |
Sulfur plant heatup process
A process for heating up a sulfur recovery plant such as a Claus unit or a combined Claus and SCOT unit, the process including first purging the plant with inert gas and blocking in the purged...
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4148946 |
Method for maintaining a non-oxidizing atmosphere at positive pressure within the metallic strip preparation furnace of a metallic coating line during line stops
In a line for coating a ferrous base metal strip with a molten coating metal, the line being of the type having a preparation furnace for the strip comprising a direct fired furnace, a controlled...
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4146974 |
Drying apparatus
Apparatus for drying webs which includes a housing having two compartments with one compartment open on one side and having heating elements therein. The other of said compartments is closed and...
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4137039 |
Means for the measurement of relative movement between loose raceways and a revolving drum mounted in the raceways
A process and apparatus for measuring relative movement between loose raceways and a revolving drum consisting of generating pulses for one or more revolutions of the raceways by a contactless...
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4116779 |
Starting procedure for internal combustion vessels
A vertical vessel, having a low bed of broken material, having included combustible material, is initially ignited by a plurality of ignitors spaced over the surface of the bed, by adding fresh,...
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4033715 |
Heat processing system
A heat processing system in which a product is efficiently conveyed through a high temperature furnace and in which the product can be stored within a section of the furnace at a temperature less...
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4008993 |
Method of preheating the wall of a furnace channel and article for generating circulation of heated air for preheating the wall of a furnace channel
A method of preheating the wall of a furnace channel, which channel extends through a wall of the hearth of the furnace at one location therein, through an inductor mounted on the wall of the...
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4008042 |
Coal heating temperature control
Method for maintaining preheating equipment used for heating coal at a temperature within a temperature range normally used for heating said coal in said equipment which comprises introducing into...
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4000962 |
Method of heating up glass melting furnaces or the like
A method of heating up to working temperature from cold, a furnace of the regenerative or recuperative type having its interior lined with refractory material, which method comprises projecting...
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3994676 |
Method and apparatus for protecting basic refractory shapes in a basic oxygen furnace
Basic refractory shapes in selected critical wear areas of a working lining in a basic oxygen furnace are protected from spalling due to thermal shock during "burn-in" and initial operation of the...
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3942263 |
Method and apparatus for cooling of hot bulk materials
A method and apparatus is detailed for cooling hot bulk material disposed in gas-permeable cooling buckets which travel from a charging zone to a discharge zone, with the cooling buckets in...
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3897201 |
Process and device for preheating moulds
Process for the steam moulding of parts of expanded thermoplastic material. In this process, there is supplied to the steam chamber surrounding the mould first hot air for preheating the mould...
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3861859 |
COOLING OF ROTARY FURNACE SHELL BURNER PIPES AND METHOD
Overheating of rotary kiln shell burner pipes has resulted in serious deterioration and severely limited service life in a number of operating furnace installations. Various measures have been...
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