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Class 432/24 - Modulating or stabilizing pressure or temperature


Subclass of Class 432 - Heating
Definition: Process including a step changing an operational parameter
No. of patents: 59
Last issue date: 03/04/2008


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NumberTitleIssue Date
7338629Integrated metal processing facility
A system and method for forming and heat treating a metal casting are provided. ...
03/04/2008
7275582Methods and apparatus for heat treatment and sand removal for castings
A system and method for heat treating castings and removing sand cores therefrom. The castings are initially located in indexed positions with their x, y, and z coordinates known. The castings are passed through a heat treatment station typically having a series of ...
10/02/2007
7258755Integrated metal processing facility
An integrated metal processing facility in which molten metal is poured into a series of molds at a pouring station to form metal castings, which are then transferred to a heat treatment line. Prior to introduction of the castings into a heat treatment station of th...
08/21/2007
7247584System and method for selectively increasing surface temperature of an object
A system and method for selectively increasing the thermal effect of a radiant energy source to the surface of an object relative to the substrate is described in the context of rapid thermal processing of semiconductor wafers, and apparatus produced therefrom. A ra...
07/24/2007
7077993Apparatus for softening a selected portion of a steel object by heating
Differential hardening apparatus for softening a portion only of a metal workpiece such as a die block consisting of apparatus for presenting a workpiece to a heat source which impinges heat directly on the workpiece and control means for causing the heat to be dire...
07/18/2006
6935856Method of improving the temperature profile of a furnace
A furnace apparatus and method for increasing the productivity and/or quality of reheated products by improving the temperature profile of a furnace for reheating products. ...
08/30/2005
6901990Method and system for processing castings
A method and system of processing castings is provided in which one or more castings are deposited into a mobile furnace and moved from one station to another of a multi-station casting processing system. The interior of the mobile furnace is heated so as to maintai...
06/07/2005
6736927Apparatus for increased workpiece throughput
A system is disclosed for speeding workpiece thoughput in low pressure, high temperature semiconductor processing reactor. The system includes apparatus for loading a workpiece into a chamber at atmospheric pressure, bringing the chamber down to an intermediate pres...
05/18/2004
6436335Method for controlling a carbon baking furnace
A method for management of an anode furnace, from which an adjustable volume of flue gas is directed into a flue system, comprises the steps of measuring the actual flue gas temperatures in flues of each section as actual temperatures, taking related set ...
08/20/2002
6409932Method and apparatus for increased workpiece throughput
A method is disclosed for speeding workpiece thoughput in low pressure, high temperature semiconductor processing reactor. The method includes loading a workpiece into a chamber at atmospheric pressure, bringing the chamber down to an intermediate pressur...
06/25/2002
6276929Method for controlling kiln pressure
A method for controlling kiln pressure for a shuttle kiln having an exhaust gas fan and an exhaust gas damper in an exhaust gas passage includes the steps of performing a control operation for controlling the number of revolution of the exhaust gas fan to...
08/21/2001
6113386Method and apparatus for uniformly heating a furnace
A method and apparatus is disclosed for heating metal billets or other separate pieces of metal in a continuous furnace using two different burner systems. The primary burner system provides the majority of available heat at relatively high flame temperat...
09/05/2000
5876197Method for heating a fuel-fired industrial furnace and regenerator/burner system therefor
In order to create a regenerative, energy-saving fuel firing for an industrial furnace, particularly for a metal smelting furnace, that can flexibly take all possible time and space operating conditions and demands of the furnace to be heated as well as t...
03/02/1999
5639233Kiln construction and method of firing the same
A kiln and method of firing kilns or the like in which high firing rate gas streams are introduced into the ware treating chamber in the form of pulsed jets and a continuous low firing rate gas stream is also introduced into the ware treating chamber for ...
06/17/1997
5595481Temperature control method for heating kiln
A method for controlling temperature in a heating kiln is able to maintain the temperature uniformly at a set temperature of the kiln. Output of each burner provided in the kiln is controlled on the basis of temperatures at plural positions affected by pl...
01/21/1997
5595483Method and apparatus for thermal treatment of materials containing vaporizable substances
Materials containing vaporizable substances are exposed successively in at least two treatment chambers (10, 13, 14), which can be closed off with respect to each other, to a series of decreasing pressures and increasing temperatures. The vaporizable subs...
01/21/1997
5595480Process for sintering industrial waste
A method for sintering industrial waste into environment conserving stones. The process mixes waste industrial earth and industrial waste in a predetermined ratio, and forms sterile environment protecting stones with high strength by the following process...
01/21/1997
5560305Burner block and method for furnace
A burner block for mounting a burner within a furnace containing a melt to be heated by the burner. The burner block comprises a body having a passageway terminating in a divergent opening. The passageway is configured to receive the burner so that the bu...
10/01/1996
5520538Low-gas temperature stabilization system
The temperature of articles in an "environmental" chamber is stabilized by evacuation of the "environmental" chamber, after having stabilized the temperature of such an article to approximate that of a controlled-temperature member spaced from the article...
05/28/1996
5280495Furnace refractory extraction system and method
A furnace refractory extraction system and method includes a selectively removable bottom portion which is attached to a refractory extraction device associated with a container for drawing the refractory lining of a coreless induction furnace into the co...
01/18/1994
5273424Vertical heat treatment apparatus
A vertical heat treatment apparatus has a reaction furnace, gas-introducing mechanism, a gas-exhausting mechanism, and temperature-sensing means. The reaction furnace is made up of a reaction tube and a heating mechanism. The reaction tube contains a plur...
12/28/1993
5189963Combustible atmosphere furnace control system
The operation of a combustible atmosphere furnace is controlled by monitoring the temperature of the combustible atmosphere, and the rate-of-change thereof. The measured rate-of-change is compared to a previously determined safe rate-of-change so as to an...
03/02/1993
5149265Method for firing direct-fired burner
A method for providing uniform temperature in a furnace, such as a soaking pit or a reheat furnace is disclosed. Temperatures at a front wall and a burner wall within the heating chamber are constantly monitored by a computer, and the computer operates a ...
09/22/1992
5143626Sludge dehydrater having specially designed augers and infrared heater elements
The invention discloses an apparatus and process for destroying pathogens and dehydrating streams of waste in one, continous process. More particularly, the invention contains an auger with specially modified, variably angled blades which agitates a strea...
09/01/1992
5110287Infra-red burner system for furnaces
A gas burner assembly for a baking furnace is described. It includes a burner tube having an open outer end and an open inner end, with the inner end being arranged to extend through an opening in a furnace wall. A connector is provided for connecting the...
05/05/1992
5099442Furnace temperature control apparatus using adjustment input
A temperature control apparatus of a learning type for a furnace which runs repetitively with a certain operating pattern of temperature change with time. The apparatus has a dual system model with respect to an enlarged system consisting of the furnace a...
03/24/1992
5044938Method of controlling temperature of a joining area between two different strip materials in a continuous strip processing line
Disclosed is a method of controlling the temperature of a joining area between two different strip materials in a continuous strip processing line. In the case where a strip material after the joining area requires a nozzle pressure greater than that of a...
09/03/1991
4964798Method and apparatus for quickly purging atmosphere gas from bell furnace
A method and apparatus for vacuum purging bell type furnaces is provided. A vacuum shell unit is provided which is removably emplacible over the inner cover of the furnce and has a vacuum tight seal to the base. A vacuum is pulled both within the inner co...
10/23/1990
4921422Method for controlling the preheating zone of a tunnel kiln
This disclosure is directed to a method for controlling the preheating zone of a tunnel kiln which includes firing and cooling zones. The method comprises forcedly blowing air from the entire ceiling portion of the preheating zone in the downward directio...
05/01/1990
4910684Method 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 consumption along a straight line from an initial high value t...
03/20/1990
4834644Premix oven pulsing control system
A plurality of burners are provided for burning a combustible gas mixture. A conduit extends to each of the burners for supplying a combustible gas mixture thereto. A mixing device is coupled between the conduit and a source of air and a source of combust...
05/30/1989
4773850Low profile kiln apparatus and method of using same
A manufacturing method and apparatus is provided for making building and other types of brick. The apparatus requires a minimum of excess (or surge) production, utilizes automated equipment which is highly dependable and which is easily operated and contr...
09/27/1988
4755137Process and installation for maintaining the lining of a furnace shell
A process and apparatus for maintaining the lining of a furnace shell (1) comprising a bottom and a side wall and supported by a floor (2). The shell (1) is composed of two parts adapted to be separated and constituting respectively a bottom (11) and a co...
07/05/1988
4737315Method of treating radioactive organic wastes
Radioactive organic wastes, such as granular or powdered ion exchange resins and organic filter aids, are treated by oxidation decomposition using hydrogen peroxide in the presence of iron ions in an aqueous medium under refluxing an effluent which is con...
04/12/1988
4726764Heat treating apparatus and method of operating heat treating apparatus
A heat treating apparatus which comprises a core tube for containing a material to be treated, a heating furnace surrounding the core tube, core tube gas supply means for supplying gas into the core tube, furnace gas supply means for supplying gas into a ...
02/23/1988
4681616Glass sheet tempering method and furnace
A glass sheet tempering method and system (10) disclosed utilizes a heating chamber (22) and a quenching chamber (26) which contain ambients at superatmospheric pressure during both the heating and quenching. Forced convection heating is preferably perfor...
07/21/1987
4678432Heat treatment method
A heat treatment method in which a heating furnace is preliminarily heated before carrying an object to be heat-treated in the furnace and an unit heating process is repeated at least twice according to an output program for controlling an output of a hea...
07/07/1987
4666402Method and apparatus for preheating scrap in a bucket
A method and a device for scrap preheating by means of hot steel furnace exhaust gases. A scrap bucket permits passage of gaseous medium therethrough and is closed by a cover with an exterior waterseal by providing an intermediate annular space having a c...
05/19/1987
4627815Ceramic temperature stabilization body, and method of making same
The temperature stabilization body is made of pulverized aluminum nitride with a first additive of pulverized aluminum present between 0.05% to 2%, and a grain size of under 1 micrometer, and a second additive of from 0.1% to 10% of an oxide, preferably y...
12/09/1986
4596526Batch coil annealing furnace and method
An apparatus for heat treating a work item includes a cover member and a base member on which the cover member is supported. A work space is defined between the base member and the cover member for receiving at least one work item which is positioned ther...
06/24/1986
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