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| Number | Title | Issue Date |
| 7216464 | Modular oven wall panel assembly A modular oven, such as a batch process oven, includes a standardized set of self supporting, interconnectable panels which, when assembled, from a self-supporting heat containment shell, free of added structural support members. The present invention is also direct... | 05/15/2007 |
| 7192271 | Method and cooling device for the subracks in a chamber furnace The invention relates to a ring furnace pit (2) cooling method, comprising the production of a flux F of cooling fluid inside the pit (2) and the flow of at least a part Fr of said flux F in a roughly vertical manner along determined surfaces of the wa... | 03/20/2007 |
| 7104789 | Wall structure for carbon baking furnace A carbon baking furnace having spaced-apart, hollow flue walls defining a soaking pit therebetween. Each of the flue walls is formed of refractory bricks and has a pit face facing the pit and a flue face facing an inner flue gas passage. A coating is provided on the... | 09/12/2006 |
| 7086856 | Carbon baking furnace A carbon baking furnace comprising a refractory lined kiln defining a baking path, further comprising a means for substantially continuously receiving green carbon articles, means for packing said green carbon articles in a sacrificial medium, a means for substantia... | 08/08/2006 |
| 6905332 | Modular oven, panel assembly and method of assembling the same A modular oven, such as a batch process oven, having a standardized set of self supporting, interconnectable panels which, when assembled, from a self-supporting heat containment shell, free of added structural support members. Also described are the self-supporting... | 06/14/2005 |
| 6655955 | Coolable arched roof A coolable arched roof for a high-temperature melting furnace having a furnace interior. At least the following layers are present on that side of a layer of refractory bricks, which is remote from the furnace interior: a sealing layer, which is used to s... | 12/02/2003 |
| 6418755 | Glass melting apparatus and method including exhausting the furnace atmosphere by removal of a heating element A system for melting and delivering glass to a work area such as spinners for making fiberglass includes a melter with heaters so arranged that the "hot spot" in the molten glass is located away from the walls and corrosion sensitive parts so that the var... | 07/16/2002 |
| 6217319 | Semiconductor manufacturing device and method of processing wafer A hot plate unit includes a cover. The cover includes an inner wall and an outlet. There is provided immediately under the outlet a plate having a ventilation hole. The distance between the plate and a main surface is identical to the distance between the... | 04/17/2001 |
| 6027339 | Ring furnace with central tubular flow The furnace for baking carbonaceous blocks comprises, along the longitudinal X direction of the furnace, a series of sections, each section comprising, in the transverse Y direction, hollow walls (3) through which a heating gas flow comprising combustion ... | 02/22/2000 |
| 6004130 | Flue seal for a carbon anode baking furnace A device for sealing a passageway in a flue from a carbon anode baking furnace, the flue being generally rectangular in shape and comprising a flue top and bottom, a headwall on either end of the flue, two walls, an opening in the flue top, at least one b... | 12/21/1999 |
| 5779970 | Convection cooking oven with a cooled interior The invention concerns a baking ring furnace characterized by the fact that the two parallel rows of cooking chambers are separated by a unique central wall or interior film or space which is capable of being specifically cooled and made firmly attached t... | 07/14/1998 |
| 5759027 | Device for a ring section furnace A ring section furnace for the calcination of carbon bodies, has a number of chambers (K1-Kn) in which the carbon bodies are placed when performing the calcination process. During the calcination process, a part of the furnace comprising a minor number of... | 06/02/1998 |
| 5704781 | Refractory wall brick for a heating channel of a ring pit furnace The invention relates to a cuboidal, fireproof wall brick for a heating channel of an open round-chamber kiln, having two horizontally extending setting surfaces, two vertically extending setting surfaces and two front surfaces, characterized by at least ... | 01/06/1998 |
| 5676540 | Flue walls using interlocking bricks A refractory brick and system of bricks for constructing flue walls of a ring furnace. The brick and the bricks of the system have opposed sides and upper and lower surfaces when disposed in a vertical wall structure, with one of the surfaces having at le... | 10/14/1997 |
| 5473628 | Device for ring section furnace A ring section furnace device for the calcination of carbon bodies includes a number of serially connected chambers with or without lids on top. Each chamber contains a number of cassettes the walls of which have therein vertical and/or horizontal flue ga... | 12/05/1995 |
| 5466150 | Sagger wall for a ring pit furnace The invention relates to a partition wall, made up of a multiplicity of segments intended for a multi-compartment furnace as used for firing graphite electrodes, for instance. The invention calls for expansion joints to be incorporated between the segment... | 11/14/1995 |
| 5078595 | Carbon flue wall and method of making A flue wall, and method for making same, adapted to be readily assembly with like walls and other components to form a battery of heated comparments in a pit in which carbon anodes, such as used in the manufacture of alumina are baked. The wall includes u... | 01/07/1992 |
| 4944672 | Method for renovating ring chamber furnaces A method for the renovation of a ring section furnace having several sections connected in series, each section comprising a plurality of parallel pits. A complete renovation/maintenance of the furnace is accomplished according to a continuous program whe... | 07/31/1990 |
| 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 comprising a plurality of preheating, baking and cooling ch... | 08/22/1989 |
| 4842511 | Carbon baking furnace--refractory construction A ring furnace having pits arranged in rows and sections with individual headwalls between adjacent pits in each row and flue sections separating adjacent pits in each section with the flue sections meeting end-to-end to provide a continuous flue on each ... | 06/27/1989 |
| 4764109 | Heat treating, curing or stress relieving furnace An oven for heat treating, curing, stress relieving or otherwise treating objects within the oven has side walls that can be moved into contact and out of contact with side edges of a movable floor. All interior surfaces of the oven are insulated and, whe... | 08/16/1988 |
| 4744749 | Pipes having orientable nipples for furnaces for firing carbonaceous blocks The invention concerns an improvement in a suction or blowing pipe for a furnace having partition chambers intended for the firing of carbonaceous blocks. The pipe comprises a main body (3) provided with a plurality of nozzles (10) to which tubular nipple... | 05/17/1988 |
| 4687439 | Furnaces for baking anodes An improved exhaust port plug is provided for use in a baking furnace for the baking of anodes for use in an electrolytic reduction cell. The improved exhaust port plug comprises a cylindrical metal shell having a diameter approximating the diameter of th... | 08/18/1987 |
| 4676742 | Preheater for reverberatory melting furnaces An improved preheater is provided suitable for use with gas or oil fired reverberatory melting furnaces for recycling aluminum scrap and other scrap metals. The improved preheater comprises a charge box having a bottom, and a chamber having a bed. The cha... | 06/30/1987 |
| 4636169 | Unit for regenerating the heat produced by exhaust gases in movable hearth furnaces used for baking or rebaking carbonaceous materials A unit for regenerating the heat produced by exhaust gases in movable hearth baking furnaces not altering the operating conditions of the furnace and not causing any damage thereto, either obtaining steam or heating at high temperature diathermic oil to b... | 01/13/1987 |
| 4568272 | Method of operating an open ring-type furnace The operation of an open ring-type baking furnace for the production of shaped carbonaceous bodies and having at least partly grouped fire shafts is such that during the fire reversal phase the negative pressure is regulated in each fire shaft in the tran... | 02/04/1986 |
| 4552530 | Ring section baking furnace and procedure for operating same A ring section baking furnace for the indirect heating of shaped bodies or particulate material, particularly for calcination, includes vertical ducts, or channels, in pit walls arranged in groups by means of partition walls under the bottom of the pits. ... | 11/12/1985 |
| 4530659 | Temperature measurement technique A method of determining the penetration of an isotherm into a mass, including the steps of distributing material in the mass, the material having the ability to fix a record of an isotherm, cycling the temperature of the mass, and checking the material fo... | 07/23/1985 |
| 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 (7, 19, 25) which divide the chambers into compartments. Th... | 03/12/1985 |
| 4382778 | Method and apparatus for reducing excess air inleakage into an open ring-type carbon baking furnace A method for reducing excessive air inleakage and fuel consumption in open ring-type carbon baking furnaces is disclosed. This method consists in covering the preheat sections of the fire with covers. Each cover is preferably mounted on legs and a flexibl... | 05/10/1983 |
| 4371333 | Device and process for operating an open baking furnace for manufacturing carbon-bearing, shaped bodies Device and process for operation of open baking furnaces, in particular such ring-type furnaces for manufacturing anodes for the aluminum electrolytic process, are such that for each so called fire the sealing chamber and/or chamber in the cooling zone ca... | 02/01/1983 |
| 4284404 | Continuous ring baking furnaces of the Hoffmann type An automatic control system for a continuous ring furnace, wherein the chambers and groups of chambers are operated successively in different phases of the baking cycle; the condition of certain chambers being monitored to obtain signals representing actu... | 08/18/1981 |
| 4269592 | Control of combustibility of volatile hydrocarbons and particulate matter in an exhaust gas stream by use of a high velocity burner in a carbon bake ring furnace The present invention relates to a method of and an apparatus for controlling the combustibility of volatile hydrocarbons and particulate matter in an exhaust gas stream driven off from a carbon product being baked in a furnace. In a prebaking stage, the ... | 05/26/1981 |
| 4253823 | Procedure and apparatus for baking carbon bodies In the baking of carbon anodes (for aluminum reduction cells) or the like, in so-called ring-type furnaces where green carbon bodies are deposited in pits, each of which is circumstanced successively for preheating stages, one or more baking stages, and c... | 03/03/1981 |
| 4215982 | Continuous ring furnaces for baking and rebaking carbon articles The invention provides improvements in continuous ring furnaces which have sequentially arranged and communicating chambers and which are used for baking and rebaking carbon articles, wherein a movable bridge member is employed to connect a common smoke c... | 08/05/1980 |
| 4202661 | Jet implement radiation furnace, method and apparatus A furnace for heat treating metal slabs or strips includes a heating chamber through which stock is passed in confronting relationship to an array of jet impingement radiation burners. Combustion is separated from the stock by flat refractory plates havin... | 05/13/1980 |
| 4131417 | Carbon electrode production A method including baking two carbon articles in a chamber, wherein the improvement comprises the steps of: A. providing a protrusion and a stub hole on a face of one of the articles and arranging the articles side by side in the chamber with said protrus... | 12/26/1978 |
| 4128394 | Tunnel kiln for use in rebaking carbonaceous moldings impregnated with tar, pitch or the like A tunnel kiln for use in rebaking carbonaceous moldings impregnated with tar, pitch or the like, consisting of a preheating zone, a baking zone and a cooling zone, which comprises providing arch shafts in the kiln ceiling, providing a plurality of gas rec... | 12/05/1978 |
| 4118875 | Method and means of drying particulate material A portable grain drying apparatus comprising a wheeled frame having a cylindrical housing mounted thereon and extending upwardly therefrom. The housing is provided with a perforated wall portion to permit the escape of air therethrough. An inverted conica... | 10/10/1978 |
| 4050880 | Method and apparatus of baking carbonaceous molding A method and apparatus for the continuous baking of preheating, burning and cooling of carbonaceous moldings, which comprises burning fuels at the side and bottom portions of saggers which are charged with breeze and carbonaceous moldings to be baked; mov... | 09/27/1977 |
