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| Number | Title | Issue Date |
| 7195479 | Hot liner insertion/removal fixture A fixture (30) adapted to permit the heated exchange of a liner (14) from an operating vertical furnace (10). The fixture is adapted to secure to the base of the liner (14) to both unlock and lower the heated liner, such as a silicon carb... | 03/27/2007 |
| 7178299 | Tiles with embedded locating rods for erosion resistant linings A tile for lining an internal surface in a heavy wear area. The tile includes at least one locating rod embedded within said tile and an internal mechanism for laterally extending said at least one locating rod out of said tile and into a gap in an adjoining structu... | 02/20/2007 |
| 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 heated gas. The heated gas comprises the air usually provided for co... | 05/02/2006 |
| 6846514 | Gas port sealing for CVD/CVI furnace hearth plates A method and apparatus for sealing gas ports in CVD/CVI furnaces and processes is disclosed. A fluid direction nozzle (160) is positioned between a top lip (101) of a gas inlet port (100) delivering a reactant gas (G) to a furnace compartment( | 01/25/2005 |
| 6619952 | Kiln with drop-down control panel A kiln has a control box pivotably coupled to an oven portion via a hinge at a lower end of the control box so that the control box can pivot about the hinge from a closed position adjacent the oven portion to an open position where an upper end of the co... | 09/16/2003 |
| 6045357 | Continuous sintering plant integrated with glove box for maintenance use A continuous sintering apparatus to be used for sintering nuclear fuel pellets includes a casing integrally constructed to have an upper portion enclosed in a maintenance glove box. The furnace casing includes a casing body and a ceiling cover removably m... | 04/04/2000 |
| 5951282 | Vertical heat treatment apparatus The vertical heat treatment apparatus for semiconductor wafers (W) includes a heat treatment furnace (19). In the heat treatment furnace (19), the wafers (W) are subjected to a batch treatment in a state mounted on a boat (16). To the lower side of the he... | 09/14/1999 |
| 5855639 | Process for the conversion of a glass furnace with the aid of a combustion with oxygen Provided is a process for the production of a loop-shaped flame in a glass furnace. The furnace includes, in a rear part, a glass melting zone heated by injecting through at least one port a fuel gas and an oxidizer gas having more than 50 vol % of oxygen... | 01/05/1999 |
| 5607296 | Method for repairing an interchangeable sintering furnace The refractory section of a sintering furnace for sintering mixed oxide nuclear fuel pellets is disposed between a pair of glove boxes. Extensions from the opposite ends in communication with the sintering channel project through glove ports in the glove ... | 03/04/1997 |
| 5605454 | Four port tube to extend the life of quartz tubes used for the well drive process A quartz tube with multiple thermocouple ports arranged along its radius allows for the quartz tube to be rotated while the thermocouple is always placed in the bottom position of the quartz tube. This avoids a problem of the sagging of the quartz tube. W... | 02/25/1997 |
| 5280495 | Furnace 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 |
| 5249959 | Device for the rapid repair of a blast-furnace plate A device repairs worn depressed surfaces around a tap hole opening in a blast furnace plate. The device includes a preformed frusto-conical member made of a refractory material that is flexible and rapidly baked. A ferrule is formed of frangible material ... | 10/05/1993 |
| 5188527 | Method of and system for cleaning the surface of furnace rollers of a roller hearth furnace A roller hearth furnace (1) is subdivided into detachably assembled sections (2). In order to clean the rollers, one of the sections (2) of the assembly is removed and replaced by a replacement section (7) previously heated to the furnace operating temper... | 02/23/1993 |
| 5122055 | Casing for kiln A casing for a kiln includes at least one casing unit comprising: vertical and horizontal frame members assembled according to the shape of a framework of the kiln; outer plates secured to at least one of the vertical and horziontal frame members for cove... | 06/16/1992 |
| 5092765 | Method and arrangement for hot repair of heating trains of coke oven battery A method of hot repair heating trains of a coke oven battery includes brick laying of a heating train, warming a finished portion of a respective heating train during the brick laying to a temperature of approximately 250° C., directly after ending the b... | 03/03/1992 |
| 5088921 | Heat treatment furnace An elongated, horizontal tunnel-type furnace for heat treating workpieces carried in succession therethrough. The furnace is of modular construction and comprises a series of contiguous individual modular sections that define a tunnel-type enclosure. Each... | 02/18/1992 |
| 4960379 | Process and apparatus for opening furnace tapholes To open a furnace taphole that is closed by a body of plugging material and a tapping rod the tapping rod is driven into the interior of the furnace. Because the tapping rod is driven in and not withdrawn, it is not necessary to provide a second hammer st... | 10/02/1990 |
| 4959012 | Apparatus for repairing brick/refractory in a process heater An apparatus for securing loose wall brick or refractory lining in process heaters eliminates the need for the assistance of personnel outside the heater. Also, the requirement for scaffolding outside the heater is eliminated. Brick or refractory lining o... | 09/25/1990 |
| 4957428 | Process for constructing furnaces with open chambers, for avoiding deformation thereof A process as disclosed for constructing a furnace for open chambers for baking carbonaceous blocks, comprising arranging a plurality of chambers in a series or in two parallel series, each chamber being defined by lateral partitions and transverse partiti... | 09/18/1990 |
| 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 |
| 4913649 | Repair of the refractory lining of the wall of a shaft furnace and a repaired shaft furnace In the repair of a refractory lining of a shaft furnace having a steel shell, a worn residual refractory lining inside the shell and cooling plates extending through the shell into the refractory lining, the worn lining is retained and an additional linin... | 04/03/1990 |
| 4905630 | Method and apparatus for renewing a vertically disposed steam generator, in particular in nuclear power plants A vertically disposed steam generator includes a pressure vessel containing: a tube plate, chambers, a bundle of U-shaped bent heating tubes with supporting anchors, a steam trap above the heating tubes, and tubes for a secondary medium discharging into t... | 03/06/1990 |
| 4880379 | Method for transforming a rotary kiln intended in particular for the manufacture of cement, kiln obtained by this method and burning line equipped with this kiln The present invention concerns a method for transforming a rotary kiln equipped with a planetary cooler and intended in particular for the manufacture of cement, a kiln obtained by this method and a burning line equipped with this kiln, the kiln being con... | 11/14/1989 |
| 4840559 | Seal arrangement for high temperature furnace applications A seal arrangement is disclosed for use in a furnance which utilizes a thin, cylindrical imperforate shell member which is heated from an external source to heat work placed within the shell. An insulated arrangement within and outside of the shell extend... | 06/20/1989 |
| 4764108 | Modular oven An oven construction in which an elongated oven assembly is provided by manufacturing a plurality of oven modules at a factory location and then shipping the modules to the usage site where they are assembled together in end-to-end fashion to form the fin... | 08/16/1988 |
| 4755137 | Process 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 |
| 4752214 | Oven wall straightener An oven wall straightener and a method for straightening an oven wall are disclosed. An angled beam (30) is mounted in such a way that rapid heat transfer from the oven wall (10) to the vertex (35) of the angled beam (30) causes the angled beam (30) to bo... | 06/21/1988 |
| 4538986 | Means for supporting the material under treatment in continuous-action heat treatment furnaces The invention concerns a means for supporting the material being treated in continuous-action heat treatment furnaces. The support means consists of a cooled roller (5), on the periphery of which at least two cooled rollers (7) with substantially smaller ... | 09/03/1985 |
| 4536153 | Refractory shelf for home hobbyist kiln and method of making kiln Disclosed is an improved hobbyist kiln containing one or more shelves each of which is constructed so as to have a hole located at about its geometric center. Additionally, the outside dimensions of the shelf are such that, on placing the shelf in the kil... | 08/20/1985 |
| 4535727 | Heat exchanger with adjustable platform for cleaning and repairing The synthesis gas cooler is provided with a movable platform in the space between the inner and outer flue. The platform may be constructed in segments with separate cable and winch means provided for raising and lowering of the platform segments via susp... | 08/20/1985 |
| 4534730 | Method of and apparatus for forming a liner in a furnace or other vessel A method of and an apparatus for forming a liner in an induction furnace is disclosed. The apparatus includes a hopper for storing particulate refractory material and a plurality of material delivery tubes communicating with the hopper and extending into ... | 08/13/1985 |
| 4533319 | Method of and apparatus for monitoring a rotary kiln assembly A problem that can occur with a large rotary kiln assembly is that it can move out of position or seals can become defective, making an escape of materials possible. The present invention provides transducers (10, 15) for detecting movement of the rotary ... | 08/06/1985 |
| 4518350 | Apparatus and method for calcining sand A sand calciner system (10) includes a refractory lined drum (12) mounted for oscillation about its longitudinal axis (14). An arrangement of plows (76) are provided along the bottom inside of the drum (12) for mixing the sand received through an inlet (5... | 05/21/1985 |
| 4486173 | High-temperature, high-pressure workpiece treatment system To permit installation of various sizes of deburring chambers, matched to particular sizes, or combination of sizes of workpieces, so that only the minimum size chamber for the particular quantity or size of workpiece need be used, the chambers are provid... | 12/04/1984 |
| 4479778 | Construction of regenerator furnaces The present invention is directed to a regenerator furnace which is useful in making glass, the regenerator furnace including burner pipes, each burner pipe having a generally square or rectangular cross section, the upper part or cover of each pipe being... | 10/30/1984 |
| 4477250 | Asphalt recycle plant and method An asphalt recycling system and process are incorporated into an existing batch type asphalt plant. The existing asphalt plant has an aggregate dryer and air discharge ducts connected to a filtering system. A recycling dryer has input ducts connected to t... | 10/16/1984 |
| 4466792 | Walking beam furnace The invention relates to a walking beam furnace wherein the walking beams can be lowered beyond their operative stroke to a maintenance position. The actuating device for the walking beams comprises a hydraulic, pneumatic or electric assembly (10) and a w... | 08/21/1984 |
| 4428730 | Insulation for a furnace member An improved insulation is provided for furnace members, particularly verticals, cross supports and skid pipes in slab reheating furnaces. The insulation includes a metal spring-clip having outward projections on which refractory tiles are formed. An inter... | 01/31/1984 |
| 4379691 | Olivine bedding material for soaking pits A method of operating "wet bottom" practice soaking pits to prolong useful period between bed replacement. Olivine is used to replace coke breeze in the bottom of the soaking pit to protect its refractory lining. Operating periods from 40-60 days are possible ... | 04/12/1983 |
| 4375956 | Hot blast stove arrangement for a blast furnace In a support construction for a hot blast main which is connected by respective branches to the outlets of a plurality of hot blast stoves of a blast furnace, the main is suspended on each stove by means of a rod system secured to a stiffened transitional... | 03/08/1983 |
