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| Number | Title | Issue Date |
| 7052552 | Gas chemistry cycling to achieve high aspect ratio gapfill with HDP-CVD A method and apparatus are disclosed for depositing a dielectric film in a gap having an aspect ratio at least as large as 6:1. By cycling the gas chemistry of a high-density-plasma chemical-vapor-deposition system between deposition and etching conditions, the gap ... | 05/30/2006 |
| 7011733 | Method and apparatus for depositing films In a sputtering apparatus, target particles to be deposited onto a substrate are selectively ionized relative to other particles in the deposition chamber. For example, titanium or titanium-containing target particles are selectively ionized, while inert particles, ... | 03/14/2006 |
| 6994037 | Rabble arm for a furnace A rabble arm for a furnace includes an elongated metallic support core, at least one rabble tooth having a rabble portion and a fixing portion and a fixing device co-operating with the fixing portion for fixing the rabble tooth to the elongated metallic support core... | 02/07/2006 |
| 6978726 | Combustion with reduced carbon in the ash Combustion of coal in which oxygen is injected into the coal as it emerges from burner produces ash having reduced amounts of carbon. ... | 12/27/2005 |
| 6146461 | Chemical vapor deposition apparatus having a gas diffusing nozzle designed to diffuse gas equally at all levels A chemical vapor deposition apparatus includes a processing chamber formed by an external tube, and an internal tube installed inside the external tube, a wafer boat securable within the processing chamber, and a single gas diffusing nozzle extending vert... | 11/14/2000 |
| 6082442 | Apparatus for removal and cooling of ash from the bed of a fluidized bed furnace A floor (2) of the device communicates with one or more ash-extraction pipes (3) associated with a semi-cooled conveyor. The conveyor is a drag conveyor (5) that travels over a semi-cooled floor (12) inside a housing (4). Several such semi-cooled floors a... | 07/04/2000 |
| 5895216 | Carrying device for supporting a charge in a re-heating furnace A carrying device for supporting a charge in a reheating furnace is disclosed. The carrying device has several tubular supports through which coolant flows, said tubular supports being provided with high-temperature-resistant riders. Each rider has a top ... | 04/20/1999 |
| 5535236 | Preheating device The invention relates to an electrically operated preheater for dry material for the manufacture of green carbon-containing masses. The invention includes a preheater having a silo housing, a core, a top and a bottom electrode, a concentric feed pipe, an ... | 07/09/1996 |
| 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 surface to support said charge running off center in the longi... | 04/11/1995 |
| 5322434 | Cooler grate In this cooler grate according to the invention the supporting surfaces of the grate plates fixed on grate plate supports are provided with cooling gas openings which open upwards and are constructed in the form of substantially endless annular gaps, so t... | 06/21/1994 |
| 5257928 | Rider for furnace support A rider for use with lengthwise generally horizontal supports in a furnace is formed from an anchor block and a cover block and a locking means. The anchor block is secured to the lengthwise generally horizontal support surface. The cover block fits verti... | 11/02/1993 |
| 5252063 | Cooling device for the distribution chute of an installation for charging a shaft furnace A device is proposed for cooling the distribution chute of an installation for charging a shaft furnace. This installation comprises a feed channel, a rotary collar and a rotary cage, a fixed outer housing, a distribution chute mounted in a pivoting manne... | 10/12/1993 |
| 5211557 | Heating furnace A heating furnace for e.g. a hot rolling process of any object is disclosed. The furnace has a heat-resistant conveyer device for conveying a treatment object in a high-temperature atmosphere inside the furnace. The conveyer device includes an elongate co... | 05/18/1993 |
| 5136610 | System for carrying a charge in a reheating furnace The system comprises at least one coolant-carrying tubular support carrying at least one rider. The latter consists of a heat-resistant cast housing provided with at least one cutout into which a ceramic carrier is inserted. The carrier is of sufficient c... | 08/04/1992 |
| 4900248 | Skid rail Disclosed is an improved skid rail used in furnaces, particularly, the furnaces for heating steel pieces for hot processing. The skid rail uses, as the material of the skid members thereof, an oxide-dispersion reinforced type super alloy which comprises c... | 02/13/1990 |
| 4886450 | Cooled tubular assembly for industrial reheating furnace Steel charges are heated to rolling temperature in reheating furnaces. It is standard practice for the charge to be moved through such a furnace on continuous water-cooled tubular supports crossing the furnace in a straight line. The supports obstruct cha... | 12/12/1989 |
| 4834650 | Sealed rotary hearth furnace with central bearing support The furnace has a hearth which rotates inside a stationary closed chamber and is supported therein on vertical cylindrical conduit which extends through the furnace floor and is supported by a single center bearing. The charge is deposited through the fur... | 05/30/1989 |
| 4747775 | Skid beam for heating furnaces of walking beam type A skid beam for use in a walking beam type heating furnace which has operating temperature exceeding 1000° C. comprises a hollow skid pipe of heat resistant alloy, skid buttons provided upright on the skid pipe and arranged axially thereof at a predeterm... | 05/31/1988 |
| 4689009 | Skid system for carrying a furnace charge A skid system for carrying a charge in a pusher or walking-beam furnace incorporating a cooled skid pipe 3 and at least one rider 1 fitted on the skid pipe for carrying the charge in the furnace is, for permanent and effective insulation of the cooled ski... | 08/25/1987 |
| 4604056 | Vacuum furnace system hearth The present hearth is composed of a plurality of support bars, which are made of graphite in the preferred embodiment, and which are arranged to be parallel to the length of the hot zone chamber and orthogonal to the mouth of the vacuum furnace. Each of t... | 08/05/1986 |
| 4486138 | Pusher ram The invention comprises a plurality of improvements in pusher ram construction for use in coke ovens and the like. These improvements include: (1) two separate "heat spring" arrangements for absorbing both heat and mechanically induced stress in the web p... | 12/04/1984 |
| 4407489 | Apparatus for discharging hot flowable solids from an upright container, particularly for discharging sponge iron from a shaft furnace A discharge implement is provided, which is operable to discharge sponge iron from a shaft furnace and constitutes the bottom structure of the shaft furnace and is formed with flow passages for a cooling liquid. In order to ensure a uniform discharge, the... | 10/04/1983 |
| 4391587 | Slab heating furnace In a slab heating furnace of walking beam- or pusher-type, particularly for the heating of steel prior to the hot working of the steel, skid beams are supported by water-cooled posts. In order to reduce the number of the water-cooled posts from that in th... | 07/05/1983 |
| 4373891 | Apparatus for cooling a transfer mandrel An apparatus for cooling a transfer mandrel on whose top portion a thermoplastic resin parison is mounted and which is rotatably engaged with the peripheral portion of a rotary table. The apparatus is arranged along the peripheral portion of the rotary ta... | 02/15/1983 |
| 4325478 | Transport belt intended for transporting products at a high temperature, and a transport means equipped with this belt A transport belt for a conveyor or bucket conveyor especially for transporting products whose temperature exceeds 200° C. is provided wherein a flexible belt carries on its outer face a metal carrier means adapted to receive or pick up the hot products w... | 04/20/1982 |
| 4318562 | Grasping apparatus for handling heated articles Apparatus for removing and installing hot refractory bricks, particularly in the checkerwork structures of the regenerators employed in glass melting furnaces, the apparatus having a manually operable, selectively actuatable claw mechanism mounted on one ... | 03/09/1982 |
| 4293299 | Load support device for heat furnaces A load support device for supporting metal slabs as they are moved through a heat furnace having therein a plurality of pipe beams through which a coolant is continuously circulated. The load support device consists of a saddle member mountable on the pip... | 10/06/1981 |
| 4290752 | Walking beam furnace Walking beam assemblies used to advance workpieces in a reheat furnace include upper and lower runs of coolant pipes spaced and joined together by web plates to extend along each of the opposite lateral sides of a body of refractory that contacts the work... | 09/22/1981 |
| 4288194 | Raw material distributing apparatus for a furnace An apparatus for distributing charged raw material into a furnace, wherein an armer rod having a distributing plate for the charged material is arranged on bearings to be slidable toward the furnace, and wherein a novel dust sealing mechanism and a coolin... | 09/08/1981 |
| 4256453 | Calciner screw construction In a calciner of the type having a screw conveyor for advancing material to and through a calcining reaction zone, and wherein the screw conveyor comprises an internally cooled support shaft which is provided within an outer screw flight shaft, an improve... | 03/17/1981 |
| 4252494 | Apparatus for supporting a conditioning tool within a furnace An elongated boom for supporting a tool for conditioning metal or the like within a high temperature furnace. The boom has internal passageway for directing cooling air therethrough so as to reduce the potentially dangerous effects of high temperatures up... | 02/24/1981 |
| 4245983 | Screw conveyor for feeding lime sludge or cement to a lime and cement kiln, respectively The invention relates to a feed conveyor for lime sludge to a lime kiln and, respectively, of cement to a cement kiln. The conveyor, which has the form of a screw conveyor, is characterized in that its housing is cooled by a cooling liquid so that a conde... | 01/20/1981 |
| 4217097 | Venturi-type workpiece-support nozzle A furnace workpiece-support system has at least one horizontal workpiece-support tube through which a fluid coolant is circulated and at least one vertical support post or tube connected at its upper end at a joint to the horizontal tube and having a blin... | 08/12/1980 |
| 4215981 | Heating or combustion apparatus and method Furnace apparatus and method used to heat or incinerate materials which are being stirred or rabbled under atmospheres of corrosive gases, and which employs a new material of construction for fabricating rabble teeth to impart improved resistance to mecha... | 08/05/1980 |
| 4158541 | Apparatus for calcining green coke A hollow, high-temperature alloy pipe with motive means to move air there through is employed as a support structure for supporting the feed pipe in a conventional coke-calcining apparatus. The support pipe is horseshoe shaped, and the feed pipe is receiv... | 06/19/1979 |
| 4102637 | Work support for vacuum electric furnaces A work support for vacuum electric furnaces is disclosed which supports a work piece in flat condition within close tolerances and which includes a plurality of spaced vertical pins with a heat sink through which the pins extend, the support being removab... | 07/25/1978 |
| 4067462 | Coke oven pushing and charging machine and method A combined coke oven pushing and charging machine is supported on tracks for movement along the front of a bank of coke ovens and is operable to open an oven door, push the coke from the open oven, and close the oven door, and to open the door of an adjac... | 01/10/1978 |
| 4056351 | Workpiece-engaging element for furnaces A furnace for the heat treating of workpieces includes an elongated internally-cooled supporting member which supports workpieces which are to be advanced through the furnace and a plurality of workpiece-engaging elements, each having a lower portion moun... | 11/01/1977 |
| 4056350 | Support rail arrangement A furnace for heat treating of workpieces includes a workpiece-engaging member mounted on an elongated, internally cooled supporting member for supporting workpieces from below which are to be advanced through and heat treated in the furnace. A ceramic ma... | 11/01/1977 |
| 3996032 | Insulated heater tray for making glass fibers and method for using same An improved method and apparatus for forming chopped glass fiber strands is disclosed. The improvement comprises a vibratory conveyor under a drying apparatus for said glass fiber strands which is insulated such that cold spots do not develop on the tray ... | 12/07/1976 |
