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| Number | Title | Issue Date |
| 7427375 | Diffuser for an annealing furnace A diffuser (24) for an annealing furnace has a plurality of radially extending generally and vertically oriented vanes (40) for radially directing furnace gases. The vanes have top edges (42) defining a generally planar support and the top edges... | 09/23/2008 |
| 7290405 | Method and apparatus for conducting heat to a glass sheet Method for transferring heat onto a glass in the furnace meant for heat treatment of glass, into which glass is transferred on a path of rollers, furnace heated by resistors (5) located inside of the furnace, the radiation heat directed onto the glass and con... | 11/06/2007 |
| 7204751 | Method and apparatus for filtering contaminants A self-contained ventilator includes a housing having a support member for supporting a pollution source. A filter is further disposed in the housing for filtering contaminants emitted from the pollution source. A conduit is adapted to connect to the housing to prov... | 04/17/2007 |
| 7196297 | Process and system for thermally uniform materials processing The present invention provides a system and method for binder removal and sintering of materials such as ceramic materials and products, LTCC intervals, solid oxide fuel cells and powder metals. A combination of microwave and convection/radiation heating is employed... | 03/27/2007 |
| 7011510 | Hot isostatic pressing apparatus and hot isostatic pressing method A hot isostatic pressing apparatus (HIP apparatus) comprises a vertically cylindrical high-pressure vessel comprising a high-pressure cylinder 1 and upper and lower lids 2 and 3; a bottomed cylindrical casing 6 capable of housing workpiec... | 03/14/2006 |
| 7008210 | Hot isostatic pressing apparatus A treatment chamber for heating and pressing workpieces and a heat insulating structure which covers the treatment chamber sideways and from above are provided within a high-pressure vessel. Below the treatment chamber are disposed a base heater for heating a pressu... | 03/07/2006 |
| 6979130 | Bearing device The aim of the invention is to improve a bearing device for rotatably receiving a control element (2) in lines which guide mediums and pertain to a combustion engine with bearing receptacles (10, 11), in such a way that the assembly thereof is simplifi... | 12/27/2005 |
| 6902377 | High performance axial fan A fan impeller is part of a fan assembly designed to maximize both intake and expelled air during use. The fan impeller employs a distinct airfoil shape for the fan blades to substantially move the ambient air. A low constant blade angle and overlapping blades are e... | 06/07/2005 |
| 6767206 | Arrangement and method for heating gas in a gas duct in connection with continuously operated sintering The invention relates to an arrangement and method for heating gases in a gas circulation duct in connection with continuously operated sintering. In the sintering furnace, hot gas is fed in from above the belt in order to sinter the material located on the belt, an... | 07/27/2004 |
| 6718965 | Gas “true” convection bake oven Disclosed is a convection oven capable of producing a “true” convection cooking environment with a single gas burner disposed underneath the oven bottom in a combustion box. A fan compartment is disposed substantially at the center of the back wall, and defined ... | 04/13/2004 |
| 6715662 | Waste energy recovery system for a controlled atmosphere system A continuous controlled atmosphere brazing system includes a dry-off oven for driving off moisture from materials to be brazed, a pre-heat section for pre-heating the material and a brazing furnace for brazing the materials. Heated gas produced in the pre-heat secti... | 04/06/2004 |
| 6648946 | Process for recovering helium using an eductor This invention is directed to a process for recovering helium. The process includes a) passing a first gas containing helium to an eductor to produce a second gas; b) passing the second gas through a heat exchanger to produce a third gas; and c) recoverin... | 11/18/2003 |
| 6609907 | Apparatus and method to control emissions of nitrogen oxide A combustion apparatus and process for improved flue gas recirculation wherein the recirculation line penetrates into an exhaust duct, such as the exhaust stack for capturing and directing a portion of said flue gas through the recirculation line which is... | 08/26/2003 |
| 6530778 | Condensation oven for heat treating a workpiece A condensation oven arranged to treat a workpiece including a casing having an internal structure defining a hermetic enclosure accessible via at least one door, a heater device operable to heat the internal structure to a predetermined temperature to ena... | 03/11/2003 |
| 6514066 | Device for hot isostatic pressing A device in hot isostatic pressing has first, second and third pumps. The first pump is adapted to pump a cooled pressure medium emanating from a cooling loop in the pressure vessel upwardly from a first space to a second pump which is arranged in a secon... | 02/04/2003 |
| 6511300 | Impeller for axial flow type blower An impeller arrangement in which adjacent blades (ventilating surfaces) are overlapped with each other as viewed in the axial direction is realized easily and cost-effectively even in a synthetic-resin-molded product. In an impeller for an axial flow type... | 01/28/2003 |
| 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 defined between the elongate boundary wall and an outer c... | 12/11/2001 |
| 6311685 | Heat exchanger for ovens for food cooking The heat exchanger is particularly for ovens for food cooking comprising a radial fan, and is associated with a burner supplied by a blower. The heat exchanger has a first part of pipe into which the combustion gases are made to flow, which makes an almos... | 11/06/2001 |
| 6250907 | Device for hot-isostatic pressing of parts A method of treating parts (34) in a treatment chamber (33) by hot-isostatic pressing with an inert gas as pressure medium and in the presence of a purifying agent (25a) for the inert gas comprises the steps of reducing the pressure in the treatment chamb... | 06/26/2001 |
| 6138660 | Forced convective track oven having oval spirals A forced convective track oven comprises a track conveyor including first and second circular spirals, the first circular spiral for conveying bakery trays and dough products upwardly and the second circular spiral portion for conveying bakery trays and d... | 10/31/2000 |
| 6065463 | Forced convective track oven A forced convective track oven comprises a track conveyor including first and second cylindrical spirals, the first cylindrical spiral for conveying bakery trays and dough products upwardly and the second spiral spiral portion for conveying bakery trays a... | 05/23/2000 |
| 5951281 | Gas flow circulation type tubular heating equipment The present invention relates to a gas recirculating tubular heating equipment which improves the heat transfer performance, reduces a heat transfer area to approximately 1/2 or under of that of a prior art and is not limited to a certain type of availabl... | 09/14/1999 |
| 5795146 | Furnace chamber having eductor to enhance thermal processing A furnace for thermally processing product includes one or more eductors. The eductor provides for increased circulation of atmosphere within the furnace for heat transfer or outgassing purposes. The eductor may be used to introduce clean gas to a product... | 08/18/1998 |
| 5772429 | Portable oven for heating of tiles A portable oven for simultaneous preparation of multiple floor tiles, providing an efficient means to heat the tiles so they are soft and can be cut to fit the area to be tiled, and preferably providing means to measure and cut the heated tiles.... | 06/30/1998 |
| 5744029 | Gas chromatography oven A chromatography oven is described to achieve faster cool-down rates and to preferably lower the temperature difference that can be maintained between the oven temperature and ambient temperature. The oven includes a suitable housing having front and rear... | 04/28/1998 |
| 5683242 | Oven with temperature balancing An oven for electronics manufacturing including a heated chamber having openings at each end to the ambient environment wherein heated air is circulated by a centrally located fan to pass over workpieces in a substantially upward (or downward) flow. Equal... | 11/04/1997 |
| 5601070 | Convection oven A convection oven having an insulated oven chamber bounded by a front access door, a floor, a ceiling, two side walls, and a rear wall. An inlet air passageway, which includes a heating element, delivers heated air to the oven chamber, and an exhaust pass... | 02/11/1997 |
| 5568803 | Relating to gaseous fuel burner assemblies and to appliances incorporating such burner assemblies A gaseous fuel burner assembly for heating a space particularly an oven of a domestic cooking appliance comprises a gaseous fuel burner separated from the space by a baffle plate, and, also separated from the space by the baffle plate, a fan for withdrawi... | 10/29/1996 |
| 5222474 | Convection cooking oven with enhanced temperature distribution uniformity A gas fired convection cooking oven is provided with an improved air delivery and heat exchange structure for creating within the oven's cooking chamber a recirculating flow of heated air to cook food items supported therein. The structure includes a comb... | 06/29/1993 |
| 5165889 | Gas convection oven with heat exchanger and baffles A convection oven comprises a heating compartment, a burner for effecting combustion of gas, a heat exchanger for conducting therethrough the products of combustion of gas initiated at the burner, first and second blowers for blowing air past the heat exc... | 11/24/1992 |
| 5123832 | Hot isostatic press The invention relates to a device for cooling of the furnace chamber (4) in a hot isostatic press by means of devices (7, 8) for circulation of a coolant in the furnace chamber (4), the coolant having a temperature which is lower, but not considerably low... | 06/23/1992 |
| 5121737 | Convection cooking oven with enhanced temperature distribution uniformity A gas fired convection cooking oven is provided with an improved air delivery and heat exchange structure for creating within the oven's cooking chamber a recirculating flow of heated air to cook food items supported therein. The structure includes a comb... | 06/16/1992 |
| 5035610 | Internal heat exchange tubes for inductrial furnaces An internal heat exchange tube for cooling work within an industrial furnace is positioned to extend within the furnace and is closed at its axial end which is inside the furnace. Within the tube is an open ended, thin wall inner tube formed in the shape ... | 07/30/1991 |
| 4974663 | Cross-circulating method and apparatus for autoclave A method for circulating a gas in an autoclave which comprises a pressure container (A) having a wind tunnel (7) in which moldable materials (1) are placed and the gas is circulated by a blow fan (33), the pressure container (A) being sealably closed by a... | 12/04/1990 |
| 4968121 | Hermetically sealed apparatus and method for maintaining crystals at a controlled operating temperature An apparatus for maintaining a crystal at a precisely controlled operating temperature over extended periods of time without significant thermal degradation of the crystal. The apparatus has thermally conducting walls. The walls define an inner hermetical... | 11/06/1990 |
| 4963091 | Method and apparatus for effecting convective heat transfer in a cylindrical, industrial heat treat furnace A low cost, improved convective heat transfer furnace is disclosed which includes a cylindrical casing to which is attached blanket insulation and the casing is closed at its ends to define a closed end cylindrical furnace enclosure. An annular fan face p... | 10/16/1990 |
| 4951648 | Conveyor oven Infrared (IR) strip heaters are juxtaposed with convection heaters for simultaneous, independently controlled, combined radiant/convective heating in a conveyor oven. Apertured plates with portions transmissive to IR radiation are interposed between a low... | 08/28/1990 |
| 4928663 | Enhanced air-flow convection oven An enhanced, air-flow convection oven is disclosed, comprising an oven chamber liner circumscribed by a thermally insulated outer oven shell with a heat source in a combustion chamber between the shell and the liner. Hot air flows from the combustion cham... | 05/29/1990 |
| 4927358 | Apparatus for producing honeycomb panels Apparatus for producing honeycomb panel comprising a heating chamber isolated by a wall from outer air and a plurality of drawout trays capable of being individually inserted into and withdrawn from the heating chamber through a plurality of openings form... | 05/22/1990 |
| 4906182 | Gas cooling system for processing furnace A cooling system for a processing furnace provides improved cooling efficiency in a more compact arrangement than known furnace cooling systems. In the system a blower is situated within the cooling gas plenum but has its intake exterior thereto. The plen... | 03/06/1990 |
