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| Number | Title | Issue Date |
| 7540993 | Continuous process for production of steel part with regions of different ductility The interior of a furnace is partitioned into two longitudinally extending and transversely adjacent zones, and one of the zones is heated to a substantially higher treatment temperature than the other of the zones, which may or may not be heated. A steel workpiece ... | 06/02/2009 |
| 7238543 | Methods for marking a bare semiconductor die including applying a tape having energy-markable properties A method used for marking a semiconductor wafer or device. The method and apparatus have particular application to wafers or devices which have been subjected to a thinning process, including backgrinding in particular. The present method comprises reducing the cros... | 07/03/2007 |
| 7094618 | Methods for marking a packaged semiconductor die including applying tape and subsequently marking the tape The present invention provides a method and apparatus for marking a semiconductor wafer or device. The method and apparatus have particular application to wafers or devices which have been subjected to a thinning process, including backgrinding in particular. The pr... | 08/22/2006 |
| 7018585 | Annealing apparatus An annealing apparatus includes a gas tight hollow main body, a conveying apparatus and a gas grid. A heating apparatus and a cooling apparatus are installed at an inlet and an outlet of the main body, respectively. The gas grid is installed between the inlet and th... | 03/28/2006 |
| 6904671 | Integrated circuit chip handling apparatus and method The present invention provides for an apparatus and method for handling integrated circuit (IC) chips such as thin small outline package (TSOP) IC chips. Embodiments of the invention are directed toward removal of TSOPs from device under test (DUT) boards. By use of... | 06/14/2005 |
| 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 |
| 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 |
| 6036793 | Method of heat treating oxygen-sensitive products The present invention provides a method of heat-treating an oxygen-sensitive workpiece to minimize any oxidation of the workpiece, as well as an improved door seal specially suited for use with oxygen-sensitive products. In the method, an oven has an oven... | 03/14/2000 |
| 5914088 | Apparatus for continuously annealing amorphous alloy cores with closed magnetic path An apparatus for continuously annealing amorphous metal alloy cores with a closed magnetic path consists of a tunnel furnace having a bus bar connected sequentially to a DC power source. Switching is provided to simultaneously close and open electrical co... | 06/22/1999 |
| 5816090 | Method for pneumatic isostatic processing of a workpiece A pneumatic isostatic forging process for densification of near net shape workpieces is disclosed. In the process, a workpiece is heated prior to the forging process, such as from a previous processing step. The workpiece is loaded into a pressure vessel.... | 10/06/1998 |
| 5226968 | Apparatus and method for oxidation treatment of metal A metal oxidation treatment apparatus to form the passivation film on the surface of the metal to be oxidized such as stainless steel or the like, comprising an oxidation furnace, a gas inlet to introduce gas into said oxidation furnace, a discharge outle... | 07/13/1993 |
| 5224998 | Apparatus for oxidation treatment of metal A metal oxidation treatment apparatus to form the passivation film on the surface of the metal to be oxidized such as stainless steel or the like, comprising an oxidation furnace, a gas inlet to introduce gas into said oxidation furnace, a discharge outle... | 07/06/1993 |
| 5112030 | Heat treat furnace for fluorinating steel material This invention relates to a method of nitriding steel material in a second heat treatment furnace after fluorinating the steel material in a first heat treat furnace to form a deep and uniform nitrided layer. Then, steel material is treated smoothly by de... | 05/12/1992 |
| 5104314 | Refractory hearth furnace floor arrangement for retaining an alloy chain and pusher assembly A refractory hearth for use in an industrial heat treat furnace is disclosed whereby the hearth contains no alloy parts with the exception of the pusher assembly and the roller chain attached to it. L-shaped ceramic, refractory or silicon carbide tile are... | 04/14/1992 |
| 4963090 | Reverse flow furnace/retort system Reversing the flow of conventional furnace/retort systems prevents damaging exhaust gases from entering the furnace while still maintaining a gas flow through the retort. The gases exit the retort into a treatment system; preventing contamination of any a... | 10/16/1990 |
| 4693863 | Process and apparatus to simultaneously consolidate and reduce metal powders A powder metallurgy consolidation process and apparatus for carrying out said process produces integral metal bodies by heating metal powder of a predetermined composition to a temperature sufficient to cause solid state interparticle bonding, while simul... | 09/15/1987 |
| 4604055 | Lip-hung retort furnace A fluidized bed furnace includes a furnace housing having an outer shell. A furnace base and an outer top plate are secured to the respective lower and upper ends of the housing. A vertical retort has an opened upper end and an opened lower end. The retor... | 08/05/1986 |
| 4497474 | Apparatus for sequentially annealing and then hardening long metal components made of fine or special steel A method of sequentially annealing and then hardening long metal components (1,2,3,4) made of fine or special steel with an austenitic structure, said method including at least one annealing operation by supplying heat from the outside in a reducing or ne... | 02/05/1985 |
| 4441699 | Apparatus for annealing of end rim A method of annealing the flanges of double seamed end panels to obtain an effective seal and apparatus therefor.... | 04/10/1984 |
| 4415145 | Metal charge treatment apparatus Apparatus for treating a metal charge comprises a box furnace and a container containing material for treating the charge. The box furnace is mounted on props whose length is sufficient to permit the container to be positioned under the furnace. The furna... | 11/15/1983 |
| 4402494 | Process of heat treating copper film on ceramic body and heat treating apparatus therefor A process for metallizing a copper film comprising the step of heat treating a copper film formed by an electroless plating process as opposing electrodes of a ceramic capacitor. The process comprises the steps of placing a ceramic body having a copper fi... | 09/06/1983 |
| 4355790 | Heat-treatment device for prolonging the life of a pressure vessel such as a reactor pressure vessel especially Heat-treating device for prolonging the life of a pressure vessel formed of thermally resistant material subject to time-dependent structural changes due to neutron fluence includes a heating device positionable within a pressure vessel adjacent to a wall... | 10/26/1982 |
| 4303228 | Apparatus for heat treating containing air-purged molecular sieves in O.sub. -free N2 atmospheres Carbonaceous combustion products (i.e., principally carbon dioxide) and water are removed from nitrogen generator gas by molecular sieve adsorption thereof. The molecular sieve material is regenerated by an initial extended purging with ambient air under ... | 12/01/1981 |
| 4245818 | Apparatus for heat treatment of material to be worked on, especially of aluminum or magnesium alloys Apparatus for heat treatment of metal pieces such as billets, ingots, bars and the like, by pre-heating using hot gas impingement in a pre-heating furnace, and then transference into a holding furnace using forced hot air circulation where the metal piece... | 01/20/1981 |
| 4232852 | Apparatus for control of the carburization of parts in a vacuum furnace An apparatus for the control of the carburizing of parts under vacuum in a acuum furnace, with which as a carbon carrier a hydrocarbon gas is introduced controlled in the furnace. A detector detects the occurrence of a soot mist formation. Upon the occurre... | 11/11/1980 |
| 4154433 | Continuous atmosphere controlled furnaces Disclosed is a continuous atmosphere controlled furnace for aluminum brazing and other purposes. A plurality of pots are suspended from a circular roof rotatable in a horizontal plane and arranged in a circle having a center on the axis of rotation of the... | 05/15/1979 |
| 4123044 | Tunnel furnace A tunnel furnace comprises an elongate hollow structure inclined to have one end higher than the other and is reciprocable about an axis parallel to its length, heaters for heating material to be treated being incorporated in the structure.... | 10/31/1978 |
| 3950192 | Continuous carburizing method An improved method for continuously carburizing low carbon cold rolled coil stock is disclosed. The carburized product is characterized by the absence of proeutectoid ferrite. The method comprises heating low carbon steel stock in the austenitizing range ... | 04/13/1976 |
