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| Number | Title | Issue Date |
| 8088328 | Vacuum nitriding furnace A heat treating furnace is disclosed for nitride case hardening and gas cooling a stationary workload in the same furnace which is comprised of a single chamber and an access door. The chamber is segregated into an outer portion and an inner portion, with the inner ... | 01/03/2012 |
| 7887746 | Rapid thermal treatment for coloring surgical needles An apparatus for thermally treating and coloring a plurality of curved suture needles. The apparatus includes a conveyer for transferring the plurality of curved suture needles from a source of curved suture needles to a receiver, a housing positioned adjacent the c... | 02/15/2011 |
| 7842230 | Continuous carburizing furnace A continuous carburizing furnace includes a furnace having a carburizing zone for performing a carburizing process on a workpiece while the workpiece is conveyed; and a plurality of regions disposed successively in a direction of conveyance upstream from the carburi... | 11/30/2010 |
| 7833471 | Carburizing apparatus and carburizing method A carburizing apparatus that can reduce cost and shorten the carburizing time is provided. A single coil for raising temperature, a plurality of coils for soaking, and a conveying mechanism that conveys a treatment object from a position of induction heating with th... | 11/16/2010 |
| 7811510 | Continuous carburizing furnace A furnace includes a carburizing zone in which carburizing processing is performed upon workpieces loaded upon trays during the conveyance, and a plurality of regions which are arranged at the upstream side of the carburizing zone. Along with a tray upon which workp... | 10/12/2010 |
| 7722801 | Vacuum carburizing apparatus The vacuum carburizing apparatus introduces a carburizing gas into a carburizing chamber to subject the treatment material to vacuum carburizing. The vacuum carburizing apparatus comprises a carburizing chamber that houses a treatment material therein, a vacuum pump... | 05/25/2010 |
| 7507368 | Hot air circulation furnace A small hot-air circulation furnace performs continuous treatment using hot air at a fixed temperature. Hot air supplied from a heat source is blown out from an axial-flow fan toward a hearth to form a circulating flow passing through an annular heating-target mount... | 03/24/2009 |
| 7438119 | System for heat treating castings and reclaiming sand A system for reclaiming sand from a casting process includes a chamber having an inlet, an outlet, and a plurality of baffles defining a circuitous path for the sand therebetween, a heating element for providing heat to the chamber, and a fluidizing distributor for ... | 10/21/2008 |
| 7435375 | Annealing furnace purging and oxidation system and method In an improved annealing furnace for laminations having a purge vestibule and an oxidation section, atmosphere injection tubes with atmosphere injection jets are provided in the oxidation section at a conveyor directly beneath trays conveying the laminations. Atmosp... | 10/14/2008 |
| 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 |
| 7425298 | Thermal deburring machine A thermal deburring machine (1) is described, comprising a press (2) into which a deburring chamber (3) containing the workpieces to be deburred is inserted. The press (2) and the chamber (3) have a horizontal axis and the c... | 09/16/2008 |
| 7384595 | Heat-treating apparatus and heat-treating method A heat-treating apparatus comprises a table having a heating element buried therein, a plate-like target object to be processed being disposed on the table so as to be heated to a prescribed temperature, a support member for supporting the target object and movable ... | 06/10/2008 |
| 7361299 | Hydrogen closed-cycle hardening unit A hydrogen closed-cycle hardening unit is disclosed that consisting of a vacuum oven with an internal quenching and circulation system, adjusted to operate under a pressure of 2 MPa, fitted with conduits and valves for feeding and discharging of quenching atmosphere... | 04/22/2008 |
| 7357843 | Vacuum heat treating method and apparatus therefor The present invention provides a vacuum heat treating method, such as carburization, carbonitridation, high temperature carburization, high concentration carburization and the like, performed while supplying a mixed gas of ethylene gas and hydrogen gas under reduced... | 04/15/2008 |
| 7338629 | Integrated metal processing facility A system and method for forming and heat treating a metal casting are provided. ... | 03/04/2008 |
| 7331374 | Method and apparatus for assisting removal of sand moldings from castings Disclosed is a method for dislodging a mold from a casting formed within the mold. The mold may be removed from the casting by scoring the mold and applying a force sufficient to cause the mold to fracture and break into pieces. Additionally, the mold may be fractur... | 02/19/2008 |
| 7290583 | Methods and apparatus for heat treatment and sand removal for castings A system and method for heat treating castings and removing sand cores therefrom. The castings are initially located in indexed positions with their x, y, and z coordinates known. The castings are passed through a heat treatment station typically having a series of ... | 11/06/2007 |
| 7275582 | Methods and apparatus for heat treatment and sand removal for castings A system and method for heat treating castings and removing sand cores therefrom. The castings are initially located in indexed positions with their x, y, and z coordinates known. The castings are passed through a heat treatment station typically having a series of ... | 10/02/2007 |
| 7276204 | Carburization treatment method and carburization treatment apparatus The invention provides a carburization treatment method in which a carburization treatment is conducted simultaneously with an operation of supplying a hydrocarbon gas and an oxidative gas into a furnace kept under a reduced pressure. Preferably, the internal pressu... | 10/02/2007 |
| 7267793 | Furnace for vacuum carburizing with unsaturated aromatic hydrocarbons Vacuum carburizing of ferrous workpieces is performed at low pressure in a vacuum furnace using an unsaturated aromatic such as benzene as the carburizing medium. The unsaturated aromatic is gas phase hydrogenated into naphthenes, such as cyclohexane, which is meter... | 09/11/2007 |
| 7264768 | Single substrate annealing of magnetoresistive structure A device for magnetically annealing magnetoresistive elements formed on wafers includes a heated chuck and a delivery mechanism for individually placing the wafers individually on the chuck one at a time. A coil is adjacent to the chuck and generates a magnetic fiel... | 09/04/2007 |
| 7260901 | Device for controlling the temperature of objects The invention relates to a device for controlling the temperature of objects, especially for drying or cooling objects, said device comprising a housing containing at least two tempering units which are arranged in a functionally parallel manner. Each tempering unit... | 08/28/2007 |
| 7258755 | Integrated metal processing facility An integrated metal processing facility in which molten metal is poured into a series of molds at a pouring station to form metal castings, which are then transferred to a heat treatment line. Prior to introduction of the castings into a heat treatment station of th... | 08/21/2007 |
| 7252798 | Hood-type annealing furnace, especially for steel strip and wire bunches The invention describes a hood-type annealing furnace, especially for steel strip or wire bunches, with an annealing base (1) for receiving the material (7) to be annealed, a protective hood (8) which is placed on the furnace in a gas-tight mann... | 08/07/2007 |
| 7204894 | Annealing of hot rolled steel coils with clam shell furnace Disclosed is a high temperature annealing furnace for hot rolled steel coils. The furnace of the present invention pivotably rotates about a pivot member between an opened and closed position. Prior to the annealing step, the hot rolled steel coils are placed within... | 04/17/2007 |
| 7204952 | Vacuum furnace for carburizing with hydrocarbons Vacuum carburizing of ferrous workpieces is performed at low pressure in a vacuum furnace using a carburizing hydrocarbon as the carburizing medium. The furnace is constructed to be generally transparent to the carburizing hydrocarbon so that cracking tends to occur... | 04/17/2007 |
| 7159737 | Internally cooled pressure containment apparatus A pressure containment apparatus includes a shell having a top end and a bottom end forming a pressure chamber. The pressure containment apparatus also includes a liner having an outside diameter larger than an inside diameter of the shell, wherein the liner is remo... | 01/09/2007 |
| 7157672 | Method of manufacturing stainless steel pipe for use in piping systems A welded low carbon dual phase (ferrite plus martensite) and/or low carbon martensitic stainless steel PIPE having requisite yield strength and corrosion and/or erosion resistance is shown. Pipe can be manufactured up to a maximum outside diameter from finished plat... | 01/02/2007 |
| 7029625 | Continuous vacuum carburizing furnace A continuous vacuum carburizing furnace of the invention includes: a heating chamber for heating a workpiece under a atmospheric pressure; a first conditioning chamber in which the pressure is reduced from the atmospheric pressure after the receipt of the workpiece ... | 04/18/2006 |
| 7018584 | Method and apparatus for metal processing A method for metal processing is provided in which a cooling atmosphere comprising hydrogen is used for accelerated cooling of a processed metal part in a furnace, resulting in improved properties for the metal part. A sintering furnace is also provided and comprise... | 03/28/2006 |
| 7018485 | Apparatus for subjecting rare earth alloy to hydrogenation process and method for producing rare earth sintered magnet using the apparatus An apparatus for subjecting a rare earth alloy block to a hydrogenation process includes a casing, gas inlet and outlet ports, a member arranged to produce a gaseous flow, and a windbreak plate. The casing defines an inner space for receiving a container. The contai... | 03/28/2006 |
| 7005104 | Power module for an autoclave The invention relates to the field of powder metallurgy, in particular to the design of autoclaves for manufacturing of composite materials by treatment of workpieces of discrete materials, mostly powders, at high pressures and temperatures. The autoclave mod... | 02/28/2006 |
| 6994350 | Crush zone and method for introducing crush zone into vehicle structure The present invention involves a method to produce crush zones in aluminum structures using controlled application of retrogression heat treatment. Selected areas of a tubular rail are retrogression heat treated to locally lower the tensile yield strength. As a resu... | 02/07/2006 |
| 6960318 | High temperature/high pressure vessel In a high temperature/high pressure vessel for treating a workpiece placed in the interior of the vessel at a high temperature and a high pressure wherein piano wire is wound under tension round an outer periphery of a cylindrical body to apply a compressive residua... | 11/01/2005 |
| 6949722 | Method and apparatus for active temperature control of susceptors A method and an apparatus utilized for thermal processing of substrates during semiconductor manufacturing. The method includes heating the substrate to a predetermined temperature using a heating assembly, cooling the substrate to the predetermined temperature usin... | 09/27/2005 |
| 6910522 | Methods and apparatus for heat treatment and sand removal for castings A system and method for heat treating castings and removing sand cores therefrom. The castings are initially located in indexed positions with their x, y, and z coordinates known. The castings are passed through a heat treatment station typically having a series of ... | 06/28/2005 |
| 6902635 | Multi-cell thermal processing unit The present invention relates to a multi cell thermal processing unit. The thermal processing unit comprises an air tight common chamber containing an atmosphere other than ambient air. A loading cell is linked to the common chamber via a gas tight door for providin... | 06/07/2005 |
| 6901990 | Method and system for processing castings A method and system of processing castings is provided in which one or more castings are deposited into a mobile furnace and moved from one station to another of a multi-station casting processing system. The interior of the mobile furnace is heated so as to maintai... | 06/07/2005 |
| 6846366 | Carburizing method and carburizing apparatus There is provided an economical carburizing method and carburization apparatus capable of carrying out carburizing treatment with a quality as high as that in a normal case and a high reproducibility even if carburizing conditions differ from those in a normal case.... | 01/25/2005 |
| 6824736 | Pusher furnace rails with plate-shaped sliding supports and sliding shoes The invention relates to a pusher furnace (1) for the annealing treatment of aluminum bars for instance. Rails (7) with plate-shaped sliding supports (8) are provided. Said supports cover the entire width of the rails (7) and are produced... | 11/30/2004 |
