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| Number | Title | Issue Date |
| 6506048 | Apparatus and method for transferring heat treated parts A parts container for minimizing oxidation of heat-treated parts during transfer in an oxygen-containing environment. The container includes: a heat-resistant vessel having an interior space and including oppositely positioned first and second apertures; ... | 01/14/2003 |
| 6331219 | Retarded cooling system with granular insulation material A system for cooling a hot rolled steel product at a retarded cooling rate comprises a laying head for forming the product into a continuous series of rings. A conveyor receives the rings from the laying head at a receiving station and transports the ring... | 12/18/2001 |
| 6270597 | Process for continuous heating and cleaning of wire and strip products in a stratified fluidized bed This invention is directed to a method for annealing strand wires or strips in a fluidized bed reactor having an atmosphere of fluidized gases flowing through fluidized particles. The method provides for stratifying the atmosphere of fluidized gases by pa... | 08/07/2001 |
| 5958156 | Process for treating a particulate material within a rotating retort Apparatus (1) and process for treating particulate material or powder (33) of a size capable of being fluidized in a retort (31) mounted for rotation on a pair of end axles (18, 41). Retort (31) is mounted on a tilt frame (5) for tilting movement in a ver... | 09/28/1999 |
| 5766544 | Process for fluidizing particulate material within a rotatable retort A method for fluidizing particulate material within a retort (22) mounted on a horizontal shaft or axle (36) for rotation. Gas enters retort (22) through a pipe (52) extending along the longitudinal axis of the shaft (36) and is exhausted through pipe man... | 06/16/1998 |
| 5542995 | Method of making steel strapping and strip and strapping and strip A method of making flat steel strapping or strip from rods, bars or slit steel includes the steps of heating a piece of steel to an elevated temperature greater than the upper critical temperature, hot rolling the steel and quenching the rolled steel from... | 08/06/1996 |
| 5407498 | Mechanically fluidized retort and method for treating particles therein A method and apparatus for diffusion of elements into or out of small metallic particles, the apparatus consisting of a sealed retort 22 horizontally mounted on an axle 36 with the retort subtended in the interior of a heating device 11. Gas and pressure ... | 04/18/1995 |
| 5324009 | Apparatus for surface hardening of refractory metal workpieces A process and apparatus for forming a hardened outer shell (40) on a refractory metal workpiece (36) preferably heated in a fluidized bed of metallic oxide particles (38) in an environment of an inert gas and a reactive gas with the reactive gas either ox... | 06/28/1994 |
| 5303904 | Method and apparatus for controlling heat transfer between a container and workpieces An apparatus for transferring heat between workpieces and a container (10, 10A). The container (10, 10A) has particulate material (28) occupying a substantial portion of the volume of the container (10, 10A) and the container (10, 10A) is rotated to fluid... | 04/19/1994 |
| 5145534 | Fluidized bed for quenching steel wire and process thereof A fluidized bed is disclosed for the continuous quenching of steel wires. The fluidized bed is provided with an air convection cooler with high cooling capacity. The temperature of the fluidized bed is regulated by means of a cooling air flow. Such a bed ... | 09/08/1992 |
| 5080729 | Process for rapid quenching in a collapsed bed A method of rapidly quenching articles in a fluidized bed or in a collapsed bed, wherein the bed comprises fine solid particles. A high conductivity gas may be used to transfer heat to or from the fluidized bed or the collapsed bed during at least a porti... | 01/14/1992 |
| 4612065 | Method for the heat treatment of workpieces A method is described for the heat treatment, preferably for the intermediate heat treatment, of workpieces, in which the workpieces coming from a heating apparatus are quenched in a fluidized bed under precise temperature and movement control, and then, ... | 09/16/1986 |
| 4457788 | Particulate medium for fluidized bed operations This invention relates to non-abrasive, lubricative, particulate solids, e.g. graphites, lime, calcium oxides, zinc oxides and compounds of higher saturated fatty acids, particularly, stearate salts, and their methods of use as fluidized bed media for pre... | 07/03/1984 |
| 4410373 | Process for heat treatment of a metal workpiece A process for heat treatment of a metal workpiece, such as a casting (steel, aluminum based alloy or white cast iron). The casting is heated in a fluidized particulate bed (sand) to a relatively constant first temperature. Then, the casting is held (e.g.,... | 10/18/1983 |
| 4379725 | Process for hot isostatic pressing of a metal workpiece A process for hot isostatic pressing of a metal workpiece, such as a ferrous casting. The workpiece is heated in a fluidized particulate bed (sand) to a temperature above the plastic range of the metal (e.g. 2000° F.). Then, the workpiece in the unfluidi... | 04/12/1983 |
| 4340433 | Method of heat treating articles This invention relates to a method of heat treating articles which utilizes a fluidized bed comprising a container containing a mass of refractory particles and having a porous base, a layer of such particles adjacent to the porous base being formed of he... | 07/20/1982 |
| 4170494 | Surface treatment for metal according to fluidized bed system The surface of a metal is treated in a fluidized bed system, in which a hot rolled metal is continuously subjected to an in-line treatment to suppress the formation of scale on its surface or to remove the same therefrom, and then is introduced into a gas... | 10/09/1979 |
| 4029524 | Heat treating process for a rod within a fluidized bed A heat treating process for a rod by the use of a fluidized bed consisting of alumina, silicon sand, zircon sand, and the like, is disclosed for adjusting the strength of the rod due to its cooling within the fluidized bed. While prior art heat treatment ... | 06/14/1977 |
