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| Number | Title | Issue Date |
| 6063331 | Annealing furnaces A bell type annealing furnace structure that includes a base which has a base plate member and an annular channel therearound. A plurality of circumferentially spaced enclosure members are provided, each having a coil support section with support legs dep... | 05/16/2000 |
| 5388809 | Method and apparatus for batch coil annealing metal strip Method and apparatus is disclosed for heat treating coiled, metal strip in bell shaped annealing furnaces employing an annealing stand upon which coils of strip are vertically stacked. An inner cover removably sealed to the stand surrounds the coil and an... | 02/14/1995 |
| 5048802 | Diffuser system for annealing furnace with chain reinforced, nodular iron convector plates A convection diffuser and charge support system for an annealing furnace utilizes a diffuser base assembly to support a stack of coiled rolls of steel that are to be annealed inside a furnace enclosure. The coils are arranged in a vertical stack atop the ... | 09/17/1991 |
| 4611791 | Diffuser system for annealing furnace with water cooled base A convection diffuser and charge support system for an annealing furnace utilizes a diffuser base assembly that includes a vane-carrying center casting which underlies a charge support plate, and which is perimetrically surrounded by a pair of outer and i... | 09/16/1986 |
| 4516758 | Diffuser system for annealing furnace A convection diffuser and charge support system for an annealing furnace utilizes a diffuser base, a base-encircling ring, and convector plates which are preferably formed as castings of nodular iron. The diffuser base defines an array of horizontally-ext... | 05/14/1985 |
| 4168013 | High temperature insulating container Mill processing of ingots and like metal articles at or after bringing to temperatures above about 900° C. is enhanced through self-heat soaking at such high temperatures to homogenize temperature and structural parameters throughout the body of such art... | 09/18/1979 |
| 4165868 | Method and apparatus for heating coils of strip Coils of strip to be annealed are placed in a furnace with their eye vertical and are heated to the annealing temperature by heating elements on the furnace above and below the level of the coils. An improved convector coil support includes a single metal... | 08/28/1979 |
| 4142712 | Method and apparatus for effecting uniform heat transfer in an industrial furnace A heat treating furnace is provided with high momentum burners for uniformly heating each work item therein primarily by convective heating. A plurality of work items are spaced in a row on a furnace base and enclosed by an outer cover sealed to the base ... | 03/06/1979 |
| 4097027 | Device and process for limiting surface oxidation of glowing hot metal dross A device limits the oxidation of the surface of hot metallic dross by preventing access of oxygen to the dross. The device includes a metal bell which is open at the bottom and can be moved vertically, a concrete base standing in a tank containing water a... | 06/27/1978 |
