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| Number | Title | Issue Date |
| 5727479 | Furnace door closure system A guillotine-style door closure system for a furnace comprises a furnace opening with a door frame on a vertical side of the furnace; a furnace door adapted to mate with the frame; a left closing chain mounted, at one end, to the vertical side of the furn... | 03/17/1998 |
| 5466150 | Sagger wall for a ring pit furnace The invention relates to a partition wall, made up of a multiplicity of segments intended for a multi-compartment furnace as used for firing graphite electrodes, for instance. The invention calls for expansion joints to be incorporated between the segment... | 11/14/1995 |
| 5285736 | Pressure relief apparatus for a vessel A pressure relief door for an enclosed vessel such as a combustion chamber for an incinerator. The door is pivotally attached to the combustion chamber and is movable between a closed position wherein it confronts and seals a vent duct attached to the cha... | 02/15/1994 |
| 4906184 | Long life cover for heat chamber A method and means of heat insulating the opening in a heat chamber, e.g., a soaking pit, comprises applying a cover including an inside lining of ceramic fibres, under a load which is selected so that the fibres contact a peripheral wall of the opening u... | 03/06/1990 |
| 4629417 | Process and furnace for reheating slabs, billets, blooms and the like A reheating furnace has a row of heating chambers and a mobile roof whose sections can be moved relative to each other so as to expose the tops of selected chambers for admission or evacuation of slabs. The slabs are lowered into and lifted out of selecte... | 12/16/1986 |
| 4597341 | Soaking pit cover A lightweight, refractory soaking pit cover is formed from a plurality of trapezoidally shaped modules, with adjacent modules positioned wide-face-up and wide-face-down, and contained within a periphery of higher density rim blocks. The rim blocks and wid... | 07/01/1986 |
| 4580974 | Melting furnace cover A cover for a top charged melting furnace includes an annular ring of downwardly extending blocks or modules of ceramic fiber insulating material. A plurality of T-bar anchors cooperate with the blocks to provide an anchor system for the annular ring. Thi... | 04/08/1986 |
| 4524702 | Readily repairable and lightweight cover for a heated vessel A lightweight cover provides heat insulation for a heated vessel such as a soaking pit. The cover can be readily assembled in a manner providing for ease of repair plus simplicity of maintenance. The cover has a pair of opposing frame members with ceramic... | 06/25/1985 |
| 4342178 | Carbon anode furnace cover construction A pit cover for retaining heat in an open top, ring-shaped, carbon anode baking furnace comprises an insulating cement cast into the form of the cover, at least one metal beam embedded in the insulating cement, and a plurality of stainless steel needles i... | 08/03/1982 |
| 4210086 | Cover for soaking pits and the like A novel and improved cover structure is provided for a furnace, particularly a soaking pit cover. The cover comprises a one-piece cast ferrous metal shell or body having a shallow recess at one side, a plurality of anchor devices secured in spaced relatio... | 07/01/1980 |
| 4183305 | Furnace seal A peripheral seal for a furnace, e.g. a soaking pit, comprising an elongate rectangular section fibre assembly mountable on the furnace roof or door such that a flat face of the assembly can bear on a mating face of the furnace wall, means being provided ... | 01/15/1980 |
| 4097228 | Furnace cover A flexible insulating blanket attached to a metal backing with adjustable panels about the backing is used to cover the opening of a carbon anode baking furnace to bring about sealing contact between the cover and the furnace walls so as to minimize therm... | 06/27/1978 |
| 4019446 | Rail girder for soaking-pit cover A beam structure is described for supporting rails that carry wheeled cover carriages employed to close the openings of chambers in an industrial furnace of the soaking pit type. Each beam is disposed on the median wall between adjacent chambers and is ar... | 04/26/1977 |
