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| Number | Title | Issue Date |
| 7235210 | Metal melting furnace There is provided a novel construction of a metal melting furnace that can preheat and melt the entire material more efficiently and that can facilitate operations for removing oxides deposited on the surface around the melting burner and the inside thereof and thus... | 06/26/2007 |
| 6841210 | Multilayer structured quartz glass crucible and method for producing the same Disclosed is a multilayer structured quartz glass crucible, for pulling up silicon single crystal, whose structure has at least three layers comprising: a translucent outer layer made of naturally occurring quartz glass and having a large number of pores, a transluc... | 01/11/2005 |
| 5599182 | Adjustable thermal profile heated crucible method and apparatus A heated crucible apparatus allows the adjustment of a thermal profile within a combustion chamber surrounding the crucible by introducing a sub-stoichiometric or a super-stoichiometric mixture of fuel and oxidant into the combustion chamber and varying t... | 02/04/1997 |
| 4944674 | Apparatus for heating a vessel An apparatus such as a crucible furnace for heating a vessel such as a crucible comprises an enclosure surrounding the vessel so that a flow path exists between the enclosure and the vessel which has an outer surface forming the inner boundary of the flow... | 07/31/1990 |
| 4628895 | Kiln and autonomous heat source portable integrated unit Disclosed herein is an invention that belongs to the technical field of equipment destined to hobby use and, in particular, relates to a portable kiln and heat source integrated unit. The invention envisages there being a combination of: a portable kiln w... | 12/16/1986 |
| 4455016 | Convertible melting furnace A melting furnace includes a crucible surrounded by a wall to form an annular heating chamber. A burner provides a long combustion flame which circulates through the annular chamber to heat the exterior of the crucible. The combustion flame and hot gases ... | 06/19/1984 |
| 4403955 | Receptacle for support of a melt containing crucible A segmented cup-shaped receptacle is provided for completely supporting a melt containing softened crucible, the receptacle having plurality of similar elevational segments. The elevational segments are normally adjoining to provide complete support for t... | 09/13/1983 |
| 4209295 | Furnace with homogeneous refractory tubular liner A high temperature furnace having an access opening and a thick-walled heat resistant lining comprising at least one homogeneous tubular member of multiple generally-tubular layers of vacuum deposited refractory fibers. Larger furnaces utilize two or more... | 06/24/1980 |
