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Class Information
Number: 373/137
Name: Industrial electric heating furnaces > Resistance furnace device > Lining
Description: Subject matter including covering means for the interior walls of the furnaces.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8487220 Vacuum oven Jul. 16, 2013
7837969 Method of making large-volume CaF.sub.2 single crystals for optical elements with an optic axis parallel to the (100)-or (110)-crystal axis and CaF.sub.2 single crystal made thereby Nov. 23, 2010
7838802 Radiation apparatus with capability of preventing heat convection Nov. 23, 2010
7195479 Hot liner insertion/removal fixture Mar. 27, 2007
6919539 Substantially-uniform-temperature annealing Jul. 19, 2005
6914218 Vacuum oven, system incorporating the same and method of using the same Jul. 5, 2005
6834072 Method, furnace shell, and furnace for rebaking and graphitizing carbon bodies Dec. 21, 2004
6624390 Substantially-uniform-temperature annealing Sep. 23, 2003
6501784 Thermal insulation to be inserted between two insulating structures Dec. 31, 2002
6452957 Sintered shaped body reinforced with platelets Sep. 17, 2002
6150643 Insulating material, electrical heating unit employing same, and manufacturing method therefor Nov. 21, 2000
5989021 Quartz crucible with large diameter for pulling single crystal and method of producing the same Nov. 23, 1999
5987053 High temperature air cooled vacuum furnace Nov. 16, 1999
5835525 Furnaces and linings having segments with surfaces configured to absorb and reradiate heat Nov. 10, 1998
5698124 Magnesia fiber draw furnace Dec. 16, 1997
5459748 Apparatus and method for electrically heating a refractory lined vessel by directly passing current througth an electrically conductive refractory via a resilient electrote assembly Oct. 17, 1995
5410567 Optical fiber draw furnace Apr. 25, 1995
5384804 Heat shielding cladding Jan. 24, 1995
5332200 Segmented ceramic liner for induction furnaces Jul. 26, 1994
5323484 Heating apparatus with multilayer insulating structure Jun. 21, 1994
5218615 Furnace lining and lining brick therefor with improved heat absorbing characteristics Jun. 8, 1993
5135726 Vertical gradient freezing apparatus for compound semiconductor single crystal growth Aug. 4, 1992
5134629 Inductor loop coating Jul. 28, 1992
5017209 High temperature furnace with thermal insulation May. 21, 1991
4900249 Aluminum reverberatory furnace lining Feb. 13, 1990
4823359 Furnance having dense refractory oxide liner Apr. 18, 1989
4717126 Apparatus for holding and refining of molten aluminum Jan. 5, 1988
4620309 Electric furnace construction Oct. 28, 1986
4612651 Heat treating furnace with heating element hangers and radiation shield spacers Sep. 16, 1986
4610016 Industrial furnace Sep. 2, 1986
4608698 Electric heat treating furnace with quickly serviceable heating assembly components Aug. 26, 1986
4595826 Heat treatment furnace and method of construction Jun. 17, 1986
4595358 Re-radiating heat shield Jun. 17, 1986
4553246 Construction method and apparatus for installing a hanger-supported heating element in an electrical resistance furnace Nov. 12, 1985
4537671 Cathode pot of an aluminum reduction cell Aug. 27, 1985
4504957 High temperature box annealing furnace Mar. 12, 1985
4493089 Electric furnace insulation Jan. 8, 1985
4486888 Furnace, especially a ceramic or heating furnace Dec. 4, 1984
4443881 Suspension system for electric heating elements Apr. 17, 1984
4435819 Electrical resistance furnaces Mar. 6, 1984
4432289 Furnace brick tie back assembly Feb. 21, 1984
4429209 Resistance welding pin Jan. 31, 1984
4425660 Shielding arrangement for a vacuum furnace Jan. 10, 1984
4418107 Cover for carbon bake pit Nov. 29, 1983
4418415 Ceramic fiber insulated furnaces with electrical hanger element of great mechanical integrity Nov. 29, 1983
4417346 High temperature melting furnace Nov. 22, 1983
4414674 Electric furnace thermal-insulating module Nov. 8, 1983
4411621 Furnace wall construction Oct. 25, 1983
4403329 Support system for electrical resistance element Sep. 6, 1983
4401613 Method of making thermal-insulating module Aug. 30, 1983

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