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Class Information
Number: 373/27
Name: Industrial electric heating furnaces > Glass furnace device
Description: Subject matter specifically adapted for melting, or treating glass or silica.










Sub-classes under this class:

Class Number Class Name Patents
373/28 Filament discharge (i.e., bushing) 35
373/29 Joule effect heating 26


Patents under this class:
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Patent Number Title Of Patent Date Issued
8051682 Apparatus and method for making glass preform with nanofiber reinforcement Nov. 8, 2011
7297909 Method and apparatus for homogenisation of melt Nov. 20, 2007
7137277 Method and device for producing colored glasses Nov. 21, 2006
7120185 Method and apparatus for waste vitrification Oct. 10, 2006
7024888 Method for changing glass compositions in melting installations, and corresponding melting installation Apr. 11, 2006
7003985 Method and apparatus for removing polymeric coatings from optical fiber in a non-oxidizing environment Feb. 28, 2006
6889527 Skull pot for melting or refining inorganic substances, especially glasses and glass ceramics May. 10, 2005
6880365 Use of sintered refractory material based on tin oxide for producing glass furnace throats Apr. 19, 2005
6853673 Process and device for producing a quartz glass crucible by ring-like arc, and its quartz glass crucible Feb. 8, 2005
6848275 Method for melting or refining glasses or glass ceramics Feb. 1, 2005
6810068 Electric glass melting furnace, with pivoting wall elements Oct. 26, 2004
6799441 Furnaces for fused silica production Oct. 5, 2004
6795484 Method and system for reducing a foam in a glass melting furnace Sep. 21, 2004
6757317 Device for melting or purifying of inorganic sustances Jun. 29, 2004
6568215 Method and apparatus for melting a particulate material May. 27, 2003
6492628 Heater supporting structure and heating furnace for bending a glass sheet Dec. 10, 2002
6414982 Device for melting and/or refining inorganic compounds Jul. 2, 2002
6339610 Glass melting tank and process for melting glass Jan. 15, 2002
6279352 Long hot zone furnace element and optical fiber drawing method practiced therewith Aug. 28, 2001
6144688 Heat furnace having complimentary electric heating Nov. 7, 2000
6014403 Induction furnaces for the synthesis of glasses Jan. 11, 2000
5881090 Quartz used in semiconductor manufacturing device, apparatus for manufacturing the quartz, and method for manufacturing the same Mar. 9, 1999
5862169 Float glass production Jan. 19, 1999
5743933 Apparatus and method for defibrating optically dense glass melts Apr. 28, 1998
5659564 Method and apparatus for maintaining a furnace stack Aug. 19, 1997
5636240 Air pollution control process and apparatus for glass furnace Jun. 3, 1997
5628808 Glass melter off-gas system May. 13, 1997
5613994 Electric furnace for melting glass Mar. 25, 1997
5588978 Process and apparatus for coloring glass Dec. 31, 1996
5550857 Method and apparatus for waste vitrification Aug. 27, 1996
5490162 Process and device for the continuous treatment of silicon Feb. 6, 1996
5332702 Low sodium zircon refractory and fused silica process Jul. 26, 1994
5327452 Forehearth Jul. 5, 1994
5319669 Hazardous waste melter Jun. 7, 1994
5312471 Method and apparatus for the manufacture of large optical grade SiO.sub.2 glass preforms May. 17, 1994
5271032 Lid heater for glass melter Dec. 14, 1993
5265118 Silicon carbide whisker production apparatus Nov. 23, 1993
5241558 Vertical glass melting furnace Aug. 31, 1993
5228052 Plasma ashing apparatus Jul. 13, 1993
5173919 Manipulation of the exit gas flow in a melting furnace Dec. 22, 1992
5151918 Electrode blocks and block assemblies Sep. 29, 1992
5134627 Batch charger for glass furnace Jul. 28, 1992
5131005 Melting apparatus having double wall structure Jul. 14, 1992
5075076 Novel palladium-based alloys containing tin and their use in the glass industry Dec. 24, 1991
5062118 Electric melting furnace for vitrifying waste Oct. 29, 1991
5051235 Novel palladium-based alloys containing indium bismuth, silver and copper Sep. 24, 1991
5028248 Method of melting materials and apparatus therefor Jul. 2, 1991
4969940 Apparatus and method for making mineral wool from coal-ash Nov. 13, 1990
4927446 Glass melting furnace May. 22, 1990
4823359 Furnance having dense refractory oxide liner Apr. 18, 1989

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