FURNACE FOR HEATING GLASS SHEETS

The present invention provides a heater having a heat resistant, thermally and electrically insulating tube having a elongated opening through a wall of the tube and extending along at least a portion of the tube, and a heating element positioned within the tube and extending along at least a portio...

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Bibliographic Details
Main Author KELLY, JOSEPH B
Format Patent
LanguageEnglish
French
Published 12.03.1999
Edition7
Subjects
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Abstract The present invention provides a heater having a heat resistant, thermally and electrically insulating tube having a elongated opening through a wall of the tube and extending along at least a portion of the tube, and a heating element positioned within the tube and extending along at least a portion of the opening. A first portion of a section of the element extending along the opening is exposed and a second portion of the section of the element extending along the opening is shielded by the tube. In one particular embodiment of the invention, the tube is a cylindrically shaped aluminum oxide tube, the heating element is a nichrome wire coil, and the elongated opening is a slot having a constant width which extends between opposing ends of the tube.
AbstractList The present invention provides a heater having a heat resistant, thermally and electrically insulating tube having a elongated opening through a wall of the tube and extending along at least a portion of the tube, and a heating element positioned within the tube and extending along at least a portion of the opening. A first portion of a section of the element extending along the opening is exposed and a second portion of the section of the element extending along the opening is shielded by the tube. In one particular embodiment of the invention, the tube is a cylindrically shaped aluminum oxide tube, the heating element is a nichrome wire coil, and the elongated opening is a slot having a constant width which extends between opposing ends of the tube.
Author KELLY, JOSEPH B
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RelatedCompanies PPG INDUSTRIES OHIO, INC
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Snippet The present invention provides a heater having a heat resistant, thermally and electrically insulating tube having a elongated opening through a wall of the...
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SubjectTerms CHEMISTRY
GLASS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
Title FURNACE FOR HEATING GLASS SHEETS
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