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Class 373/32 - With heating between chambers


Subclass of Class 373 - Industrial electric heating furnaces
Definition: Subject matter including heating means mounted in the passageway between
No. of patents: 25
Last issue date: 05/09/2006


NumberTitleIssue Date
7040122Process for production of molten glass
The invention concerns a process and a device from the production of molten glass. According to the invention, measures will be taken to lead the current of the molten glass through the tank furnace so that cutoffs of the glass current between the surface of ...
05/09/2006
7027481Method and electric furnace for melting vitreous materials
A method and apparatus for melting vitrifiable materials employs a melting tank for containing a molten bath with an upper surface. The tank has a floor and side walls and channels for discharging molten materials. A crown is situated above the floor and vitrifiable...
04/11/2006
7021082Method and apparatus for suppressing oxygen bubble formation in glass melts
In the method of making glass a glass melt is formed from starting materials in a melt apparatus, which includes at least one metal part having a metal surface in contact with the glass melt in a first region of the glass melt having a predetermined oxygen partial p...
04/04/2006
6339610Glass melting tank and process for melting glass
A glass melting tank with at least one pair of heating electrodes projecting into the glass melt and a process for melting glass are described. The glass melting tank has, at least in the area of the melt, a narrowed cross section area and the glass melti...
01/15/2002
6154481Method of operation of a glass melting furnace and a glass melting furnace for the practice of the method
In a glass melting furnace, a radiation screen wall is installed between a melting area and a refining area with a refining bank. This radiation screen wall leaves a flow path above the melt surface of the glass bath for the return flow of at least part o...
11/28/2000
5926498Melting furnace for the thermal treatment of special waste materials containing heavy metal and/or dioxin
A melting furnace for the thermal treatment of special waste materials containing heavy metal and dioxin is provided. The melting furnace includes a main furnace vessel, the main furnace vessel having a melting end for receiving a melt, and a gas chamber ...
07/20/1999
5862169Float glass production
A float glass production facility comprising a furnace including a melter, a refiner and a working end, the working end having two or more exits, each of which supplies a separate canal and float glass forming chamber, the working end being operable so th...
01/19/1999
5574746Melting furnace for thermal treatment of special wastes containing heavy metals and/or dioxin
A melting furnace for thermal treatment of heavy metal-containing and/or dioxin-containing special wastes, including a clog preventing system including a principal furnace vessel, which exhibits a melting tank for holding a melt; at least one feeder for f...
11/12/1996
5550857Method and apparatus for waste vitrification
A waste vitrification apparatus (10) having rotatable mixer impeller (16) functioning as a shaft electrode (60) and metallic vessel (14) functioning as a vessel electrode (62). A stream (12) of waste material and vitrifiable material are mixed and melted ...
08/27/1996
5271032Lid heater for glass melter
A glass melter having a lid electrode for heating the glass melt radiantly. The electrode comprises a series of INCONEL 690 tubes running above the melt across the melter interior and through the melter walls and having nickel cores inside the tubes begin...
12/14/1993
5241558Vertical glass melting furnace
A vertical glass melting furnace of the type having an inlet for raw materials at the top thereof, an outlet for molten glass at the bottom thereof, and a tabular electric resistance heating element for melting which is immersed at some level in molten gl...
08/31/1993
4932035Discontinuous glass melting furnace
Furnace has a melting section into which batch is fed to a glass bath heated by electrodes, a homogenizing section, and a clarifying section therebetween in which fossil fuel burners heat the surface of the bath. The clarifying section is separated from t...
06/05/1990
4882736Method for efficiently using flue gas energy in a glass furnace
Raw materials are fed into the charging end of a melting section which is heated by electrodes in the glass bath. The melted charge is then clarified under fossil fuel burners in a clarifying section, where the highest temperature of the furnace is mainta...
11/21/1989
4852118Energy saving method of melting glass
Disclosed are an energy saving method for melting glass in and a glass melting furnace for the practice of the method. A charge is melted in a melting section, clarified in a clarifying section adjoining the melting section, and then homogenized in an adjoinin...
07/25/1989
4831633Glass melting furnace
Glass is made from a feed consisting of batch materials and cullet in a furnace that is both electrically and gas fired. A batch-only hopper discharges through a blanket conveyor to a batch melting chamber that is electrically fired and is connected via a...
05/16/1989
4789990Glass melting furnace of improved efficiency
Disclosed is an improved efficiency glass melting furnace and a method of operation in which a mixture, or batch, is fed at a narrow side of a rectangular glass melting tank onto the molten glass mass (or bath) across the full width thereof. The furnace i...
12/06/1988
4433995Glass manufacture
A continuous process of making glass, in which a vitrifiable batch is fed to a furnace equipped with heating devices for melting the batch so as to produce molten glass. The furnace has a melting end into which the batch is fed and a delivery end remote f...
02/28/1984
4426217Electric melting of solidified glass in melting units
A method and apparatus for electrically melting solidified glass in difficult to reach regions of a glass melting furnace not readily accessible with fossil fuel heating means and, more particularly, to an electrode arrangement for electrically heating so...
01/17/1984
4421538Device for the manufacture of glass filaments
A forehearth supplied with molten glass from a tank furnace, with bottom passages overlying bushings for the extrusion of vitreous filaments, forms an elongate chamber whose sidewalls are penetrated by heating electrodes spaced apart in the longitudinal d...
12/20/1983
4169963Electrically heated melting furnace for mineral materials
An electrically heated melting furnace for the melting of mineral materials, such as frits, (vitreous) enamels and the like, wherein a bath of molten material contained in a tank is heated by means of electrodes contacting the molten material and having a...
10/02/1979
4118215Method and apparatus for heating glass in a forehearth
A method and apparatus are disclosed for heating molten glass in a forehearth of a glass furnace connected to a plurality of feeder conduits. An electrode is positioned at the inlet of the forehearth and another electrode is positioned at the inlet of at ...
10/03/1978
4110098Molten glass refining apparatus
The improvement in an apparatus for refining glass being fed along a channel wherein the molten glass is foamed throughout its thickness, the improvement involving an increase in the width of the channel at the location of foaming. Also, the channel is pr...
08/29/1978
4097259Feeder conduits for a glass furnace with heating electrodes
A feeder conduit is disclosed for conveying molten glass from a forehearth of a glass furnace to a glass forming machine. The feeder conduit includes an elongated conduit which receives molten glass from the forehearth and delivers the molten glass to an ...
06/27/1978
4029887Electrically heated outlet system
An apparatus for heating glass-forming materials within a delivery conduit extending from an electric glass melting furnace to a connector channel is disclosed. The conduit is made from an electrically conductive refractory metal such as molybdenum and is...
06/14/1977
3942968Method and apparatus for melting and subsequently refining glass
The present invention provides a method of melting glass, whereby in a glass melting furnace having electrodes positioned in a plurality of levels or planes the glass is melted in a vertical passage and thereafter discharged via an outlet passage at the b...
03/09/1976
 
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