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| Number | Title | Issue Date |
| 7367205 | System for simultaneously heating and cooling glass A system and method for heating, forming, and tempering a glass sheet includes pre-heating the glass sheet to at least a first predetermined temperature. The system and method includes also applying radio-frequency energy to the glass sheet to heat it to at least a ... | 05/06/2008 |
| 7331198 | Bending apparatus for a glass sheet A desired temperature distribution is efficiently formed on a glass sheet by a simple structure without lowering heat efficiency within a furnace. A heating furnace conveys a bending mold of a glass sheet and a radiation-heating device is provided in the heating fur... | 02/19/2008 |
| 7308806 | Air-exhausting lehr for laminated glass sheets The invention relates to an air-exhausting lehr for laminated glass sheets, including a tunnel-like lehr, a conveyor, including elements for carrying laminated glass sheets in a substantially upright position through the lehr, and air circulation ducts, having fans ... | 12/18/2007 |
| 7155939 | Apparatus for bending glass panels The invention relates to an apparatus for bending glass panels. The upper tier of successive mould carriers defines a number of heating sections, the last one of which is an actual bending section. The lower tier of successive mould carriers defines a number of cool... | 01/02/2007 |
| 7017370 | Method and device for the homogenous heating of glass and/or glass-ceramic articles using infrared radiation A method for the homogeneous heating of semitransparent and/or transparent glass and/or glass-ceramic articles using infrared radiation so that the glass and/or glass-ceramic articles undergo heat treatment at between 20 and 3000° C., notably at between 20 and 1705... | 03/28/2006 |
| 7000430 | Method of forming glass-ceramic parts and/or glass parts The invention relates to a method of producing glass-ceramic parts and/or glass parts by deformation of a glass-ceramic blank and/or glass blank. The invention is characterized in that forming is carried out using infrared radiation. ... | 02/21/2006 |
| 6983624 | Apparatus for bending glass panels The invention relates to an apparatus for bending glass panels. An upper tier of successive mould carriages (9) defines a number of heating stations, the final one being an actual bending station (4b). A lower tier of successive mould carriages ... | 01/10/2006 |
| 6826929 | Method for simultaneously heating and cooling glass to produce tempered glass A system and method for heating, forming, and tempering a glass sheet includes pre-heating the glass sheet to at least a first predetermined temperature. The system and method includes also applying radio-frequency energy to the glass sheet to heat it to at least a ... | 12/07/2004 |
| 6783358 | Furnace and method for heating coated glass sheets A furnace (12) and a method for heating coated glass sheets by radiant heating also provides convective heating by hot air jets that entrain hot air within the furnace so the combined flow of hot air heats an upwardly facing coated glass surface in addition t... | 08/31/2004 |
| 6470711 | Furnace for heat treatments of glass sheets A furnace particularly for heat treatments of glass sheets, comprising a longitudinally-elongated chamber which contains roller conveyor elements for the glass sheets. The furnace comprises irradiation-heating elements combined with first and second eleme... | 10/29/2002 |
| 5876477 | Apparatus for heating and bending glass sheets involving raising a glass sheet towards furnace heat sources When heating and bending glass sheets in a furnace, it has been found to be desirable to raise the glass sheets towards the furnace heat sources to increase obtainable temperature differentials and reduce heating power. An apparatus for bending the glass ... | 03/02/1999 |
| 5858048 | Energy efficient, electric rotary furnace for glass molding (repressing) precision optical blanks A furnace for molding glass blanks includes a housing having a series of electrical heating stations and a rotary door adapted to receive glass blanks for processing. The furnace also includes a rotary turntable for receiving the glass blanks and a steeri... | 01/12/1999 |
| 5766294 | Method and apparatus for producing an optical element using a molding block and a temperature effecting mechanism contacting the molding block for heat exchange A method and an apparatus for producing an optical element capable of performing a molding temperature control required for a plurality of independent molding blocks in a short period of time, and continuously and simultaneously producing a plurality of d... | 06/16/1998 |
| 5679123 | Method of heating and bending glass sheets When heating and bending glass sheets in a furnace, it is desirable to raise the sheets towards the furnace heat sources to increase obtainable temperature differentials and reduce heating power. Disclosed is a method of bending a glass sheet on an appara... | 10/21/1997 |
| 5322542 | Method of and apparatus for chamfering edge of glass vessel A glass vessel edge chamfering method and apparatus wherein heat energy can be controlled readily and chamfering of a glass vessel having a deformed profile, local chamfering and simultaneous processing of the opposite inner and outer sides of a lip of a ... | 06/21/1994 |
| 5244486 | Fluorescent tube coiling apparatus An apparatus is provided for coiling fluorescent tubes, so that the tubes may be placed within a bulb. The apparatus includes a rotatable turntable having a plurality of ovens thereon. Each oven has a lever to enable the oven to be opened for placement of... | 09/14/1993 |
| 5169423 | Method of heating glass sheet for laminated glass First and second glass sheets, which are to be combined together into a single laminated glass sheet, are heated in a heating furnace so that the temperature of the first glass sheet at the exit of the heating furnace and the temperature of the second gla... | 12/08/1992 |
| 5160362 | Process for manufacturing optical element In a process for manufacturing an optical element, in which a molding material is put in molds and is heated and press-molded to manufacture an optical element, a preheating treatment of the molding material is performed before it is put in the molds at a... | 11/03/1992 |
| 5120343 | Apparatus for producing optical glass element An apparatus of producing an optical glass element of the present invention comprises the steps of displacing a gob of optical glass on a first heat working jig to a second heat working jig by making the gob of optical glass to adhere to the second heat w... | 06/09/1992 |
| 4838915 | Method for heating thick-walled glass tubes and apparatus therefore A method for heating thick-walled glass tubes, particularly quartz tubes, in the manufacture of optical fibres while using microwave energy. According to the invention, the tube (5) is pre-heated to a temperature of about 1000° C.-1500° C., preferably i... | 06/13/1989 |
| 4812152 | Device and process for heating a flat object made of thermoplastic material along a predetermined zone In a process for heating an object made of thermoplastic material along a predetermined zone, a ring of burners arranged in series is guided along the zone and heats this zone, the zone forming a closed path and approximately matching the outer contour of... | 03/14/1989 |
| 4631381 | Magnetic yoke inductor for glass fiber manufacturing equipment The novel inductor is used in a glass fiber manufacturing equipment comprising a centrifuge heated by a main gas heating device and a complementary induction heating device. The efficiency of the inductor is increased by a magnetic flow guiding element di... | 12/23/1986 |
| 4074996 | Method of and apparatus for bending glass sheets A method of and apparatus for bending glass sheets to relatively sharp angles. The apparatus includes a sectionalized primary press bending member having articulated end sections for sharply bending portions of a glass sheet about lines superheated by a r... | 02/21/1978 |
| 4043785 | Shaping glass sheets Method and apparatus for shaping a glass sheet by the gravity sag bending process to include a sharp bend by a combination of overall heating and localized heating.... | 08/23/1977 |
