Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7730745 | Vitrification furnace with dual heating means Process for combustion and vitrification of waste in which at least one oxygen plasma jet is associated with a continuous melting device by high frequency direct induction. The crucible is composed of a continuous external shell and a sole plate, both cooled by a li... | 06/08/2010 |
| 7694533 | Method for the refining of glass A method for the refining of glass by means of high temperatures in a skull crucible is provided. The method includes introducing a glass melt in the skull crucible through an inlet disposed at an upper region of the skull crucible, heating the skull crucible by irr... | 04/13/2010 |
| 7503188 | Vitrification furnace with dual heating means Process for combustion and vitrification of waste in which at least one oxygen plasma jet is associated with a continuous melting device by high frequency direct induction. The crucible is composed of a continuous external shell and a sole plate, both cooled by a li... | 03/17/2009 |
| 7444837 | Method and device for melting glass using an induction-heated crucible with cooled crust A method and an apparatus for the rapid melting of glasses in a skull crucible is provided. The method and apparatus introduce high-frequency energy into the contents of the crucible by means of a coil arrangement surrounding the skull crucible, in order to heat the... | 11/04/2008 |
| 7336692 | Induction furnace for melting semi-conductor materials An induction furnace includes an induction coil, an electrically non-conductive crucible having an inner diameter disposed within the induction coil, and an electrically conductive member disposed below the crucible and having an outer diameter which is further from... | 02/26/2008 |
| 7297909 | Method and apparatus for homogenisation of melt Microwave radiation of frequency 0.1 to 20 GHz, is applied to the melt of viscosity in the range 104 to 101 Pa·s. The outside surface of heated space, where an outlet of the waveguide of microwave radiation is located, can be cooled. The micro... | 11/20/2007 |
| 7296441 | Device and method for melting a substance with the occurrence of a low level of contamination The invention relates to an apparatus and a method for low-contamination melting of high-purity, aggressive and/or high-melting glass or glass-ceramic. According to the invention, for this purpose a melt is heated in a crucible or melting skull crucible by means of ... | 11/20/2007 |
| 7248790 | Heating device for vehicle A heating device for a vehicle is provided with a radiation-heat generating unit for generating radiation heat, a first light-distributing unit for converting irradiation directions of the radiation heat into a substantial single irradiation direction, and a second ... | 07/24/2007 |
| 7159419 | System and method for vapor pressure controlled growth of infrared chalcogenide glasses A system and method for preparing chalcogenide glass are provided that allow for larger quantities of glass to be produced with lower production costs and less risks of environmental hazards. The system includes a reaction container operable to hold chalcogenide gla... | 01/09/2007 |
| 7137277 | Method and device for producing colored glasses The invention relates to a method and a device for producing colored glasses. The aim of the invention is to obtain a paricularly intimate mixture and to enable a quick change of the melt at the same time. To this end, the following procedure steps are applied: a me... | 11/21/2006 |
| 7032412 | Methods of manufacturing glass sheets with reduced blisters Methods of manufacturing glass sheets with manufacturing systems that including platinum-containing components are provided. The method includes providing a barrier coating to reduce the hydrogen permeability of the platinum-containing components which reduces the p... | 04/25/2006 |
| 7024888 | Method for changing glass compositions in melting installations, and corresponding melting installation The invention relates to a method for changing glass compositions in continuously operated melting installations which has a significantly shortened melt changeover time and therefore lower costs and in which the glass quality is not adversely affected. ... | 04/11/2006 |
| 7021082 | Method 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 |
| 7017372 | Molten glass supply device, glass formed product, and method of producing the glass formed product A molten glass supply device is provided, which can solve unavoidable problems for high viscosity characteristics in connection with the conventional molten glass supply device for high viscosity glass. Such problems include improperly high heating cost caused by ex... | 03/28/2006 |
| 7007515 | Noble metal duct for conducting a glass melt and method for conducting a glass melt The double-walled noble metal duct (1) for conducting a glass melt has an outer noble metal pipe (1b) and an inner noble metal pipe (1a) extending within the outer pipe, so that an inner space (21) is formed within the inner... | 03/07/2006 |
| 6848275 | Method for melting or refining glasses or glass ceramics This invention relates to a device for melting or refining glass or glass ceramics. According to the invention, such a device is provided with the following characteristics: a channel which is arranged in an essentially horizontal manner and which is provided with a... | 02/01/2005 |
| 6810689 | Process for the melting, refining and homogenizing of glass melts The invention relates to a process for the production of a glass melt. For the avoidance of the oxygen reboil the process is equipped with the following process stages or steps: a melting stage a refining st... | 11/02/2004 |
| 6799439 | Method for equalizing temperature differences in molten glass, and equipment therefor A method for equalizing temperature differences in molten glass in at least one temperature equalization zone that is in the form of a channel for transporting a glass melt. The equalization zone is located upstream from a tapping point, at which the glass is tapped... | 10/05/2004 |
| 6751989 | Device and method for melting or refining glass or glass ceramics The invention relates to a device for melting or refining glass or glass ceramics. According to the invention, a device of this type is provided with the following characteristics: a plurality of tubes which are U-shaped and arrange side by side so that they form a ... | 06/22/2004 |
| 6672107 | Quartz glass crucible and process for the production thereof In order to provide a quartz glass crucible distinguished by high purity, high opacity and/or low transmissibility in the IR spectrum, it is proposed on the basis of a known quartz glass crucible of opaque quartz glass with a crucible body symmetrical in ... | 01/06/2004 |
| 6588234 | Device and method of plaining glasses or glass-ceramics A device and method for the plaining of glasses or glass-ceramics. The device is provided with a melting vat, at least two plaining containers serially connected after the outlet of the melting vat, and at least one of the plaining containers is built in ... | 07/08/2003 |
| 6568215 | Method and apparatus for melting a particulate material Apparatus suitable for vitrifying nuclear waste comprises a tunable microwave cavity connected by a first wave guide to a source of microwave energy; cooling coils for cooling the exterior of the cavity; a hopper for loading particulate fusible material t... | 05/27/2003 |
| 6558308 | AVS melting process The Advanced Vitrification System (AVS) Melting Process is a process for vitrification of waste in a disposable canister. In the process, waste is dropped into the disposable canister from the top. While the waste is being dropped into the disposable cani... | 05/06/2003 |
| 6553787 | Method for manufacturing quartz glass crucible Present invention suppresses undesirable effects of the bubbles trapped in a silica glass crucible on single crystallization during the pulling process under a high-temperature load. When raw material powder is melted in a mold 1, graphite components of e... | 04/29/2003 |
| 6485404 | Advanced vitrification system improvements A process of making vitrified waste in a crucible and inserting the crucible and vitrified waste into an outer container after vitrification. The outer container is then sealed.... | 11/26/2002 |
| 6422041 | Method of boosting a glass melting furnace using a roof mounted oxygen-fuel burner In an industrial glass furnace which contains recuperators, regenerators, electric boost or other devices for providing heat to glass batch material an oxy-fuel burner mounted in the roof of the furnace provides additional heat to melt the batch material.... | 07/23/2002 |
| 6418755 | Glass melting apparatus and method including exhausting the furnace atmosphere by removal of a heating element A system for melting and delivering glass to a work area such as spinners for making fiberglass includes a melter with heaters so arranged that the "hot spot" in the molten glass is located away from the walls and corrosion sensitive parts so that the var... | 07/16/2002 |
| 6178777 | Side-discharge melter for use in the manufacture of fiberglass, and corresponding method An electric open-top melter for use in the manufacture of mineral fibers, such as fiberglass, is provided with a side-discharge outlet. The side-discharge outlet allows the melter, conditioner/refiner, and forehearth to all be located on substantially the... | 01/30/2001 |
| 6125658 | Glass furnace and installation comprising same The invention relates to the electric melting technique, in which the melting energy is dissipated in the bath of melted glass as a result of the Joule effect by means of electrodes which dip through the surface of the bath. According to the invention, th... | 10/03/2000 |
| 6058741 | Installation for vitrification of liquid radioactive wastes, cooled discharged unit and cooled induction melter for the installation The present invention relates to apparatuses for processing homogeneous/heterogeneous radioactive wastes comprising ion-exchange resins. A cooled discharge unit comprises a discharge pipe, a cooling jacket having a U-shaped form in cross section, a collec... | 05/09/2000 |
| 5964913 | Method of making a vitreous material The invention relates to a single phase vitreous material and to its production from a melt of a glass-forming multi-component feed mix. The process includes the preparation of a single phase melt in which there are mobile cations from a glass forming fee... | 10/12/1999 |
| 5961686 | Side-discharge melter for use in the manufacture of fiberglass An electric open-top melter for use in the manufacture of mineral fibers, such as fiberglass, is provided with a side-discharge outlet. The side-discharge outlet allows the melter, conditioner/refiner, and forehearth to all be located on substantially the... | 10/05/1999 |
| 5928397 | Method to produce fused quartz particulates A method to produce fused quartz particulates from quartz sand is disclosed employing continuous withdrawal of the molten material from a furnace apparatus. The molten material is rapidly cooled as withdrawn causing thermal fracture which is followed by m... | 07/27/1999 |
| 5743933 | Apparatus and method for defibrating optically dense glass melts An apparatus for defibrating optically dense glass melts, such as a glass melt from basalt by the jet process, is proposed which is equipped with a feeding mechanism (1) for the melt and defibrating aggregates (2), the feeding mechanism (1) having a feed ... | 04/28/1998 |
| 5647833 | Method for vitrifying hazardous waste Apparatus (10) and a method for vitrifying hazardous waste includes a melting vessel (12) in which a stirrer (38) mixes hazardous waste and any other necessary components for forming a glassy mixture upon heating while an electrical current is applied acr... | 07/15/1997 |
| 5564102 | Glass melting treatment method An object material to be melted (radioactive liquid waste and glass material) 16 is charged into the interior of a cold-crucible induction melting apparatus 10, and a conductor 18 the melting point of which is higher than that of the glass material is ins... | 10/08/1996 |
| 5562363 | Apparatus for vitrifying hazardous waste Apparatus (10) and a method for vitrifying hazardous waste includes a melting vessel (12) in which a stirrer (38) mixes hazardous waste and any other necessary components for forming a glassy mixture upon heating while an electrical current is applied acr... | 10/08/1996 |
| 5439496 | Method for the vitrification of waste materials and apparatus to carry out the method A method and apparatus for vitrifying waste materials containing a high quantity of carbon are provided which include the use of a secondary combustion chamber for burning the waste gases resulting from an electrically heated glass melting furnace. Additi... | 08/08/1995 |
| 5367532 | Furnace for the continuous melting of oxide mixtures by direct induction with high frequency, a very short refining time and a low energy consumption Furnace for the continuous melting of mixtures of oxides by direct induction at high frequency and a very short refining time and with a low energy consumption, comprising an intake (14) and a nozzle (15) for the continuous discharge of oxides into a meta... | 11/22/1994 |
| 5364426 | High shear mixer and glass melting method A glass melter 30 having a mixing impeller 34 for converting a feed stream 38 supplied to a vessel 32 into a vitrified glass melt 50. Heating means such as electrodes 36 or a gas burner 58 are used to heat the glass melt 50. Electrode 36 arrangements are ... | 11/15/1994 |
