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| Number | Title | Issue Date |
| 7322215 | Method for blank pressing of optical components Methods for press molding a glass body, especially for optical applications, without additional grinding and polishing steps are described. One method is performed with a press mold having an upper mold part, a lower mold part and, if necessary or desired, a ring. I... | 01/29/2008 |
| 6993937 | Preform inlet arrangement for an optical fiber drawing furnace, a furnace provided with that kind of inlet arrangement, and a preform equipped to co-operate with that inlet arrangement An inlet arrangement for inserting a preform (3′) into a furnace (1′) for drawing a fiber (2′). The furnace includes an enclosure (4′) at the top of which there are both an opening to allow insertion of a preform which moves in tr... | 02/07/2006 |
| 6964331 | Cantilever mounted rotary brush conveyor belt cleaner The cantilever mounted rotary brush conveyor belt cleaner is mounted on one side of a conveyor apparatus, with the rotary brush extending beneath the head pulley and the return strand of the belt to remove foreign material adhering to the belt. The unit includes a s... | 11/15/2005 |
| 6840060 | Methods for achieving operating temperature of glass contacting surfaces of glass forming equipment, and gas mixture therefor Method of heating glass contacting surfaces, comprising heating the glass contacting surfaces to a predetermined operating temperature by combustion of a hydrocarbon fuel gas mixture which includes 90% by volume of MAPP gas and 10 percent by volume of propane. Anoth... | 01/11/2005 |
| 6789397 | I.S. machine An I.S. machine is disclosed wherein the blow molds are held open during a preheat blank mold mode of operation and the neck ring arms of an invert and neck ring assembly are rotated to an acute angle and opened to release held parisons. A cullet chute is defined in... | 09/14/2004 |
| 6766663 | I.S. machine A parison chute assembly for an I.S. machine. The assembly has a chute which is rotatably supported at one end and is displaceable from an out of the way position above the horizontal down to a vertical position for receiving gobs. ... | 07/27/2004 |
| 6579380 | Method and apparatus for cleaning molds used in the glass fabrication industry A method of removing graphite from metal molds used in the glass fabrication industry, the method including placing a metal glass-fabricating mold with graphite bonded thereto in a chamber, providing an oxygen rich mixture of combustible gases in the cham... | 06/17/2003 |
| 6574991 | Pure fused silica, furnace and method An article of relatively pure silica, and a furnace and method of producing the article. The article is produced by collecting molten silica particles in a refractory furnace in which at least a portion of the refractory has been exposed to a halogen-cont... | 06/10/2003 |
| 6463764 | Germanium-containing particulate capture from an exhaust gas stream of a glass production system The invention relates to a method and apparatus for a glass manufacturing facility. The apparatus includes a glass production system providing an exhaust stream entrained with particulate material including germanium--containing particulate. The apparatus... | 10/15/2002 |
| 6301930 | Apparatus for washing curved sheets of glass and corresponding method An apparatus and corresponding method for cleaning curved sheets of glass. The apparatus indexes glass sheets in a non-continuous manner through at least a pre-washing zone, a washing zone, a rinsing zone, and/or a drying zone. The glass sheets proceed th... | 10/16/2001 |
| 6170293 | Lehr roll cleaning apparatus In situ lehr-roll cleaning apparatus includes a carriage supported within the space between first and second adjacent rolls, the carriage having a first set of elements contacting the surface of the first roll and a second set of elements contacting the s... | 01/09/2001 |
| 6131502 | Cavity jacket for plunger piston A device for inhibiting glass from falling into an annular cavity formed between a plunger piston and an inner piston telescopically journalled within a longitudinal cavity within the plunger piston includes a rigid sleeve mountable to the plunger piston,... | 10/17/2000 |
| 6032490 | Mold for fabricating optical fiber guide block In a grindstone for fabricating a mold which has optical fiber engagement portions of an optical fiber guide block used for aligning optical fibers, two main grinding surfaces are provided to form the optical fiber engagement portions contacted with the s... | 03/07/2000 |
| 5882372 | Apparatus for use in confining a gaseous stream containing wet or sticky particles or fibers In a process of making gas laid products by entraining particles at least partially coated with a binder in a gaseous stream, passing the stream through a forming chamber and through a permeable collecting surface where the particles build up to form a pr... | 03/16/1999 |
| 5773529 | Method and apparatus which removes odor and pollutants when preparing cullet for use in an electrostatic bed filter A method and apparatus for treating cullet before use as a raw material in a glass manufacturing process is disclosed. The method includes providing a bed of cullet; passing hot gases through the bed, the quantity and temperature of gases being sufficient... | 06/30/1998 |
| 5762676 | Product for molding glass lenses having difficult shapes An improved tool is provided for pressing glass into a precision optical element having a strong concave surface. The tool is selected from ceramic and metal materials having coefficients of thermal expansion greater than the coefficient of the pressed gl... | 06/09/1998 |
| 5628808 | Glass melter off-gas system Apparatus and method for melting glass in a glass melter in such a way as to reduce deposition of particulates in the off-gas duct. Deposit accumulation is reduced by achieving an off-gas velocity above approximately 15 meters/second and an off-gas temper... | 05/13/1997 |
| 5584903 | Permeable attenuating distributor for a glass container coating apparatus and a method for coating containers Apparatus and method for coating hot glass bottles are improved by providing a controlled non-turbulent air supply directed downward across the coating material stream. The apparatus has a relocated blower for delivering process fluid (e.g. air) into an e... | 12/17/1996 |
| 5522911 | Device and method for forming a coating by pyrolysis A device for the formation, by pyrolysis, of a coating of metal or a metal compound on one face of a hot glass substrate which is in motion by bringing the face into contact with a gaseous reagent includes a roof; support device for conveying the hot glas... | 06/04/1996 |
| 5342427 | Apparatus for cullet preheating and polluting emission reduction in the glass manufacturing process A apparatus for simultaneously preheating cullet and removing pollutants from glass furnace gases is disclosed. Raw moist cullet having fine glass dust material and other impurities adhered to its surface is heated by furnace gases which remove the moistu... | 08/30/1994 |
| 5201929 | Apparatus for producing flakes of glass A process for producing flakes of glass. The process is started by applying a solution containing an organic metal compound to a substrate. The solution is dried and peeled from the substrate. The resultant film is sintered. There is also disclosed an app... | 04/13/1993 |
| 5137561 | Mechanism for exchanging cloth covering on glass sheet forming fixture A system (10) for changing a cloth covering ring (12) in a glass sheet heating furnace (18) includes an apparatus (26) operable for removing and replacing the cloth ring, a cloth ring changing furnace section (28) that provides access by apparatus (26) in... | 08/11/1992 |
| 5078774 | Method and apparatus for heat-strengthening glass sheets The invention relates to an apparatus for heat-strengthening glass sheets. In a heat-strengthening station (3) down-stream of a heating furnace the cooling rate of a glass sheet is retarded by means of plates (9, 11), which are set above and below a glass... | 01/07/1992 |
| 4988374 | Method and apparatus for contaminant removal in manufacturing optical fibre An extrnal fibre drawing furnace is maintained at or close to its normal working temperature while contaminants are removed between fibre pulls. Either a removable insert, replaceable gas port assembly, or cleanable gas transfer duct, enable this to be ac... | 01/29/1991 |
| 4973349 | Chamber for the thermal treatment of objects A chamber (1) for the thermal treatment of objects comprises in its interior heating means (3, 4) and means (5) to support the objects (2) to be treated, the walls of this chamber comprising a thermal insulating lining, and a portion (30) of these walls b... | 11/27/1990 |
| 4871623 | Sheet-member containing a plurality of elongated enclosed electrodeposited channels and method A sheet member and a method for constructing the sheet member. The sheet member includes a plurality of elongated, enclosed channels formed by electrodeposition.... | 10/03/1989 |
| 4767438 | Apparatus for cleaning material transporting rollers The roller cleaning apparatus of the present invention includes a frame which has a pair of caster mounted wheels located at one of its ends. The casters are connected to one another through a tie-rod which causes them to turn as a unit between a right-ha... | 08/30/1988 |
| 4737181 | Method and apparatus for controlling a pressing machine for the manufacture of glass articles In a pressing machine for the manufacture of glass articles, which comprises, a base; a gyratory table composed of mold supporters equidistantly laid out around the table, thereby carrying the molds from one station to the next as the table gyrates interm... | 04/12/1988 |
| 4684616 | Methods for the removal and/or prevention of build-up of slag and composition for use in said methods Use of borax in the removal of and/or to prevent the build-up of slag on heat transfer surfaces in glass manufacture and allied industries. The borax may be used in association with a minor amount of a transition metal acetylacetonate. The borax is prefer... | 08/04/1987 |
| 4666491 | Process and apparatus for use in the fabrication of a glass pane The invention relates to a process for the bending and toughening of glass panes in a horizontal position during movement from a bending station through a toughening station to a transfer station. A monitoring device in the form of a detector, located in ... | 05/19/1987 |
| 4666490 | Aqueous waste vitrification process and apparatus A process is provided for treating an aqueous stream of nonradioactive hazardous waste containing inorganic compounds capable of forming oxides upon thermal treatment in which at least one of the oxides is a glass former, glass intermediate or a glass mod... | 05/19/1987 |
| 4388094 | Method and apparatus for producing tubular glass article Disclosed are a method and apparatus for forming a continuous length of glass article. A coating of glass particles is deposited on a mandrel having a thermal coefficient of expansion much greater than that of the glass particles. The mandrel is allowed t... | 06/14/1983 |
| 4321075 | Skimming apparatus A process and apparatus for skimming the surface of molten glass in a tank to produce a portion thereof free of contamination includes driving a substantially horizontally disposed strut connected to a scraper arm so as to pivot the strut to raise the scr... | 03/23/1982 |
| 4317667 | Method and apparatus for fabricating lightguide preforms A lightguide starting tube or rod (12) passes through opposed lateral openings (51--51) in a chamber (31) which contains an oxy-hydrogen torch (14) used to deposit particulate glass on the rod. Frusto-conical, laminar flow, gas shields (71 and 72) are for... | 03/02/1982 |
| 4308046 | Apparatus for treating articles Apparatus for treating fragile vitreous articles such as glass sheets which are apt to break when the treatment involves thermal conditioning. The apparatus includes spaced conveyor members for conveying the articles in a predetermined direction over a tr... | 12/29/1981 |
| 4208201 | Process and apparatus for treatment of exhaust gases from glass melting furnaces An improvement in the treatment of exhaust gases from glass melting furnaces is provided. Exhaust gases from such furnaces contain pollutants or contaminants in the form of condensibles which have been difficult to remove. To render these condensibles mor... | 06/17/1980 |
| 4042364 | Cleaning apparatus for conveyor rolls Apparatus for removing uneven and crusty deposits from and burnishing the surfaces of conveyor rolls employed in the manufacture of flat glass by the float process. The cleaning apparatus is provided with a rotating annular brush which is yieldingly urged... | 08/16/1977 |
