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| Number | Title | Issue Date |
| 7231787 | Apparatus and method for bending and/or tempering glass An apparatus and method for bending and/or tempering glass substrate(s) are provided. The amount of near-IR radiation which reaches the glass to be bent and/or tempered is limited (e.g., via filtering or any other suitable technique). Thus, the IR radiation (used fo... | 06/19/2007 |
| 7059155 | Method of bending glass A method of bending glass, in which glass (5) is heated in a bending furnace (1). After the heating, the glass (5) is transferred onto a mold (7). The glass-bending mold (7) is at at least one point arranged to be bent substantiall... | 06/13/2006 |
| 6629436 | Apparatus for thermal treatment of glass and method and thermally treated glass therefrom The present invention is directed to an apparatus for thermal treatment of glass and method and thermally treated glass therefrom. The apparatus is capable of supporting the glass during thermal treatment such as tempering, annealing, bending, and/or shap... | 10/07/2003 |
| 6574992 | Method and device for curving and tempering a glass sheet During a process for bending and quenching a window pane, the latter is bent to the desired shape using a forming frame. Next, by means of this same forming frame, the entire surface of both sides of the bent window pane is rapidly cooled, in a quenching ... | 06/10/2003 |
| 6321570 | Method and apparatus for tempering and bending glass A method of and apparatus for bending and tempering a sheet of glass heated to a formable state provides an improved rigid mold and pressing member for pressing the heated sheet against the rigid mold which cools and bends the sheet. The pressing member i... | 11/27/2001 |
| 5938810 | Apparatus for tempering and bending glass A method of and apparatus for bending and tempering a sheet of glass heated to a formable state provides an improved rigid mold and pressing member for pressing the heated sheet against the rigid mold which cools and bends the sheet. The pressing member i... | 08/17/1999 |
| 5679124 | Cooling ring assembly for controlling stresses in a formed glass sheet A cooling ring assembly (20) and method for controlling stresses in a bent glass sheet G produce a strengthened bent glass sheet after the cooling is completed. The cooling ring assembly includes a cooling ring (22) that supports the glass sheet edge (24)... | 10/21/1997 |
| 5672189 | Glass bending press application Press-bending station for bending sheets of glass during the course of automated production of identical motor vehicle windows within specified batch sizes, where the glass sheets to be bent are heated in a continuous furnace to a specified bending temper... | 09/30/1997 |
| 5656052 | Apparatus for and method of heating and bending glass sheet A furnace is provided for the heating of glass sheets to be bent, whereby precise control of the temperature profile across a sheet may be achieved, resulting in improved control over the shape to which the sheet is bent. The furnace has at least one diff... | 08/12/1997 |
| 5383950 | Apparatus for supporting a glass sheet during a tempering process An apparatus for supporting a glass sheet during a tempering process is provided in which a truss ring structure having a hot/cold ring and a plurality of shaped fingers having converging diagonal sides extending from the hot/cold ring supports the glass ... | 01/24/1995 |
| 5346526 | Apparatus for bending glass sheets A method of and apparatus for establishing a predetermined thermal profile in a glass sheet immediately prior to press bending outside the heating furnace. The press bending members are provided with arrays of heating elements that are individually or zon... | 09/13/1994 |
| 5328496 | Apparatus including mold having covering for annular bending/tempering molds An apparatus for bending/tempering glass sheets raised to their softening point with a view to their bending and tempering includes an upper plate mold and a lower annular mold on which the glass sheets are deformed, and with respect to which the edge of ... | 07/12/1994 |
| 5296014 | Device for bending glass sheets on bending mold having a cover A device for bending glass sheets which includes a furnace for heating the glass, a conveyor, a bending station within which there is suspended, notably from a plate, an upper bending mold at least partly disposed inside the skirt of a peripheral suction ... | 03/22/1994 |
| 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 |
| 5118335 | Tempering ring design Apparatus for handling a hot glass sheet during conveyance from a hot atmosphere to a cold atmosphere comprising a ring-like member having an upper surface engaging a glass sheet outline that consists essentially of a phenolic resin reinforced with fibers... | 06/02/1992 |
| 5096480 | Apparatus for radiatively cooling glass sheets An apparatus (10) for cooling a glass sheet (G) formed on an upwardly facing full face male glass sheet shaping mold (12) disclosed includes a glass sheet press ring (14) mounted on a press ring enclosure (16). A freeze plate (18) having first and second ... | 03/17/1992 |
| 5079931 | Bending or supporting mould for glass sheets The invention relates to a glass sheet bending or supporting mould which is made primarily by casting of a ceramic material and which includes a curving or flat shaping surface, a number of orifices (10, 11) in a shaping surface (7, 8) as well as channels... | 01/14/1992 |
| 5066320 | Method for bending complex shapes on a glass sheet The invention relates to a method and a mould assembly for bending complex shapes on a glass sheet. The invention relates also to a bending mould and its manufacturing method. A heated glass sheet placed upon a ring mould is bent to its final shape by mea... | 11/19/1991 |
| 5053069 | Process and device for bending and tempering by contact Glazings are preshaped before putting them through a step of tempering by contact. In a preferred variant, tempering by contact is applied only the central area of the glazing and the marginal zone thereof is tempered by blowing cold air.... | 10/01/1991 |
| 5045102 | Blow box for heat tempering glass sheets in horizontal position A lower blow box of a device for heat tempering glass sheets in horizontal position exhibits a series of nozzle plates which are placed at a distance (A) from one another. Between nozzle plates there are obliquely placed sheet-metal chutes, U-shaped in cr... | 09/03/1991 |
| 4983200 | Glass shaping ring having a thermal insulating member and method of shaping glass sheets using same A method of reducing localized tensile stresses in shaped glass sheets formed by sag bending. An unperforated thermal insulating member is mounted throughout the area within a shaping rail and spaced below a heat softened glass sheet shaped on the shaping... | 01/08/1991 |
| 4979977 | Bending iron having member to effect reverse bend and method of using same A method and apparatus for controlling the shape of heat softened glass sheets. A pan member is positioned inboard of the shaping rails of a bending iron. The upper surface of the pan member has a curvature corresponding to the final desired shape of a se... | 12/25/1990 |
| 4973344 | Method and apparatus for bending glass sheets The invention is directed to the press bending of individual heated glass sheets to be subsequently laminated in pairs to a plastic interlayer. The sheets are individually press bent between a female ring-type shaping rail and a continuous male mold surfa... | 11/27/1990 |
| 4973348 | Carriage to carry mold for bending glass sheets This invention relates to a mold carriage for carrying thereon a mold for bending a glass sheet, or a stack of glass sheets to be laminated, placed thereon into a curved shape by heating in a furnace. To locally intensely heat the glass sheet in a selecte... | 11/27/1990 |
| 4956001 | Method and apparatus for bending and annealing glass sheets to be laminated The invention relates to the bending and annealing of two, or more than two, glass sheets to be united into a curved and laminated glass member such as an automobile windshield. In a shaping furnace a heated first glass sheet is bent into a curved glass s... | 09/11/1990 |
| 4865639 | Glass sheet bending mold A glass sheet bending mold for bending a heated glass sheet into a predetermined shape is formed by casting a steel material having a heat resistance properties so as to be stable at a temperature suitable for bending a glass sheet. The glass sheet contac... | 09/12/1989 |
| 4726832 | Glass plate heating/bending device A local heating source is provided in a heating furnace in which a glass plate is continuously conveyed. The heating source is position-controlled by numerical data in a direction along the glass surface in accordance with the conveyance of the glass plat... | 02/23/1988 |
| 4687501 | Lightweight bending iron heat shields for glass bending molds Shields tend to retain heat while shading glass sheets from a heat source. As the shield retains more heat, it loses its effectiveness to shade the glass sheet. A second shield is positioned between the glass sheet and the hot shield to maintain effective... | 08/18/1987 |
| 4441907 | Apparatus and method for locally heating conveyed glass sheets An improved apparatus including a localized heater that moves along the direction of conveyance with conveyed glass sheets to provide localized heating of a portion of each glass sheet to be bent without heating the rest of the glass sheet prior to its su... | 04/10/1984 |
| 4343643 | Sealing articles into a glass envelope and compound holder therefor A holder (55) for supporting in alignment a plurality of spaced electrodes (18) and (19) to be sealed into a corresponding plurality of envelopes (14) includes a metal base (82) which supports a stripper plate (87). A plurality of posts (36) extend from t... | 08/10/1982 |
| 4244781 | Non-asbestos millboard composition A non-asbestos millboard refractory composition useful for the manufacture of lehr and glass tempering rolls and useful at temperatures above about 650° C. comprises on a dry weight basis 10-30 percent ceramic fiber, 0-10 percent organic fiber, 35-60 per... | 01/13/1981 |
| 4184864 | Apparatus for fabricating sharply bent glass sheets Apparatus for bending one or more glass sheets to a sharp bend by a combination of overall heating and localized heating using an outline glass sheet bending mold comprising one or more electroconductive heating elements in the form of a ribbon. Means is ... | 01/22/1980 |
| 4157254 | Method and apparatus for bending glass sheets to curved V-bends This invention relates to a method and apparatus for shaping glass sheets to V-bends along a curved line of bending.... | 06/05/1979 |
| 4077792 | Adjustable rack for supporting a glass sheet An adjustable rack for accommodating differently sized glazing units. Support elements are mounted on the rack and are formed to provide anti-friction, minimal heat conducting bearing surfaces for supporting heated glazing units thereon to facilitate slig... | 03/07/1978 |
| 4072490 | Apparatus and process for producing a gradient photochromic ophthalmic lens A gradient photochromic ophthalmic lens blank is produced by heat treating an ophthalmic lens blank composed of potentially photochromic glass at a temperature sufficient to develop photochromic properties therein, while maintaining in proximity to a port... | 02/07/1978 |
| 4072493 | Method and apparatus for reshaping glass sheets Method and apparatus for shaping one or more glass sheets by gravity sag bending to a shape including one or more sharp bends by combining overall heating and localized heating using one or more electroconductive heating ribbons and guiding means to locat... | 02/07/1978 |
| 4072492 | Glass bending lehr with pre-heat hood Energy is conserved and the quality of the bent glass product improved by pre-heating gravity sag bending molds in an open-bottomed hood overlying a bending lehr. The hood traps otherwise wasted heat rising from the bending lehr.... | 02/07/1978 |
| 4056379 | Forming V bends in glass sheets by press bending Heat-softened glass sheets may have sharp bends imparted thereto by pressing between complementary molds when preceded by localized heating along the intended line of the sharp bend. The localized heat is applied along the line by means of electrical resi... | 11/01/1977 |
| 4043784 | Shaping glass sheets Shaping glass sheets of soda-lime-silica compositions by gravity sagging into complicated shapes having a portion of convex curvature and another portion of concave curvature requires a continuous shaping surface onto which a supported glass sheet is heat... | 08/23/1977 |
| 4002450 | Method of and apparatus for bending glass sheets to relatively sharp angles A method of and apparatus for bending a flat sheet of glass to a relatively sharp angle. The apparatus includes a sectionalized, gravity mold structure provided with means for delivering electrical power to electrically conducting lines formed on the shee... | 01/11/1977 |
