Class 65/116 - Quenching in liquid bath

Subclass of Class 65 - Glass manufacturing
Definition: Processes in which the tempering is effected by contacting
No. of patents: 34
Last issue date: 04/08/2008

Number	Title	Issue Date
7354526	Processing method for glass substrate, processed glass product and stress applying apparatus A processing method for glass substrate of the present invention includes: applying heat and external force to a glass substrate and then cooling it down to thereby form a compression stressed part having a different etching rate from that of other parts with respec...	04/08/2008
6974593	Insoluble drug delivery Particles of water insoluble biologically active compounds, particularly water-insoluble drugs, with an average size of 100 nm to about 300 nm, are prepared by dissolving the compound in a solution then spraying the solution into compressed gaz, liquid or supercriti...	12/13/2005
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 The molten material is rapidly cooled as withdrawn causing thermal fracture which is followed by m...	07/27/1999
5910620	Fire-rated glass and method for making same A fire-rated glass 28 is comprised of a low-E glass which has been subject to a supertempering treatment....	06/08/1999
5772717	Tempering method using a two phase flow of cryogen A method of tempering an article is disclosed in which an article is heated so that the material making up the article is in an essentially stress-free state and the article thereafter is quenched and cooled. At the conclusion of the quenching, a stress p...	06/30/1998
5491708	Integrated optic laser A laser waveguide medium is provided comprising: a laser glass substrate wherein the substrate is a glass comprising (on an oxide composition basis): ______________________________________ Mole % ______________________________________ ...	02/13/1996
5125944	Process for producing buried wave guide device A buried wave guide device is produced by immersing a phosphate glass containing exchangeable ions in a molten salt. Ions are exchanged from the phosphate glass to give a wave guide whose refractive index increases sharply from a first surface to a maximu...	06/30/1992
5078772	Process for producing buried waveguide device A buried wave guide device is produced by immersing a phosphate glass containing exchangeable ions in a molten salt. Ions are exchanged from the phosphate glass to give a wave guide whose refractive index increases sharply from a first surface to a maximu...	01/07/1992
4883523	Avoidance of surface deterioration of glass during strengthening processes Processes in which glass parts are strengthened by ion exchange with cations in a molten salt bath are improved by removal of the small amounts of moisture and other forms of the hydroxyl group present in the salt melt by either chemical or electrolytic m...	11/28/1989
4875920	Ion-exchangeable phosphate glass compositions and strengthened optical quality glass articles Ion-exchangeable phosphate glass compositions containing in mole percent from about 50 to 70% P2 O5, from about 5 to 30 % Li2 O, from about 5 to 25% MO, where M is selected from the group consisting of Be, Mg, Ca, Sr, Ba, ...	10/24/1989
4846868	Chemically strengthened glass article and method of producing same A glass article made of a glass, in which the content of a principal alkali metal ion is distinctly higher than the content of any other alkali metal ion optionally contained in the glass, is highly strengthened by first treating the glass article with a ...	07/11/1989
4844724	Method of adjusting refractive index distribution lenses The refractive index distribution in refractive index distribution lenses may be adjusted to better approach an ideal by heating the refractive index distribution lens. When the refractive index distribution lens was created by diffusion of refractive ind...	07/04/1989
4636439	Non-glare coated glass An alkali silicate non-glare coating is disclosed which has improved optical properties, specially resistance to haze, as a result of acid treatment which removes excess alkali from the coating....	01/13/1987
4578102	Quenching or tempering by means of a two-phase jet The invention relates to thermal quenching or tempering of glass by means of a gaseous jet directed by nozzles. According to the inventive method, the nozzles are supplied with gas and liquid under a pressure which enables the jet velocity attained at the ...	03/25/1986
4576622	Manufacture of preforms for energy transmitting fibers The invention relates to a glass lathe for producing preforms which may be drawn into energy transmitting fibers. The apparatus includes a head stock and a tail stock for rotatably holding a starter tube and the preform as it is built from the starter tub...	03/18/1986
4516999	Process for the thermal tempering of glass A process for the thermal tempering of glass wherein the hot glass is immersed in a vessel in which there are two mutually immiscible liquids. The liquid of lower density is above the liquid of higher density. The glass is precooled for a specific time in...	05/14/1985
4400193	Method of thermal toughening of glass in a fluidized bed Glass is heated to a temperature above its strain point and is thermally toughened by chilling with a quiescent gas-filuidized particulate material which has gas-generating properties and a mean particle size in the range 30 μm to 120 μm, a particle siz...	08/23/1983
4372774	Thermal treatment of glass The thermal treatment of glass is effected by contacting the glass, when it is hot, with a gas-fluidized mixture of particulate materials, at least one of which is selected to have gas-generating properties when heated by the hot glass. The materials are ...	02/08/1983
4361433	Method of bending a glass sheet A method of handling a glass part to be treated and shaped in a hot liquid bath of a composition having a melting point greater than ambient temperature comprises the steps of: placing at least one glass part on at least one flexible porous member suspend...	11/30/1982
4350722	Hollow glass article with improved optical finish A hollow glass article having an improved optical finish which is formed by placing a molten material in the original article while it is constrained in a mold. The molten material softens the glass and produces a hydrostatic pressure which reforms the ar...	09/21/1982
4289520	Method and apparatus for bending glass sheets A method for bending glass sheets is provided wherein glass is heated just to the softening point in a molten salt bath, then mechanically forced around a cylindrical or conical form using a forming member which hinges to follow the glass sheet onto the f...	09/15/1981
4134746	Method of strengthening glass articles This invention is directed to a process for strengthening glass articles and, in particular, glass containers such as beer bottles. The invention is directed to a process whereby the article is sprayed over its surface with a solution containing potassium...	01/16/1979
4133665	Hydration of silicate glasses in alcohol-water solutions The present invention is concerned with the production of sodium and/or potassium hydrosilicate glass bodies. The basis of the invention resides in the hydration of anhydrous sodium and/or potassium silicate glass bodies in aqueous alcohol solutions to im...	01/09/1979
4130407	Strengthening of glass Glass is strengthened against failure under tension by treating the glass with a combination of straight chain, saturated, terminal monocarboxyl fatty acid plus the salt of an alkali metal or an alkaline-earth metal, both dissolved in an inert carrier and...	12/19/1978
4081254	Method of tempering glass product In a method of tempering glass product by a heat treatment of quenching the glass heated at higher than a strain point and lower than a softening point, by dipping it into a liquid coolant, the tempering operation is carried out under applying ultrasonic ...	03/28/1978
4066430	Method of tempering in a fluidized quenching medium Heated articles may be rapidly and uniformly quenched in a fluidized bed of a dispersion of water and hydrophobic colloidal silica....	01/03/1978
4065284	Method of tempering glass sheets of unequal thickness Glass sheets of unequal thickness are tempered sequentially on one tempering line by employing a lightweight heating furnace within which each glass sheet may be brought up to a thermal condition suitable for tempering by a two-stage heating cycle which d...	12/27/1977
4033743	Chemically polished polycrystalline alumina material Increased optical transmission is provided for a body of light transmissive polycrystalline alumina body treated at elevated temperatures with a molten flux composition. A tube of the flux polished material which can be used as the light transmissive enve...	07/05/1977
4006002	Glass sheet transfer apparatus A sheet handling apparatus including means in the form of support feet for "catching" or receiving the bottom edge of a vertically descending sheet upon the release of the upper portion of the glass from gripping tongs which initially support the sheet in...	02/01/1977
4002446	Glass bead forming method Spherical regularity of glass beads is improved by catching a falling stream of hot beads in a bath of liquid quenching medium having a relatively low heat transfer coefficient controlled by maintaining a relatively high viscosity....	01/11/1977
3997310	Method and apparatus for forming glass beads Glass beads are formed with a high rate of production by jetting an array of molten glass streams arranged around a central zone. The beads which are formed are caught in a quench bath, where they are immediately dispersed by a high-velocity radial stream...	12/14/1976
3973942	Method of moulding and tempering glass articles A glass article is moulded by supplying a gob of molten glass to a mould, regulating the temperature of the mould and the time of closure of the mould so that when moulding is complete the surface viscosity of the glass is at mmost 1010.5 poise...	08/10/1976
3955955	Glass toughening methods A hot glass sheet, which may have been bent to a suitable shape for use in the manufacture of a vehicle window, is heated prior to quenching in a chilling medium such as a chilling liquid, in such a way that the edge of the sheet which first contacts the ...	05/11/1976
3930830	Method for producing glass articles A method for forming a glass article of a devitrifiable glass having an optimum working temperature in the vicinity of its liquidus temperature, wherein the temperature of the molten glass is, during the molding operation, maintained at considerably highe...	01/06/1976

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Class 65/116 - Quenching in liquid bath