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Class 65/285 - To reshape preform by flame pressure or gravity


Subclass of Class 65 - Glass manufacturing
Definition: Apparatus wherein a preform supporting means holds a heat
No. of patents: 34
Last issue date: 01/10/2006


NumberTitleIssue Date
6983624Apparatus 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
6843074Apparatus having a curved roller for bending a glass sheet
A glass sheet is heated to a forming temperature in a heating furnace, the heated glass sheet is conveyed along a conveying plane defined by a plurality of rollers of a roller conveyer, and is moved up and down on the rollers according to the position of the glass s...
01/18/2005
6357263Method for bending a glass sheet, a ring mold for bending a glass sheet, and apparatus using the ring mold
In bending a glass sheet, the load applied to an intermediate glass sheet can be equalized to improve the quality of a final glass sheet. For this purpose, a forming ring 1 comprises a first forming frame 15 and a second forming frame 16, and the swingabl...
03/19/2002
6016669Pulsed fuel-oxygen burner and method for rotatable workpieces
An apparatus for applying heat to a rotatable workpiece is disclosed. A rotating lathe is provided for mounting a workpiece, for example a quartz tube, thereto so as to enable rotation of the workpiece. At least one translatable burner is coupled to a fue...
01/25/2000
5992180Method and apparatus for bend-shaping a glass plate
A glass plate is heated in a heating furnace and is bend-shaped to be a complexly curved glass plate while the glass plate is passed on curved rollers wherein support pads of a pushing mechanism push the complexly curved glass plate from an upstream side ...
11/30/1999
5820650Optical processing apparatus and optical processing method
A glass substrate is positioned between a chamber with a reduced pressure and a chamber filled with a heated helium, and the glass substrate is forcibly bent by the pressure difference and the heated helium gas into a uniform shape. The irradiation of las...
10/13/1998
5656052Apparatus 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
5573566Method of making a quartz dome reactor chamber
A method of making a quartz dome for a reactor chamber from a substantially flat quartz disk. The quartz disk is placed on a graphite ring which is rotated. The quartz disk is heated until the disk is softened slightly and it begins to slump. The softened...
11/12/1996
5472469Method of bending glass sheets
A method and a furnace for bending glass sheets. Glass sheets are heated to a bending temperature by supporting them on a mould (11) and carrying them from one heating station to another. In a bending station (4), the glass sheet is heated for effecting a...
12/05/1995
5437704Method and furnace for bending glass sheets
The invention relates to a method and a furnace for bending glass sheets. Glass sheets supported on ring molds are heated to a bending temperature and are carried from one heating station to another. In a heating and bending station, the glass sheet is he...
08/01/1995
5281249Reshaping a glass lens blank suspended on a flow of gas
A method and apparatus for imparting a predetermined contour to an ophthalmic glass lens. The method comprises positioning a forming manifold in the base of a reshaping chamber, the upper surface of the manifold having a surface contour that is the revers...
01/25/1994
4869745Apparatus for forming micropipette of controlled configuration by moving the point of heat application
The micropipette puller of this invention includes a pair of gripping jaws that pull a length of glass tubing in opposite directions. The source of heat is a laser and a beam is directed into a beam directing means, such as a lens or mirror, to refract or...
09/26/1989
4867776Apparatus for and method of forming integral lenses on optical fibers
Apparatus and method for forming an integral structure, such as a lens, on a fiber, such as an optical fiber, which includes a device which imparts centrifugal force to an end of the fiber while the end of the fiber is being heated. An arc or heat source ...
09/19/1989
4842628Method of verifying a porous article made out of glass soot and furnace for carrying out the method
A method of vitrifying a porous cylindrical article made out of glass soot, especially for manufacturing a preliminary blank for optical fibers. The article is heat-treated in a furnace in a vacuum or in an atmosphere that contains helium. The porous arti...
06/27/1989
4813995Manufacturing containers out of glass
In an apparatus for manufacturing containers out of glass, a parison is formed from a gob of molten glass and is transferred to a mould having a cavity in the shape of the required container. Instead of the conventional blowing operation, the parison with...
03/21/1989
4755204Manufacture of curved glass sheets
Curved glass is maufactured by supporting glass on a sag bending mould which is passed through a furnace. During initial heating of the glass on the mould, hot air is directed around the mould beneath the glass to minimize the temperature difference betwe...
07/05/1988
4705551Test tube making and end coating
A machine for making and painting test tubes by painting open-ended tubes and then fusing and severing them to form individual test tubes. Substitutable paint applicators varying in width, adjustable in location relative to the open-ended tubes, apply paint th...
11/10/1987
4626269Automated system for sealing a mount in a cathode-ray tube
A system for sealing a mount in a cathode-ray tube using first and second tiers of burners includes a first valve in an oxygen supply line and a third valve in a fuel supply line connected to the first tier, and a second valve in the oxygen supply line an...
12/02/1986
4618355Method and apparatus for sealing a mount in a cathode ray tube
A method for sealing a mount including a wafer in a neck of a stationary cathode-ray tube comprises positioning a first tier of burner tips completely around the neck such that the burner tips are aimed nonradially along directions tangent to a first circ...
10/21/1986
4589902Apparatus for sealing a mount in a cathode-ray tube
Apparatus for sealing a mount including a wafer into a neck of a cathode-ray tube oriented along an axis comprises two tiers of burner tips. The first tier is disposed completely around the axis at a first distance therefrom and similarly aimed nonradiall...
05/20/1986
4530712Pipette puller
A pipette puller is provided for drawing glass or quartz tubing into micropipettes. A fixed clamp and movable clamp are utilized and between the clamps a furnace is provided which has an opposing pair of elongated heating elements. The heating elements ar...
07/23/1985
4502878Tubulating device and method of tubulation
An apparatus and method for tubulating a glass barrel including a glass lathe with the tubing in one chuck and a barrel holding device in the other chuck having a pair of spring members to engage the openings of the barrel and hermetically seal the barrel...
03/05/1985
4465501Apparatus for aseptic and antiparticulate opening of sealed glass containers
According to the method of aseptic and antiparticulate opening of a sealed glass ampul, one end of the ampul is submitted to a powerful thermal flux produced by flame tongue generating sources on a very localized zone for a time period sufficient to obtai...
08/14/1984
4372773Method for making ink jet writing devices
A method is disclosed for making capillary glass liners for use in ink jet writing devices. The capillary glass blanks are suspended within a heating coil which melts the glass locally so that the blank stretches to form two well defined jet liner nozzles...
02/08/1983
4272274Slotted glass sheet shaping mold
This invention relates to shaping glass sheets and particularly to a mold capable of shaping glass sheets having many different outline shapes but bent to the same radius of curvature. Such molds have dimensions larger than those of a family of windows of...
06/09/1981
4204854Apparatus and method for bending glass sheets
Apparatus and a method disclosed for use in bending heated sheets of glass (G) transported generally horizontally on a conveyor (16) within a furnace heating chamber incorporate a holder (20) located above the conveyor in a spaced relationship such that a...
05/27/1980
4203754Apparatus for bending glass sheets
An improved glass bending device is disclosed for bending and conveying glass sheets. The glass bending device includes a rod having a curved portion, a rotary tubular member engaged about the rod, and a plurality of rings disposed between the rod and the...
05/20/1980
4193785Glass sheet bending mold apparatus
Apparatus for forming relatively sharp angled bends in a flat sheet of glass including a sectionalized gravity mold supported on a frame having electrically conducting means thereon including a plurality of bus bars mounted on one of the end members of th...
03/18/1980
4184864Apparatus 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
4123246Shaping and quenching glass sheets by roll forming using transition quench rolls
This invention relates to shaping and quenching glass sheets by roll forming to either simple or compound curvatures comprising a longitudinal component of curvature about an axis of bending transverse to a path of movement by a controlled, repeatable pro...
10/31/1978
4077791Electrical contact apparatus on a glass sheet gravity mold
An apparatus for forming relatively sharp angled bends in a flat sheet of glass including a sectionalized gravity mold structure having electrical conducting means terminating in improved contact assemblies engageable with electrically conducting frit lin...
03/07/1978
4054438Method and apparatus for curving sheets in the plastic state
The sheet to be curved, such as glass at a softening temperature, is advanced on a fixed curved bed formed by a series of curved rods having angles of inclination which provide the bed with an increasing curvature profile. The edges of the sheet gradually...
10/18/1977
4054437Method and apparatus for curving sheets of glass and the like
The sheet to be curved, such as glass at a softening temperature, is advanced on a fixed curved bed formed by a series of curved rods having different angles of inclination to form an ascending convex bed with an increasing curvature profile. The sheet is...
10/18/1977
4028086Apparatus for bending and tempering glass sheets by differential cooling
An apparatus for bending and tempering heat-softened glass sheets by differentially cooling the opposite surfaces of the sheets to warp or bow the sheets to desired curvatures. The sheets are conveyed through the tempering section by a series of upper and...
06/07/1977
 
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