Other

Ocv Intellectual Capital, LLC

Owens Corning Intellectual Capital, LLC

The Boc Grpoup, Inc.

Owens Corning

David J Baker

Harry P Adams

Richard A Baker, Jr

Byron Bemis

William Wyatt Toth

Peter Bernard McGinnis

Douglas Alan Hofmann

Bruno Andre Purnode

Christopher Q Jian

John W Wingert

William W Toth

John R LeBlanc

William L Streicher

Patrick John Prescott

Shivakumar Kadur

Steve Mighton

John R Leblanc

Rifat M Khalil Alchalabi

James K Hayward

A method of forming high strength glass fibers in a glass melter substantially free of platinum or other noble metal materials, products made there from and batch compositions suited for use in the method are disclosed. One glass composition for use in the present invention includes 50-75 weight % SiO, 13-30 weight % AlO, 5-20 weight % MgO, 0-10 weight % CaO, 0 to 5 weight % RO where RO is the sum of LiO, NaO and KO, has a higher fiberizing temperature, e.g. 2400-2900&#xb0; F. (1316-1593&#xb0; C.) and/or a liquidus temperature that is below the fiberizing temperature by as little as 45&#xb0; F. (25&#xb0; C.). Another glass composition for use in the method of the present invention is up to about 64-75 weight percent SiO, 16-24 weight percent AlO, 8-12 weight percent MgO and 0.25-3 weight percent RO, where RO equals the sum of LiO, NaO and KO, has a fiberizing temperature less than about 2650&#xb0; F. (1454&#xb0; C.), and a &#x394;T of at least 80&#xb0; F. (45&#xb0; C.). A forehearth for transporting molten glass from the glass melter to a forming position is disclosed. By using furnaces and/or forehearths substantially free of platinum or other noble metal materials, the cost of production of glass fibers is significantly reduced in comparison with the cost of fibers produced using a melting furnace lined with noble metal materials. High strength composite articles including the high strength glass fibers are also disclosed.

Method of manufacturing high strength glass fibers in a direct melt operation and products formed there from

A device for projecting images from a video generating device such as a computer, television receiver, or similar device onto a screen or other surface is described in this invention. The device uses a rotating disk containing numerous lenses to direct a light beam from a laser or other light source towards the screen. In one embodiment, a pulsed laser light from red, green, and blue lasers are combined into a single light pulse that is transmitted through the rotating disk that transmit each light pulse to a specific location on the screen.

Wave based light beam delivery system

A method of forming high strength glass fibers in a continuous system is provided. The method includes supplying a glass batch to a glass melting furnace lined with a material substantially free of noble metals. The glass batch comprises about 50-about 75 weight percent SiO, about 15-about 30 weight percent Al2O3, about 5-about 20 weight percent MgO, about 0-about 10 weight percent CaO, about 0.25-about 5 weigh percent RO. The method further includes melting the glass batch in the furnace and forming a pool of molten glass in contact with the furnace glass contact surface, transporting the molten glass from the furnace to the bushing using a forehearth that is at least partially lined with a material substantially free of noble metal materials, discharging the molten glass from the forehearth into the bushing; and forming the molten glass into continuous fibers.

Method of manufacturing S-glass fibers in a direct melt operation and products formed therefrom

Laser projection system

A small device for projecting images from a video generating device such as a computer, television receiver, or similar device onto a screen or other surface is described in this invention. The device is the size of the pen, and converts video instructions using a processing unit and memory into light signals that are projected. In the one embodiment, the device uses pulsed laser light from red, green, and blue lasers that are combined into a single light pulse that is transmitted through a rotating disk containing numerous lenses that transmit each light pulse to a specific location on the screen.

Projector pen

Methods and apparatus for refining and delivering a supply of molten glass include melting a supply of glass in a melter and discharging a stream of molten glass. A refining section is provided to refine the molten glass discharged by the melter and to deliver the molten glass downstream to a glass forming apparatus. The refining section is mounted for movement into and out of contact with the stream of molten glass to connect and disconnect the glass forming apparatus with the stream of molten glass.

Molten glass delivery and refining system

Rotating disk of lenses

Forehearths that create a substantially homogeneous temperature to molten glass forming materials across the end position are provided. A gas cavity, a weir, a refractory block, or a heating element in the forehearth may be utilized to reduce a temperature gradient of molten glass forming materials across the end position. Reducing the temperature difference of the molten glass forming material across the end position permits for improved chemical and physical properties of the glass fibers and the end products formed from the glass fibers. In addition, a reduction in the temperature gradient across the end position produces a more homogenous glass fiber and glass product. Further, a reduction in the shear break rate occurs when the molten glass forming material has a temperature that is substantially the same across the end position, which results in a reduction in the breakage of glass fibers and an increase in manufacturing efficiency.

Apparatuses for controlling the temperature of glass forming materials in forehearths

Light beam delivery system

A front end for a glass forming operation comprises an open channel and at least one burner. The channel has at least one surface. The surface has at least one hole therein. The burner is oriented in the hole at an acute angle relative to the surface. In another embodiment of the invention, the channel has a top and a pair of sidewalls each having a surface. At least one hole is in at least one of the surfaces. The hole is at an acute angle relative to at least one surface. The burner is an oxygen-fired burner. In yet another embodiment of the invention, the top and sidewalls each have a super structure surface constructed of refractory material. The channel has an upstream end and a downstream end. At least one of the surfaces has a plurality of holes therein. The burners extend at an acute angle relative to at least one surface and in a plane extending between the upstream end and the downstream end and perpendicular to at least one surface. Oxygen-fired burners extend axially through corresponding holes.

Oxygen-fired front end for glass forming operation

A glass-melting furnace () has an upstream end (), a downstream end (), and a roof (). The upstream end is positioned upstream of the downstream end. A charger () is provided to supply glass-forming material () to the upstream end of the furnace. At least one burner () is provided to supply heat to the glass-forming material at the upstream end of the furnace. An exhaust () is in communication with the downstream end of the furnace, with the exhaust being positioned downstream of the at least one burner.

Exhaust positioned at the downstream end of a glass melting furnace

A front end for a glass forming operation including an open channel and at least one burner. The channel surface has at least one burner port and a burner oriented in the burner port at an acute angle relative to the channel surface. The surface may be a top, side or end wall and the burner port is at an acute angle relative to the surface of the wall.

Low heat capacity gas oxy fired burner

Briefly, according to the present invention there is provided a refractory lined glass melter for producing refined glass from raw glass-forming material using at least one oxygen-fuel burner recessed within a burner block mounted in the roof of the furnace and a process of using the burner. The velocities of the gaseous fuel and of the oxygen from the oxygen-fuel burner are controlled such that the velocities of the gaseous fuel and the oxygen are substantially equivalent to provide a generally laminar gaseous fuel and oxygen flow to combust proximate a top surface of the raw glass-forming material and produce a flame which impinges the surface of the raw glass-forming material and which has a middle portion of a columnar shape.

Growing community of inventors

Newark, OH, United States of America

David J Baker