Class 65/502 - With multiple crucible or multichamber system

Subclass of Class 65 - Glass manufacturing
Definition: Apparatus having (a) at least two melting containers or
No. of patents: 36
Last issue date: 08/07/2007

Number	Title	Issue Date
7251959	Washwater neutralization system for glass forming line A neutralization system for controlling the pH of the washwater used to clean and maintain polyacrylic bound glass forming equipment. The neutralization system introduces a base solution to a washwater solution when the pH of the washwater solution contained in a cl...	08/07/2007
7197899	Multi heating zone apparatus and process for making core/clad glass fibers A process includes the steps of disposing a solid core glass rod at a point removed from hot temperature that can cause crystallization in the core glass rod, disposing a solid clad glass rod at a point removed from the core glass rod; softening to the flowing condi...	04/03/2007
7185517	Double crucible for a glass drawing method and method of making glass fiber or a preform with the double crucible The double crucible for a glass drawing method has a heatable outer crucible (1) and an inner crucible (2) surrounded by the outer crucible (1), which is heatable separately from the outer crucible (1). Both crucibles (1,2) have an...	03/06/2007
7082791	Apparatus for fabricating soot preform for optical fiber An apparatus for fabricating a soot preform for an optical fiber. The soot preform is fabricated by depositing glass particles on a starting rod capable of being rotated and pulled up. The apparatus comprises elements as follows. A reaction chamber is used for depos...	08/01/2006
7003987	Hybrid spinner for making a mixture of single-glass and dual-glass fibres right at the fibre forming stage A spinner is adapted to produce a dual glass curly fiber component and a single straight glass fiber component insulation product. The spinner includes a plurality of horizontal channels within the spinner peripheral wall. The channels separate two molten glasses of...	02/28/2006
6647747	Multifunctional apparatus for manufacturing mineral basalt fibers The invention discloses a multifunctional apparatus and method to manufacture mineral (basalt) fibers to be drawn/attenuated into a continuous strand made from natural rock basalts with and without supplemental minerals. More specifically this invention d...	11/18/2003
6550279	Process for drawing optical fiber from a multiple crucible apparatus with a thermal gradient The disclosed invention includes a method of making an optical fiber drawn from a multiple crucible. The method includes moving a first crucible of the multiple crucible relative to a second crucible of the multiple crucible. The invention also includes m...	04/22/2003
6526782	Multi heating zone apparatus and process for making core/clad glass fibers This invention pertains to apparatus and process for making core/clad glass fibers. The apparatus includes a central tube or receptacle connected at the top to a pressure controller and terminating in a reduced section; a side tube or receptacle positione...	03/04/2003
6167729	Fiber manufacturing spinner A spinner is adapted to be fixed at one end of a rotatable shaft in a fiberizer, the spinner including a radial wall extending radially out from the shaft and having an upper surface, a dam separating the upper surface into an inner portion and an outer p...	01/02/2001
6125660	Method for manufacturing mineral fibres The invention relates to a process for the manufacture of, in particular, continuous mineral fibers from rock, glass-containing technical wastes, technical glass wastes, and to an apparatus. The object of the invention is to create a process which enables...	10/03/2000
6065310	High throughput glass fiberizing system and process This invention relates to a high throughput glass fiber production system and process to provide optimum glass delivery to the glass fiberizing bushing and enhanced glass production of textile fibers or filaments of glass. The fiberizing system includes d...	05/23/2000
6062047	Device for manufacturing a rod of a material having a cross-sectional composition gradient The material is in a fluid state at a predetermined temperature above the ambient temperature. According to the invention: a) at least two different compositions of this material in the fluid state are prepared; b) simultaneously and concentrically both t...	05/16/2000
6021649	Apparatus for making optical fibers from core and cladding glass rods with two coaxial molten glass flows A core/clad glass optical fiber is made by melting a core glass rod and a adding glass rod in separate crucibles which are not concentric with respect to each other and the respective core and cladding glass melts passed out of contact with each other to ...	02/08/2000
6012305	Apparatus for producing an optical fiber porous glass preform An apparatus for producing an optical fiber porous glass preform using the VAD method which can stably produce a high quality optical fiber porous glass preform, wherein a target bar is only rotatably supported by a chuck and is not pulled upward, a lower...	01/11/2000
5979191	Method and apparatus for melting of glass batch materials An apparatus for melting materials is provided comprising a melter body having a batch injection portion including a batch inlet port, a batch melting portion including a batch melting chamber adapted to receive materials from said batch injection portion...	11/09/1999
5928402	Multi-screen system for mixing glass flow in a glass bushing A multi-screen mixing apparatus for installation in a fiber-forming bushing used in the manufacture of glass fibers. The multi-screen mixer attaches to the walls of the bushing, and includes a first screen having openings therein through which the glass f...	07/27/1999
5900036	Multi-cylinder apparatus for making optical fibers, process and product A vertically disposed apparatus used to make core-clad optical fibers inces an inner elongated cylinder removably closed at the top and provided at the bottom with an inner exit port of a smaller diameter than the inner cylinder and an outer cylinder, di...	05/04/1999
5879426	Process for making optical fibers from core and cladding glass rods A core/clad glass optical fiber is made by melting a core glass rod and a adding glass rod in separate crucibles which are not intersecting with respect to each other and the respective core and cladding glass melts passed out of contact with each other t...	03/09/1999
5855640	Apparatus for delivering a coated glass stream for forming charges of glass A method for delivering a coated glass stream having a first inner layer and a second outer layer wherein the method includes providing a vertical orifice, delivering molten glass from a first source through the orifice, providing a gap about the orifice ...	01/05/1999
5779760	Fiber manufacturing spinner A spinner is adapted to be fixed at one end of a rotatable shaft in a fiberizer, the spinner including a radial wall extending radially out from the shaft and having an upper surface, a dam separating the upper surface into an inner portion and an outer p...	07/14/1998
5709728	Method and device for the production of mineral wool by using mineral wool waste as recycled starting material The melting tub for producing the molten mass from a mixture of raw material is associated with an additional melting unit by means of which a recycled molten mass is obtained from mineral wool waste largely corresponding to the molten mass obtained from ...	01/20/1998
5639291	Method of and apparatus for forming composite and other fibers In a method of and an apparatus for forming composite and other fibers, individual filaments from two or more sets of continuous primary filaments of two or more heat-softenable fiberizable materials are brought together lengthwise to form pairs of contin...	06/17/1997
5618328	Spinner for manufacturing dual-component fibers Apparatus for making dual component fibers is provided and includes a spinner having a peripheral wall. The spinner includes orifices located on the peripheral wall thereof for centrifuging the dual component fibers, with the spinner being divided into a ...	04/08/1997
5582841	Fiber manufacturing spinner and fiberizer A fiber manufacturing apparatus including a spinner, fixed to one end of a rotatable shaft and equipment for supplying at least one molten thermoplastic material to the spinner is provided. The spinner includes a radial wall and an outer peripheral wall. ...	12/10/1996
5529596	Method for making dual-glass fibers by causing one glass to flow around another glass as they are spun from a rotating spinner A method for making dual-glass fibers includes supplying first and second molten glass to a rotating spinner having an orificed peripheral wall, where the first glass has a higher viscosity than that of the second glass, centrifuging the first and second ...	06/25/1996
5514199	Spinner for producing dual component fibers An apparatus for making dual component fibers is provided and includes a distributor having orifices in the peripheral wall and nested within a rotary spinner. The distributor is divided into a series of generally vertically-aligned compartments by baffle...	05/07/1996
5509953	Spinner for manufacturing dual-component fibers An apparatus for making dual component fibers is provided and includes a spinner having peripheral and bottom walls. The spinner includes orifices located on the peripheral wall thereof for centrifuging the dual component fibers, with the spinner being di...	04/23/1996
5482527	Spinner apparatus for producing dual component fibers An apparatus is provided for making dual component fibers. The apparatus comprises a distributor, equipment for providing first and second thermoplastic materials to the distributor, a rotatable spinner and a rotation mechanism. The distributor has an out...	01/09/1996
5474590	Spinner for manufacturing dual-component fibers having an angled array of orifices Apparatus for making dual component fibers is provided and includes a spinner having a peripheral wall. The spinner includes orifices located on the peripheral wall thereof for centrifuging the dual component fibers, with the spinner being divided into a ...	12/12/1995
5468275	Apparatus having elongated orifices for centrifuging dual-component, curly, glass fibers Apparatus for making dual-component thermoplastic fibers, such as glass fibers, comprises a spinner having an orificed peripheral wall for centrifuging fibers from thermoplastic material, the spinner having vertically aligned compartments with first and s...	11/21/1995
5106400	Casting core/clad glass preforms method and apparatus Disclosed is a method of forming a glass preform from core and cladding glasses having low liquidus viscosities and narrow working ranges. A tube of liquid core glass is vertically situated in a vessel of liquid cladding glass. The tube extends to the bot...	04/21/1992
5073183	Hydraulically operated blanket batch charger A blanket charger for feeding raw batch material into a glass making furnace, particularly an end fired, sidewall fed type furnace. The charger has a main support frame with a raw batch hopper chute thereon and a reciprocable charger plate positioned unde...	12/17/1991
4624692	Apparatus for the continuous production of optical fibres The apparatus allows the continuous production of optical fibres (15) starting from liquid-phase reactants. They are injected into a pressurized vertical vessel (3), comprising a second coaxial vessel (4), which can be vertically displaced for the variati...	11/25/1986
4259100	Double crucible system for the production of light conducting fibers A double crucible system is disclosed for the production of light conducting fibers. The system has an interior crucible which can be axially displaced in relation to the exterior crucible which is concentric thereto. The spacing of the crucible jets in t...	03/31/1981
4193782	Device for drawing a group of cladded light conducting fibers A device for drawing a plurality of cladded light conducting fibers utilizing a double crucible having an inner crucible and an outer crucible with each of the crucibles having a bottom and receiving a melt of the respective material, and having nozzle pa...	03/18/1980
4145200	Production of optical glass fibers In a method for producing optical glass fibers which comprises co-spinning glass melts of different kinds through coaxially disposed discharge nozzles of a multimember crucible composed of two or more crucible members having a discharge nozzle at their bo...	03/20/1979

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Class 65/502 - With multiple crucible or multichamber system