Patents Represented by Attorney, Agent or Law Firm Greg Dziegielewski
  • Method and apparatus for forming glass fibers
    Patent number: 4676813
    Abstract: A feeder system for the production of glass filaments is rendered dripless or non-dripless on demand by controlling the pressure of the air in contact with the streams and beads of the orificed discharge wall. Preferably, the feeder is rendered non-dripless when the restart of filament formation from idled orifices is desired.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: June 30, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Terry J. Hanna, Neil E. Greene
  • Method and apparatus for forming glass fibers
    Patent number: 4675039
    Abstract: A feeder system for the production of glass filaments is provided with a shallow layer of molten glass over the discharge wall in combination with a flow control means adapted to regulate the depth of the layer to provide dripless and non-dripless operation as desired. Preferably, the feeder is rendered non-dripless when the restart of filament formation from the idled orifices is desired.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: June 23, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Larry J. Huey, Jerome F. Marra
  • Method and apparatus for facilitating the withdrawal of strand from wound packages
    Patent number: 4673140
    Abstract: The present invention pertains to method and apparatus for facilitating the withdrawal of strand from the interior of a wound package a strand comprising biasing a movable manifold means against a portion of the arcuate periphery of the package, the manifold means having an apertured section in contact with the package; and drawing a vacuum in the manifold means effective to retain the strands at the periphery of the package until withdrawn to facilitate the complete withdrawal of the strand from the package.
    Type: Grant
    Filed: September 18, 1986
    Date of Patent: June 16, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: David M. Boles
  • Method and apparatus for forming glass fibers
    Patent number: 4673428
    Abstract: A feeder for the production of glass filaments is provided with a shallow layer of glass over the discharge wall in combination with a fluid filled cavity capable of being pressure regulated to render the operation dripless or non-dripless as desired. Preferably, the feeder is rendered non-dripless when the restart of filament formation from idled orifices is desired.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: June 16, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Neil E. Greene, Lawrence J. Grubka, Randall E. Nyhart
  • Electrode heater
    Patent number: 4672627
    Abstract: A method and apparatus for heating the portion of an electrode protruding from a glass melting furnace is disclosed. One embodiment of the invention describes an electrical resistance heated device. A second embodiment discloses a gas and air fired infrared heater device. Both devices allow the electrode to be heated to an elevated temperature without oxidation of the electrode thereby allowing the electrode to be forced into the furnace without damage to the furnace or the electrode.
    Type: Grant
    Filed: December 19, 1985
    Date of Patent: June 9, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Charles S. Dunn
  • Internal blower for expanding cylindrical veil of mineral fibers and method of using same
    Patent number: 4670034
    Abstract: A downwardly moving cylindrical veil of mineral fibers is distributed to form a mineral fiber product by impinging on the interior of the veil jets of gas from an internal blower positioned within the veil to increase the angular velocity of the veil, thereby causing the veil tobreak up into an incoherent flow of mineral fibers.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: June 2, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Paul A. Goodridge, Roger J. Bilen, Farrokh Kaveh, David C. K. Lin
  • Method and apparatus for the production of glass filaments
    Patent number: 4662922
    Abstract: A continuous glass fiber forming system incorporates a high energy stream of fluid to establish and control induced air flow from around the feeder to (1) substantially simulate the induction of air into the filament forming region in the absence of filament attenuation like that induced during attenuation and/or (2) increase the amount of heat removal effected during attenuation of the filaments.
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: May 5, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Robert L. Hill, Douglas J. Eberle
  • Bushing balance controller and method for using same
    Patent number: 4657572
    Abstract: The bushing balance controller is an electronic device which measures the voltage drop across each segment of a multiple segment glass fiber forming bushing and measures the current flow in the bushing. The device uses these measurements to produce error signals proportional to the difference in the set point temperature and the instantaneous temperature of each segment of the bushing. The device diverts current from each segment of the bushing whose error signal is greater than the average of the error signals for all segments of the bushing. The device also sums all error signals and passes this signal to a bushing controller which adds current to the bushing when the sum of the error signals falls below a preset value.
    Type: Grant
    Filed: March 14, 1986
    Date of Patent: April 14, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Avinash J. Desai, Gerhard Kreikebaum
  • Aqueous size composition with pH regulator
    Patent number: 4656084
    Abstract: Aqueous sizing compositions for glass fibers, comprising both epoxy- and acrylyl- or methacrylyl-functional organosilanes together with fiber-forming polymer and lubricant and pH regulator in a defined amount, are particularly suitable for glass fiber reinforcement for filament winding and pultrusion applications. The use of the pH regulator in the defined amount results in a strand tensile strength of significant improvement.
    Type: Grant
    Filed: July 29, 1983
    Date of Patent: April 7, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Richard A. McCoy, Walter L. Reitter, Phra D. Lyle
  • Apparatus for packaging insulation material
    Patent number: 4653397
    Abstract: Apparatus for packaging mineral fiber insulation material includes a compression member to gradually compress the material, where the compression member contains a plurality of depressions, the downstream edge of the depressions being sloped to gradually blend with the plane of the compression surface, and the upstream edge of the depressions forming an abrupt drop from the plane of the compression surface, thereby defining an aperture at the upstream edge of the depressions for the escape of air during compression of the material, where the upstream edge is adapted to support the insulation material during the venting of the compressed air.
    Type: Grant
    Filed: July 30, 1985
    Date of Patent: March 31, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: William E. Gray, Ronald R. Harris
  • Method and apparatus for changing bushings
    Patent number: 4650508
    Abstract: An apparatus for changing bushings in a glass melting furnace is disclosed. A support attached to the furnace holds the bushings beneath an opening in the forehearth. A replacement bushing is placed in the framework, translated next to the operating bushing, brought to operating thermal condition and then both bushings are translated until the replacement bushing is beneath the opening in forehearth. This eliminates the need to freeze the molten glass within the bushing.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: March 17, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Charles S. Dunn, Stephen Seng, Michael D. Hickman
  • Apparatus for packaging loose fibrous material
    Patent number: 4640082
    Abstract: The apparatus of each embodiment includes a suction housing having a perforated duct therein. Fibrous material supplied to the inlet of the duct is compacted by air being evacuated through the perforated sidewall of the duct. The continuous compacting of fibrous material aids in moving the already compacted material out the outlet of the duct.
    Type: Grant
    Filed: March 4, 1985
    Date of Patent: February 3, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Gurdev S. Gill
  • Glass fiber size and impregnant compositions
    Patent number: 4636437
    Abstract: A coating composition substantially prevents fraying of glass fiber yarn packages. The composition is composed of an aqueous solution of a resin formed of the hydrolysis product of a copolymer of vinyl aromatic monomer and maleic anhydride, an organo silane glass fiber anchoring agent and an effective amount of a water-soluble pyrrolidone-containing polymer sufficient to form a protective film over the glass fiber.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: January 13, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Donald J. Algrim, Donn R. Vermilion, Donald J. Hammond, Richard M. Haines
  • Method and apparatus for making non-circular mineral fibers
    Patent number: 4636234
    Abstract: A method and appartus for making non-circular mineral fibers, and the fibers produced thereby, comprises flowing a stream from a body of molten mineral material through a non-circular orifice, and quenching the mineral material in the stream to form a mineral fiber having a non-circular cross-section.
    Type: Grant
    Filed: February 14, 1986
    Date of Patent: January 13, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Larry J. Huey, Paul D. Beuther
  • Method and apparatus for producing mineral fibers
    Patent number: 4627868
    Abstract: An apparatus for fiberizing molten mineral material is disclosed. The apparatus includes a spinner to fiberize the material into fibers, a high velocity blower to attenuate the fibers, an air gap between the spinner and the high velocity blower through which ambient air is drawn and a flow controller over a portion of the air gap to redirect flow of the ambient air.
    Type: Grant
    Filed: August 19, 1985
    Date of Patent: December 9, 1986
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Farrokh Kaveh
  • Method of making glass fiber forming feeders
    Patent number: 4627864
    Abstract: A method of making an orificed discharge wall for supplying a plurality of streams of molten glass to be attenuated into filaments is provided comprising inserting elements in apertures in a member; positioning said elements and member within a thin walled elastomeric sheath adapted to isostatically transmit pressure to said elements and member; applying isostatic pressure to the sheathed elements and member to mechanically seal the elements to the member; and fusing the mechanically sealed elements and member together to prevent the unwanted passage of molten glass between said elements and said member, said elements having an orifice to permit the passage of molten glass therethrough to establish said streams.
    Type: Grant
    Filed: August 9, 1984
    Date of Patent: December 9, 1986
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Mohinder S. Bhatti
  • Fibrous pack drying method and apparatus
    Patent number: 4625433
    Abstract: Apparatus is disclosed for introducing a gas into a porous pack the apparatus comprising gas injection means for introducing a gas into the pack, a conveyor for moving the pack into superimposed position to the gas injection means and for deflecting the gas out of the pack between the gas injection means.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: December 2, 1986
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Dean L. Giancola, Craig D. Kowalski, Frederic H. Paetz
  • Method and apparatus for forming glass fibers
    Patent number: 4624693
    Abstract: A feeder for the production of glass filaments is provided with a mechanical valve means to render the operation dripless or non-dripless, as desired. Preferably, the feeder is rendered non-dripless when the restart of filament formation from idle orifices is desired.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: November 25, 1986
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Jerome F. Marra, William M. Babbitt
  • Method and apparatus for making non-circular mineral fibers
    Patent number: 4622054
    Abstract: A method and apparatus for making non-circular mineral fibers, and the fibers produced thereby, comprises flowing a stream from a body of molten mineral material through a non-circular orifice, and quenching the mineral material in the stream to form a mineral fiber having a non-circular cross-section.
    Type: Grant
    Filed: February 14, 1986
    Date of Patent: November 11, 1986
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Larry J. Huey, Paul D. Beuther
  • Method for making coalesced mineral fibers
    Patent number: 4620859
    Abstract: A method for making mineral fibers comprising discharging molten glass as primary molten streams from orifices and joining at least one primary stream to an adjacent primary stream to form a coalesced stream of different cross-sectional shape from that of the orifices, and hardening the coalesced stream into a glass fiber having a cross-sectional shape similar to the shape of the coalesced stream.
    Type: Grant
    Filed: February 14, 1986
    Date of Patent: November 4, 1986
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: David C. K. Lin, Larry J. Huey, Farrokh Kaveh