Patents Assigned to Owens-Corning Fiberglas Corporation
  • Size composition
    Patent number: 4694034
    Abstract: Chrome-free aqueous size compositions containing quanternary salts reduce fuzz and fly in glass fiber gun roving. The roving particularly achieves a desirable ease and completeness of chopping in conventional chopping and spraying equipment for molding operations.
    Type: Grant
    Filed: May 29, 1986
    Date of Patent: September 15, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: David F. Lewin
  • Coating grade asphalt
    Patent number: 4693752
    Abstract: An asphalt-based composition comprising an air-blown blend of hard asphalt flux and the residue obtained by vacuum distilling the product obtained by the hydrogenation of asphalt flux, the composition meeting coating grade asphalt specifications.
    Type: Grant
    Filed: April 17, 1986
    Date of Patent: September 15, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Samir F. Elias
  • Method and apparatus for producing fine fibers
    Patent number: 4689061
    Abstract: A method and apparatus for making glass fibers comprises a burner creating an annular jet of high-temperature, high-velocity gases and an orificed spinner mounted for rotation within the jet where the circumferential rows of orifices on the spinner peripheral wall are grouped in bands, with the bands being spaced apart by blank areas on a spinner peripheral wall, and the orifices increasing in size from the bottom band to the top band.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: August 25, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: William C. Britts, II, Farrokh Kaveh, David C. K. Lin
  • Process for the continuous production of pipe from particulate materials
    Patent number: 4685873
    Abstract: A process for continuously producing pipe by coating a particulate material with a gas curable resin, compacting the coated particulate material in an annular space, treating the compacted, coated particulate material with a curing gas to form a pipe having a porous wall structure, impregnating the porous walls of the pipe with an asphalt or resinous material, and, optionally, winding a reinforcing filament binder around the pipe.
    Type: Grant
    Filed: November 20, 1985
    Date of Patent: August 11, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: G. Fred Willard, Michael R. Wait, David A. Hutchings, Sanford K. Lauderback
  • Methods of making glass wool blowing insulation
    Patent number: 4682523
    Abstract: The method comprises cutting a glass wool blanket with a circular cutting grid having elastomeric plugs in the grid spaces. The cut columns and the plugs are both compressed. The cut columns are ejected by expansion of the plugs.
    Type: Grant
    Filed: January 6, 1986
    Date of Patent: July 28, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Alan R. Johnson, Richard C. Yawberg
  • Size compositions for glass fibers
    Patent number: 4683254
    Abstract: An aqueous size composition has been developed for glass fibers produced for molded products having appearance surfaces known as Class A surfaces. The size contains a cure stable polyester emulsion and a static insensitive lubricant system. The resulting coated glass fibers are especially useful in improving processability and product uniformity of SMC applications.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: July 28, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Robert C. Brannon, Donald B. Sage, Jr., David G. Miller
  • Method of making a lineal structural member
    Patent number: 4681722
    Abstract: Core material of shaped glass fiber board is impregnated with resin in outer surface portions, the resin is cured, an additional resin casing is formed therearound, and the additional resin is cured. Glass strands may be included with the resin impregnation, and a continuous strand mat, a veil mat, and glass rovings may be included with the resin encasing.
    Type: Grant
    Filed: October 7, 1985
    Date of Patent: July 21, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Neil A. Carter, Ronald R. Harris, Russell L. Ault
  • Apparatus for forming fibers
    Patent number: 4678490
    Abstract: An annular blower which has an internal baffle. The blower is used to attenuate glass fibers centrifuged from a spinner in a rotary fiberizer process. The internal baffle directs and uniforms gas flow in the blower and decreases turbulent flow conditions in the gas flowing from the periphery of the blower.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: July 7, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Charles H. Miller, Kunihiko Takeuchi, Paul A. Goodridge
  • Double-wall underground tank
    Patent number: 4676093
    Abstract: A double-wall tank having inner and outer walls bonded to connecting hollow annular ribs. A passageway through the ribs enable leak-detecting liquid to fill the spaces between ribs, within ribs, and between end caps.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: June 30, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Peter J. Pugnale, Andrew A. Mance
  • 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
  • Roof insulation board and method of making
    Patent number: 4673614
    Abstract: A glass fiber board having a facing adhered to one of two major faces thereof by foamed asphalt adhesive.
    Type: Grant
    Filed: October 3, 1986
    Date of Patent: June 16, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: James R. Wells, Donald C. Portfolio, Richard B. Beck
  • 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
  • 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
  • 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
  • Heat processing of particulate material
    Patent number: 4670054
    Abstract: Apparatus and method for the heat processing of granular materials by the counterflow of the granular material and preheated particulate heat exchange media through a processing drum rotatable about an inclined axis. The hot media is imtimately mixed with the granular material internally of the drum to heat the material and to cool the media. Various arrangements are disclosed to recover the heat imparted to the material, or to utilize the media for successive heating operations, or to recover waste heat from other related heat processing operations or to utilize the material as preheated by the media.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: June 2, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Charles M. Hohman, Mark A. Propster, Stephen Seng
  • 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
  • Protective coating for refractory metal substrates
    Patent number: 4668262
    Abstract: A refractory metal substrate suitable for use in contact with molten glass is coated with a chromium oxide outer coating and a molybdenum disilicide buffer coating to protect the substrate from oxidation at elevated temperatures, particularly during start up of an electric furnace.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: May 26, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Subhash S. Kithany
  • Corrosion resistant cobalt-base alloy and method of making fibers
    Patent number: 4668265
    Abstract: A cobalt-base alloy having a high tantalum and zirconium content and a low silicon content has superior strength and improved resistance to corrosion by molten glass. The alloy is highly suited for use in spinners for spinning molten mineral material, such as glass, into fibers.
    Type: Grant
    Filed: June 18, 1985
    Date of Patent: May 26, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: David J. Gaul, Robert E. Spencer
  • Corrosion resistant cobalt-base alloy having a high chromium content and method of making fibers
    Patent number: 4668266
    Abstract: A cobalt-base alloy having a high chromium, tantalum and zirconium content and a low silicon content has superior strength and improved resistance to corrosion by molten glass. The alloy is highly suited for use in spinners for spinning molten mineral material, such as glass, into fibers.
    Type: Grant
    Filed: June 18, 1985
    Date of Patent: May 26, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: David J. Gaul