Patents Assigned to Owens-Corning Fiberglas Corporation
  • Method and apparatus for making tapered mineral and organic fibers
    Patent number: 4666485
    Abstract: A tapered fiber and method and apparatus for making is provided in which the fiber has an increasing cross-sectional dimension in one direction along a portion of its length, and a decreasing cross-sectional dimension in the same direction along the same portion of its length.
    Type: Grant
    Filed: December 26, 1985
    Date of Patent: May 19, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Larry J. Huey
  • Method and apparatus for forming glass fibers
    Patent number: 4664688
    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: May 12, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Lawrence J. Grubka, Randall E. Nyhart
  • 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
  • Synthesis of styrenated hydroquinone
    Patent number: 4661645
    Abstract: Styrene and hydroquinone are reacted to produce (1-phenylethyl) hydroquinone, i.e.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: April 28, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: David M. Lee, David A. Hutchings, Gloria M. Sieloff, G. Fred Willard
  • 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
  • Asphalt coating composition
    Patent number: 4654385
    Abstract: An asphaltic coating composition in the form of an emulsion of chemically modified asphalt and a normal, non-modified asphalt in an aqueous emulsification medium. The emulsion can be used as a primer or damp-proof coating and has good adherence to concrete, wooden or asphaltic substrates to yield a coating of excellent physical properties. The chemically modified asphalt and the normal asphalt can be blended prior to emulsification, can be separately emulsified and mixed to form a blended emulsion, or can be individually emulsified in the same emulsification medium.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: March 31, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Michael G. Roberts, Frederick H. Ponn, Charles E. Bolen
  • 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
  • Cooling section for continuous web material impregnated with hot liquid
    Patent number: 4646540
    Abstract: The chill rolls of the cooling section are hollow, open-ended rolls. Spray nozzles in each roll spray water on the instantaneously upper half of the interior periphery and a fan blows air through the roll to effect evaporative cooling. Three different arrangements of the spray nozzles are disclosed for always directing spray to only the upper half of each chill roll.
    Type: Grant
    Filed: November 22, 1985
    Date of Patent: March 3, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Albert J. Blackwood, Thomas R. Brady
  • Blend of rapid set asphaltic emulsion with slow set asphalt emulsion
    Patent number: 4647606
    Abstract: There is provided a blend of a slow setting asphalt emulsion with rapid setting emulsion containing the reaction product of asphalt, an acrylamide, a vinyl aromatic monomer and a rubbery polymer.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: March 3, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Louis T. Hahn, Anthony V. Grossi, Alfred Marzocchi, Charles E. Bolen
  • Method and apparatus for producing glass fibers
    Patent number: 4643750
    Abstract: This invention pertains to a method and apparatus for forming glass fibers by flowing fine streams of glass from closely spaced orifices in a feeder plate while directing a cooling gas upwardly to promote separation of the streams of glass and eliminate the tendency of the molten glass to flood at the feeder plate.
    Type: Grant
    Filed: January 16, 1976
    Date of Patent: February 17, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Hellmut I. Glaser
  • Structural member
    Patent number: 4640065
    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: February 3, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Ronald R. Harris, Russell L. Ault
  • 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
  • Underground tank sump and piping system
    Patent number: 4639164
    Abstract: Sumps are mounted on manway fittings of underground tanks, and all piping runs are routed through a sump. Underground portions of pipes between a sump and a point above ground are provided with a double wall. Filling spills and leakage from pipes into the environment are thereby generally prevented.
    Type: Grant
    Filed: May 6, 1985
    Date of Patent: January 27, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Peter J. Pugnale, Michael J. Messmer
  • Road repair membrane
    Patent number: 4637946
    Abstract: A membrane for the repair of road surfaces, particularly for the retardation of reflective cracking from an old road surface to a newly-applied overlay. The membrane comprises a glass fiber mat impregnated with a blend of asphalt, a block copolymer and a mineral filler. The membrane, in the form of a complete covering or relatively small patches applied directly over a crack, is thermally adhered to the old road and to the overlay by the heat of the overlay itself. The membrane has a low modulus of elasticity, particularly at below freezing temperatures, to minimize crack-propagating stresses and to distribute both thermal and traffic stresses over a broader area of both the old road surface and the overlay.
    Type: Grant
    Filed: November 18, 1985
    Date of Patent: January 20, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Hasmukh G. Shah, Dwight S. Musgrave
  • Method for protecting the heating electrodes of glass melting furnaces
    Patent number: 4638491
    Abstract: Disclosed is a method for protecting the heating electrodes of glass melting furnaces by applying a DC potential to various electrodes of the furnace. The DC current is applied to the heating electrodes through counter electrodes or anodes. The method of this invention not only reduces the corrosion of the heating electrodes but also reduces the corrosion of the counter electrodes.
    Type: Grant
    Filed: May 14, 1981
    Date of Patent: January 20, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Richard A. Perkins
  • Splicing means for faced insulation batts
    Patent number: 4637188
    Abstract: The splicing means includes a push-on sheet metal splicing member for mounting on an upper flange portion of an I-beam and presenting a vertically oriented backing portion for a pair of clamping strips securable respectively to opposite sides of the backing portion by self-tapping screws.
    Type: Grant
    Filed: February 28, 1986
    Date of Patent: January 20, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Steven D. Crothers
  • Melting furnaces
    Patent number: 4638490
    Abstract: A melting furnace is disclosed which heats by joule effect to supply molten material of uniform temperature at the floor of the melter. During formation of molten material, an essentially isothermal condition across a given horizontal plane of the body of molten material is established. Spaced apart opposed electrodes and controlled current flow establish these uniform temperatures and allow molten material to be formed directly from the melter without further processing.
    Type: Grant
    Filed: October 5, 1984
    Date of Patent: January 20, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Charles S. Dunn, Mark A. Propster, Charles M. Hohman
  • 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