Patents Represented by Attorney Thomas F. McGann

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  • Curing oven apparatus
    Patent number: 4825561
    Abstract: A flexible screen mounted to pneumatically seal the sides of an opposing belt conveyor system in a porous pack curing oven. Fixed to the upper belt structure and drapingly sealed to the lower belt structure, the screen impedes curing gases directed through the foraminous belts and porous pack therebetween from exiting through the edges of the pack. The draping screen provides a seal over a range of belt-to-belt spacing.
    Type: Grant
    Filed: May 29, 1984
    Date of Patent: May 2, 1989
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Donald E. Cornell
  • Method and apparatus for conveying molten material
    Patent number: 4713106
    Abstract: A vertical standpipe which has an internal fitting. The standpipe conveys a molten glass stream from a molten bath in a furnace forehearth to a spinner below the forehearth. The internal fitting has an orifice positioned so as to maintain a spaced-apart relationship between the interior surface of the standpipe and the molten glass stream issuing from the orifice. The mass flow rate of the molten glass stream is throttled by variable cooling means in the vicinity of the orifice.
    Type: Grant
    Filed: April 18, 1986
    Date of Patent: December 15, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: John A. McCague
  • 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
  • Rotary distributor
    Patent number: 4625920
    Abstract: Apparatus and method for distributing particulate material substantially evenly over a square receiving area are disclosed, the apparatus comprising a rotatable trough having a discharge slot positioned along its length.
    Type: Grant
    Filed: April 3, 1981
    Date of Patent: December 2, 1986
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Stephen Seng
  • Apparatus for sensing openings in sheet
    Patent number: 4563633
    Abstract: An apparatus and method of sensing openings in a perforated sheet by means of electrical contact between electrically conducting surfaces positioned on opposite sides of the sheet.
    Type: Grant
    Filed: May 11, 1983
    Date of Patent: January 7, 1986
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Ken R. Johnson, Paul S. Sanik
  • Methods of introducing fluorine into glasses
    Patent number: 4521523
    Abstract: A method of introducing fluorine into glasses characterized by high fluorine retention and low processing costs which involves introducing the fluorine into the glass batch as a fluorine-containing frit comprising an inorganic fluoride and containing from about 6 to about 10 weight percent fluorine.
    Type: Grant
    Filed: December 30, 1983
    Date of Patent: June 4, 1985
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Patrick F. Aubourg, Barbara L. Fabricant
  • Recuperation of heat absorbent media to preheat combustion gases and glass batch
    Patent number: 4478627
    Abstract: A method of recovering heat from furnace flue gas which comprises passing the hot gases into contact with high specific heat media and the media into contact successively, with combustion gases and glass batch.
    Type: Grant
    Filed: July 16, 1982
    Date of Patent: October 23, 1984
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Charles M. Hohman, Mark A. Propster, Charles Dunn, Stephen Seng