Patents by Inventor Alexandra M. Kavoulakis

Alexandra M. Kavoulakis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Liquid sealing gasket sheet materials
    Patent number: 5536565
    Abstract: Fluid-sealing gasket sheet materials are described herein which seal particularly well against polar liquids. These gasketing sheets have from about 5 to about 20% fiber, and at least about 62% filler, and a reduced binder concentration, containg about 18% by weight of binder or less, allowing the binder to be reduced even to zero. The filler must be at least about 3% by weight of a gel-forming mineral filler. In addition to giving from good to very excellent seals against polar liquids, this gasketing also has good torque retention and creep resistance.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: July 16, 1996
    Assignee: Armstrong World Industries, Inc.
    Inventors: Nowaf Halout, Alexandra M. Kavoulakis, Ellen R. Romano
  • Wet-laying process for making liquid sealing gasket sheet materials
    Patent number: 5437767
    Abstract: A wet laying process for making fluid-sealing gasket sheet materials is described. The gasket materials seal particularly well against polar liquids. These gasketing sheets have from about 5 to about 20% fiber, and at least about 62% filler, and a reduced binder concentration, containing about 18% by weight of binder or less, allowing the binder to be reduced even to zero. The sheet must include at least about 3% by total dry weight of a gel-forming mineral filler. In addition to giving from good to very excellent seals against polar liquids, this gasketing also has good torque retention and creep resistance.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: August 1, 1995
    Assignee: Armstrong World Industries, Inc.
    Inventors: Nowaf Halout, Alexandra M. Kavoulakis, Ellen R. Romano