Patents by Inventor Steven Waisala

Steven Waisala 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).

  • High temperature stable continuous filament glass ceramic fiber
    Patent number: 5585312
    Abstract: Composition and process for the preparation of high temperature stable continuous glass ceramic fibers with an upper temperature use limit of 2300.degree. F. are provided. The compositional formulation, in mole percent, is 62-85% SiO.sub.2, 9.5-20% Al.sub.2 O.sub.3, 5-15.5% MgO, 0.5-5% TiO.sub.x, and 0-5% ZrO.sub.2. The continuous fibers are prepared by an economical direct melt method, and demonstrate high tensile strength, high Young's modulus, and low linear thermal shrinkage characteristics.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: December 17, 1996
    Assignee: Unifrax Corporation
    Inventors: John D. TenEyck, Thomas M. Clere, James Olson, Steven Waisala
  • High temperature stable continuous filament glass ceramic fibers
    Patent number: 5569629
    Abstract: Composition and process for the preparation of high temperature stable continuous glass ceramic fibers with an upper temperature use limit of 2300.degree. F. are provided. The compositional formulation, in mole percent, is 62-85% SiO.sub.2, 9.5-20% Al.sub.2 O.sub.3, 5-15.5% MgO, 0.5-5% TiO.sub.x, and 0-5% ZrO.sub.2. The continuous fibers are prepared by an economical direct melt method, and demonstrate high tensile strength, high Young's modulus, and low linear thermal shrinkage characteristics.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 29, 1996
    Assignee: Unifrax Corporation
    Inventors: John D. TenEyck, Thomas M. Clere, James Olson, Steven Waisala