Patents by Inventor Susan F. Hilt

Susan F. Hilt 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).

  • Method of providing thermal insulation and product therefor
    Patent number: 4134242
    Abstract: A free flowing thermal insulation which may be installed by auger feeding, blowing or pouring is disclosed. Granular material having a requisite K value (e.g., 0.20-0.315 BTU-in/.degree.F-ft.sup.2 -hr) is a major component of the insulation and is thoroughly mixed with a minor component of fibrous thermal insulating material to form a mixture which is used to provide the thermal insulation. Also included in the thermal insulation is a dust suppressant in quantities as required.
    Type: Grant
    Filed: September 1, 1977
    Date of Patent: January 16, 1979
    Assignee: Johns-Manville Corporation
    Inventors: Andrew Musz, John A. Hoehler, Susan F. Hilt, William H. Kielmeyer