Patents by Inventor Walter G. Pusch

Walter G. Pusch 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).

  • Shapeable insulating material for use with molten aluminum
    Patent number: 4150189
    Abstract: A composition is described for formation of shaped insulating articles compatible with and resistant to molten aluminum. The composition comprises calcium aluminate cement, chrysotile fibers, cryolite, inorganic filler, and, preferably, refractory fiber. Shaped articles, especially elongated troughs and flat boards, made from the composition are also described. In addition, extrusion, press molding, and similar shaping processes for formation of the articles are described.
    Type: Grant
    Filed: December 30, 1974
    Date of Patent: April 17, 1979
    Assignee: Johns-Manville Corporation
    Inventor: Walter G. Pusch
  • High density asbestos-free tobermorite thermal insulation containing wollastonite
    Patent number: 4128434
    Abstract: A high density thermal insulation material is described, consisting essentially of 15 to 40 parts lime, 20 to 40 parts silica or other silicious material, 15 to 40 parts wollastonite, all slurried in water, then compressed to a shape retaining body of at least 20 pcf density and indurated to form an asbestos-free, wollastonite-reinforced, tobermorite calcium silicate hydrate matrix thermal insulation.
    Type: Grant
    Filed: June 23, 1977
    Date of Patent: December 5, 1978
    Assignee: Johns-Manville Corporation
    Inventor: Walter G. Pusch