Patents Assigned to Sanifoam, Inc.
  • Apparatus and method for applying a foam layer to cover and seal dumped waste
    Patent number: 4519338
    Abstract: An apparatus and method for covering and sealing dumped waste is provided wherein hardenable plastic foam is sprayed in a swath as waste is compacted by a roller. The roller is wider than the treads of the tractor vehicle, the spray nozzles are angulated alternately, spraying any projection. The configuration of the wheel and nozzles reduced gaps in the foam layer by a large factor over the prior art using less foam and labor and in less time.
    Type: Grant
    Filed: October 20, 1983
    Date of Patent: May 28, 1985
    Assignee: Sanifoam, Inc.
    Inventors: Fritz Kramer, Thomas E. Skornscheck, Ernest Strauss
  • Method and apparatus for coating a substrate with foamed plastic
    Patent number: 4421788
    Abstract: Plastic foam is expelled from a slit-shaped nozzle under high enough pressure to break up the plastic foam into generally discrete particles which are propelled toward a surface to be coated with foam at a relatively high velocity. Upon striking the surface, the particles exhibit good adhesion and mechanically key into the substrate upon which they impact. The invention is particularly useful for coating the surface of a landfill for daily sealing of the upper surface thereof.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: December 20, 1983
    Assignee: Sanifoam, Inc.
    Inventor: Fritz Kramer