Patents by Inventor Alban Putz

Alban Putz 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).

  • Device for creation of an oxygen-free working atmosphere
    Patent number: 4869878
    Abstract: An apparatus for providing an oxygen-free working atmosphere wherein the waste gases from a conventional gas burner heating unit are compressed and used as buffer and propellant gases for spray guns for spraying molten metal or ceramic material onto a workpiece, where an expansion chamber is provided between the gas burner and the compressor and a constant pressure is maintained in the expansion chamber which is not less than atmospheric pressure.
    Type: Grant
    Filed: August 6, 1987
    Date of Patent: September 26, 1989
    Assignee: APU North America, Inc.
    Inventor: Alban Putz
  • Method of producing molds for injection molding
    Patent number: 4777002
    Abstract: Molds for injection molding are produced by providing a primary mold core, coating the primary mold core with a water-resistant coating layer, applying on the water-resistant coating layer a separating layer, spraying a metal shell on the separating layer, arranging a rear filling on the shell so as to form a tool part, and supplying water to the water-soluble layer so as to remove the tool part.
    Type: Grant
    Filed: September 30, 1986
    Date of Patent: October 11, 1988
    Inventor: Alban Putz