Patents by Inventor Walter Eichenberger

Walter Eichenberger 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 cooling long items of material which have been heated
    Patent number: 4185810
    Abstract: An improved apparatus for cooling heated metal items such as extrusion billets, and in particular billets of aluminum alloys is disclosed. The apparatus comprises a cooling chamber, means for transporting individual billets into and out of the cooling chamber, and inlet and outlet openings for the ingress and egress of a cooling medium from said chamber. A fan or the like is employed to produce a flow of air through the cooling chamber.
    Type: Grant
    Filed: September 1, 1978
    Date of Patent: January 29, 1980
    Assignee: Swiss Aluminium Ltd.
    Inventors: Walter Eichenberger, Bernhard Hilge
  • Densitymeter
    Patent number: D264444
    Type: Grant
    Filed: February 28, 1980
    Date of Patent: May 18, 1982
    Assignee: GRETAG Aktiengesellschaft
    Inventors: Ernest Muchenberger, Walter Eichenberger