Patents by Inventor Hartmut Rodekamp

Hartmut Rodekamp 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).

  • Valve plates for container valves and method of manufacturing same
    Patent number: 4515285
    Abstract: A valve plate is manufactured by stamping round two-ply blanks out of two superimposed strips of material and shaping the valve plate out of the blanks while retaining the double ply. The plate is provided with a dome by this process. The outer ply is now provided with threading in the vicinity of the dome. If the plate is damaged when an adaptor is subsequently screwed onto it, the damage will be confined to the outer layer.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: May 7, 1985
    Assignee: Ewald Euscher
    Inventors: Werner Euscher-Klingenhagen, Horst Griemla, Hartmut Rodekamp