Patents by Inventor Robert T. Eberle

Robert T. Eberle 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).

  • Container having improved filling valve
    Patent number: 4091986
    Abstract: An industrial container or bag is disclosed as having a filling valve for particulate materials, which valve is an effective seal following a filling operation and which valve is flexibly mounted to preclude its rupture during the filling operation.
    Type: Grant
    Filed: May 4, 1977
    Date of Patent: May 30, 1978
    Assignee: Olinkraft, Inc.
    Inventor: Robert T. Eberle