Patents by Inventor Erich Sievers

Erich Sievers 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 continuous application of foam onto a flat structure
    Patent number: 4557218
    Abstract: In a device for the continuous application of foam onto a flat structure to be coated there is provided a cylindrical container which is implemented as a foaming device wherein a rotating shaft is supported, which carries foaming elements formed as apertured disks. The foam is discharged directly from a slit-like opening in the lower portion of the cylindrical container to the structure to be coated.
    Type: Grant
    Filed: May 21, 1984
    Date of Patent: December 10, 1985
    Assignee: Manfred Kupfer
    Inventor: Erich Sievers