Patents by Inventor Arno Viecenz

Arno Viecenz 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).

  • Patent number: 4408668
    Abstract: An impact transfer device for pile drivers is made as a one-piece steel unit defining a solid percussion part of a substantially cylindrical configuration with a convex impact surface capable of withstanding steel-on-steel impacts, an intermediate tubular part of substantially frusto-conical configuration integrally connected to the percussion part and a base ring integrally connected to the larger end of the intermediate tubular part having an annular support surface facing away from the impact surface.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: October 11, 1983
    Assignee: Koehring GmbH
    Inventors: Hans Kuhn, Arno Viecenz