Patents by Inventor Gotthilf Strohbeck

Gotthilf Strohbeck 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).

  • Vibratory compactor
    Patent number: 3961774
    Abstract: A tubular housing of a vibratory compactor has an end portion and vibration-producing structure located within the housing so as to effect vibrating of the housing and thereby of storable concrete or like materials into which the housing is partially or completely immersed. A protective sleeve surrounds the housing over at least part of the axial length thereof so that immersion of this part does not cause ware of the housing but instead causes only ware of the replaceable sleeve. An end cap is mounted on the end portion of the housing and holds the sleeve in place.
    Type: Grant
    Filed: December 11, 1974
    Date of Patent: June 8, 1976
    Assignee: Robert Bosch GmbH
    Inventors: Gotthilf Strohbeck, Eugen Stahle