Patents by Inventor Bernd-Siegfried Butow

Bernd-Siegfried Butow 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: 4944482
    Abstract: The invention relates to a hydraulic vibration damping bushing comprising two tubular rigid armatures (1, 2) jointly united by an elastomeric body (3) configured in such a way to form between themselves at least two tight pockets (4, 4') communicating with each other by a narrow channel (7), which along with the pockets is filled with a liquid. One of these pockets (4) contains an elastomeric pad (10) added on the concave face of a curved rigid plate (11) which abuts on the internal face of the external armature (2), said pad being, in the resting position of the bushing, diametrically precompressed between the two armatures.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: July 31, 1990
    Assignee: Hutchinson
    Inventors: Bernard Bouhier, Bernd-Siegfried Butow