Patents by Inventor Leo Burri

Leo Burri 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: 4611827
    Abstract: A first sleeve is connected to a second sleeve by means of a bellows. Brackets are arranged at the mutual circumferential distance along the circumferences of the sleeves which brackets are welded to the first sleeve at an end section thereof. The opposite end section of the brackets rest slidingly on the second sleeve. A clamping ring extends around the second end sections of the brackets at an inclined surface area thereof. This clamping ring is pushed onto these inclined surfaces and urges the end sections of the brackets against the second sleeve. The limiting of the stroke of the compensator is provided by circumferential rings welded to the second sleeve. The relative rotation blocking means is an elongated profile member which is welded onto the second sleeve and contacts a respective bracket.
    Type: Grant
    Filed: June 26, 1984
    Date of Patent: September 16, 1986
    Assignee: Boa A. G. Luzern
    Inventors: Wilhelm Marti, Leo Burri