Patents by Inventor Lennart Johannesson

Lennart Johannesson 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: 4730962
    Abstract: A divided milling cutter comprises a first cutter half and a second cutter half which are adjustable in relation to each other with respect to their mutual distance and are both connected to a first, common, hydraulic sleeve which has an internal, annular pressure chamber and is threadable on to and securable to a cutter spindle or the like. To make possible a continous or step-less variation of the distance between the cutter halves in a simple way even when they are mounted on the cutter spindle said second cutter half is fastened to a second sleeve which is in threaded engagement with a third, threaded sleeve having a substantially annular flange which abuts an end of, or shoulder on, the first sleeve.
    Type: Grant
    Filed: August 30, 1985
    Date of Patent: March 15, 1988
    Inventor: Lennart Johannesson
  • Patent number: 4552496
    Abstract: Improvements in divided milling cutters comprise a first cutter half (2) and a second cutter half (6) which are adjustable in relation to each other with respect to their mutual distance and are both connected to a common sleeve (1) threadable on to and securable to a cutter spindle or the like which is preferably threaded, at least in part. To make possible a continuous or step-less variation of the distance between the cutting edge holders in a simple way even when the apparatus is mounted on the cutter spindle said second cutter half (6) is fastened to an outer sleeve (8) which is in threaded engagement with an externally threaded intermediate sleeve (13) having a substantially annular flange (14) which abuts an end or shoulder on the common sleeve.
    Type: Grant
    Filed: January 5, 1983
    Date of Patent: November 12, 1985
    Inventor: Lennart Johannesson