Patents Assigned to Joachim Hoffmann
  • Bearing unit for a bottom bracket bearing of a bicycle or the like
    Patent number: 5118205
    Abstract: A bottom bracket bearing unit for a bicycle or the like has an installation unit formed by a long sleeve and short sleeve of synthetic resin formed directly with race grooves for a pair of double bearings which have steel balls riding between the grooves of the sleeves and the grooves of the pedal-crnak axle or shaft which is received in these sleeves.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: June 2, 1992
    Assignee: Joachim Hoffmann
    Inventor: Joachim Hoffmann