Patents Examined by Peter G. Kortynyk
  • Drive shaft for a peristaltic pump
    Patent number: 5718568
    Abstract: A drive shaft for at least a rotating roller wherein the external portion of said drive shaft has surfaces treated by projection of particles to impart to it a controlled roughness designed to enable slip-free non-gear-like tooth drive of the roller by the shaft.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: February 17, 1998
    Assignee: Debiotech S.A.
    Inventors: Frederic Neftel, Bernard Bouvier