Patents Assigned to Walter Haedrich
  • Flute
    Patent number: 4376403
    Abstract: The flute invention relates to fingering mechanisms. More readily attained and maintained technical competence in playing the flute is enabled by facilitator mechanism (13) for improved actuation of the B flat key. Facilitator mechanism (14) includes a rocker bar (54) coupling the Briccialdi B flat lever to the rod assembly sections carrying the B flat key and the G key. Coupling between the G sharp lever and the B flat key is maintained by cam (67, 81) and plate (68, 82).
    Type: Grant
    Filed: May 1, 1981
    Date of Patent: March 15, 1983
    Assignee: Walter Haedrich
    Inventors: Walter Haedrich, J. Dennis Lawson