Patents by Inventor Harold S. Burgon

Harold S. Burgon 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).

  • Tuning of musical instruments
    Patent number: 5390579
    Abstract: Apparatus (1) for varying the pitch of the strings (12) of a guitar (15) comprises a respective adjusting mechanism (10) for each string. This mechanism includes an externally threaded tubular member (20) within which one end of the string (12) is secured. Tension is applied to the string by a coil spring (124) which has one end fixed to the tubular member (20). A drive motor (34) is arranged to rotate a gear (26) whereby longitudinal movement of the tubular member (20) is effected to vary the tension in the string (12). The rotation of the drive motor (34) is effected by an electronic circuit arranged to tune the pitch of the string a reference.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: February 21, 1995
    Assignee: Torque Talk Limited
    Inventor: Harold S. Burgon