Patents by Inventor John Dopyera

John Dopyera 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: 4172404
    Abstract: A stringed musical instrument having an instrument body, a neck mounted on and extending from said body, and at least one string, an end of which is secured to the extremity of the neck remote from said body and an end of which is secured to said body, this string being under tension and extending adjacent to the neck and the body between its ends, can be improved by pivotally mounting the neck on the body and by using a cam and cam follower structure to adjust the position of the neck relative to the body. The cam and cam follower structure is employed so as to equalize the component of the force exerted by the string on the neck tending to deform the neck. Preferably the instrument has two somewhat flexible resonator structures within the body of the instrument and means connecting both of the resonator structures to a bridge supporting the string or strings of the instrument. These connecting means are employed to transmit vibration to both of the resonator structures.
    Type: Grant
    Filed: November 23, 1977
    Date of Patent: October 30, 1979
    Inventor: John Dopyera
  • Patent number: 4068553
    Abstract: A stringed musical instrument having an instrument body, a neck mounted on and extending from said body, and at least one string, an end of which is secured to the extremity of the neck remote from said body and an end of which is secured to said body, this string being under tension and extending adjacent to the neck and the body between its ends, can be improved by pivotally mounting the neck on the body and by using a cam and cam follower structure to adjust the position of the neck relative to the body. The cam and cam follower structure is employed so as to equalize the component of the force exerted by the string on the neck tending to deform the neck. Preferably the instrument has two somewhat flexible resonator structures within the body of the instrument and means connecting both of the resonator structures to a bridge supporting the string or strings of the instrument. These connecting means are employed to transmit vibration to both of the resonator structures.
    Type: Grant
    Filed: April 7, 1976
    Date of Patent: January 17, 1978
    Inventor: John Dopyera