Patents by Inventor Ralph A. Happe

Ralph A. Happe 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).

  • Method of constructing trumpet or other brass instrument
    Patent number: 4273020
    Abstract: A method of constructing a trumpet or other brass instrument is disclosed wherein a zone of increased taper is formed on the cylindrical inner surface of the mouthpipe to provide an improved air column between the mouthpiece and valve sections of the instrument. The zone of increased taper is critically positioned along the length of the mouthpipe to coincide with the pressure maximum points of selected notes in the upper octave of the normal playing range of the instrument to yield a chromatic scale that is nominally true to desired pitch.
    Type: Grant
    Filed: May 24, 1979
    Date of Patent: June 16, 1981
    Inventor: Ralph A. Happe