Patents by Inventor Waldemar Schaller

Waldemar Schaller 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).

  • Plug for mouthpiece of a wooden recorder
    Patent number: 4347775
    Abstract: A plug for the mouthpiece of a wooden recorder, molded integral from plastic material, has a concave and a flat end wall interconnected by side and intermediate walls. A lower side wall, or an intermediate wall parallel thereto, has one or two outer humps designed to contact the inner mouthpiece surface and is sufficiently deformable to flex inward upon insertion into the mouthpiece.
    Type: Grant
    Filed: May 20, 1981
    Date of Patent: September 7, 1982
    Assignee: Matth. Hohner AG
    Inventors: Hans-Dieter Held, Waldemar Schaller