Patents by Inventor Erhard Schmid

Erhard Schmid 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).

  • Metronome
    Patent number: 4759253
    Abstract: In a metronome, a toothed wheel and a bell drum each comprise toothings facing each other, by means of which the toothed wheel and the bell drum are in positive engagement with each other in defined angular positions. The toothed wheel and the bell drum are axially displaceable relative to each other on the toothed wheel shaft in order to release their positive engagement and to alter their angular position. When the metronome is in operation, the toothed wheel and the bell drum are kept in mutual positive engagement by releasable holding means.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: July 26, 1988
    Assignee: Rudolf Wittner GmbH u. Co.
    Inventors: Fritz Harle, Georg Vochezer, Erhard Schmid