Patents by Inventor Walter Trimpler

Walter Trimpler 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).

  • Digital display with stepping device
    Patent number: 3950939
    Abstract: A twenty-four hour digital display in which the numerals for the display are carried by a 1-hour barrel and a 10-hour barrel which are stepped by a stepping device. A steppable visor driven in steps by the 10-hour barrel covers part of the time the 1-hour barrel which has a function of the time display. The visor itself carries numerals for indicating single-digit hours. The stepping device includes a gearing and a shaft which serves simultaneously as a locking device for the two barrels.
    Type: Grant
    Filed: February 6, 1975
    Date of Patent: April 20, 1976
    Assignee: DIEHL
    Inventors: Alfred Meisner, Oskar Oellig, Josef Neubauer, Walter Trimpler, Erwin Potthof