Patents by Inventor John D. Scheff

John D. Scheff 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).

  • Measuring apparatus with readout display
    Patent number: 5060394
    Abstract: A tape measure 20 includes a display window 24 for presenting a digital presentation of the measurement being made. The tape measure 20 includes an encoder 74 which provides for a combined absolute scale 95 and relative scale 105 for determining the measurement. Perforations 62 in the tape 26 are mated with pins 60 extending from a capstan 58 in order to cause the encoder 74 to send signals to a microprocessor 76. The microprocessor 76 processes the signal and displays the measurement.
    Type: Grant
    Filed: April 20, 1989
    Date of Patent: October 29, 1991
    Assignee: Homestar International Inc.
    Inventors: Larry A. Lincoln, Nicholas Vrionis, Donald E. Pezzolo, James W. Pfeiffer, Robert A. Wilk, John D. Scheff