Patents by Inventor Jacob R. Peternel

Jacob R. Peternel 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 and apparatus for determining number of sheets in a stack
    Patent number: 4298790
    Abstract: Reflected energy density signal as a function of distance in pulse counts determined from a side of stacked sheets is used to calculate sheet pulse counts. A working pulse range is determined from the nominal thickness range of the stacked sheets and thereafter pulse values within the working pulse range are selected. The calculated sheet pulse counts and selected pulse values are compared and acted on to develop a pair of sheet counts for each selected pulse value. The pair of sheet counts occurring at least 10 consecutive times is considered the number of sheets in the stack.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: November 3, 1981
    Assignee: PPG Industries, Inc.
    Inventors: Forrest W. Decker, Jacob R. Peternel