Patents by Inventor David B. O'Connell

David B. O'Connell 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).

  • Job integrity and security apparatus
    Patent number: 5034770
    Abstract: An apparatus and method which provides job integrity and security for each sheet transported to and from a printing station including periods when a printing machine has cycled down enabling an operator to remove sheets therefrom. Each sheet transported to the printing station and each sheet delivered from the printing station is counted. A controller compares the number of sheets transported to the printing station to the number of sheets delivered from the printing station and the number of any sheets that may have been removed by the operator from the printing machine as a result of a cycle down. Operation of the printing machine will be inhibited if the number of sheets transported to the printing station do not equal the number of sheets delivered from the printing station and the number of sheets removed by the operator.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: July 23, 1991
    Assignee: Xerox Corporation
    Inventor: David B. O'Connell