Patents by Inventor Raymond J. Knight

Raymond J. Knight 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).

  • Cigarette detection and rejection device
    Patent number: 4445520
    Abstract: A cigarette testing device (10) detects improperly filled or missing cigarettes in groups of cigarettes in a cigarette packing machine. Tappets (20) are positioned against the ends of cigarettes (11) and the position of tappets (20) is determined by optical sensors (28). Defective cigarettes (15) are removed from the group by nozzles (24). One to one correspondence between cigarettes, tappets, sensors, and nozzle ejectors allows single defective cigarettes to be rejected without rejecting the entire group of cigarettes.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: May 1, 1984
    Assignee: Philip Morris Incorporated
    Inventors: Raymond J. Knight, Robert T. Mitten, Robert L. Ripley