Patents by Inventor Ernest S. Houck

Ernest S. Houck 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).

  • Patent number: 6198537
    Abstract: A station optically inspects banded cigarette paper by directing an elongated beam of white light laterally across a web of the cigarette paper. The elongated beam impinges on the surface of the cigarette paper and forms reflections. A plurality of line scan camera containing linear CCD arrays receive the reflections and generate output signals. One or more processing units process the output signals to generate data indicative of the spacing between bands, the width of the bands, and the contrast of the bands. These calculations can be periodically transferred to a separate computer workstation over a network. The workstation generates statistical reports on the basis of the calculations, such as the band width, band spacing and band contrast as a function of lane number, and as a function of time. The statistical reports provide a convenient way of quickly detecting irregularities in application of the bands.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: March 6, 2001
    Assignee: Philip Morris Incorporated
    Inventors: Gordon H. Bokelman, Thomas A. Fletcher, D. Anh Phan, Yeu-Hwa Shyy, Ernest S. Houck