Patents by Inventor John H. C. Pippy

John H. C. Pippy 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).

  • Apparatus for monitoring moving aquatic organisms
    Patent number: 5222458
    Abstract: High contrast silhouette images of moving aquatic organisms against a brightly lit background are provided with an apparatus which comprises a tunnel with transparent top and front walls for confining the motion of aquatic organisms, retroreflective surfaces associated with the rear and bottom wall of the tunnel, a mirror, a camera, a light source and a camera support. Tunnel edges are provided with retroreflective surfaces to provide brightly lit borders to facilitate machine vision. Arrangements are described for determining organism size.
    Type: Grant
    Filed: February 24, 1992
    Date of Patent: June 29, 1993
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Department of Fisheries and Oceans
    Inventor: John H. C. Pippy