Patents by Inventor P. Daniel Gilbert

P. Daniel Gilbert 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 the detection of holes and plugged spots
    Patent number: 5725737
    Abstract: The invention relates to an apparatus for detecting plugged sites and holes and for measuring of the water permeability properties of pervious machine fabrics. Plugged sites in a permeable fabric are detected by sensing water pressure pulses occurring in the nozzle at the moment when a stream of water flowing through the nozzle contacts a plugged site on a fast running fabric. The apparatus can be used on-line to simultaneously detect plugged sites and holes on a moving pervious fabric while monitoring its water permeability properties.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: March 10, 1998
    Assignee: Pulp and Paper Research Institute of Canada
    Inventors: Ivan I. Pikulik, P. Daniel Gilbert, Jean Hamel