Patents by Inventor Daniel McFadden

Daniel McFadden 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).

  • Method and sampling device for detection of low levels of a property/quality trait present in an inhomogeneously distributed sample substrate
    Patent number: 6872946
    Abstract: A process for detecting low levels of a predetermined quality trait present in an inhomogeneously distributed particulate substrate involving the steps of: (a) providing a particulate substrate to be analyzed; (b) providing a spectrometer with an electromagnetic detector capable of performing spectroscopic measurements with electromagnetic radiation; (c) providing a rotatable sample holder having a transparent area through which electromagnetic radiation may pass; (d) providing a tumbling member located within the rotatable sample holder for tumbling the particulate substrate contained therein; (e) introducing the particulate substrate into the rotatable sample holder; (f) simultaneously rotating and tumbling the particulate substrate contained within the rotatable sample holder; and (g) activating the spectrometer, thereby illuminating the particulate substrate contained within the rotatable sample holder with electromagnetic radiation.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: March 29, 2005
    Assignee: Cognis Corporation
    Inventors: Ching-Hui Tseng, Kangming Ma, Nan Wang, Daniel McFadden
  • Method and sampling device for detection of low levels of a property/quality trait present in an inhomogeneously distributed sample substrate
    Publication number: 20030168600
    Abstract: A process for detecting low levels of a predetermined quality trait present in an inhomogeneously distributed particulate substrate involving the steps of: (a) providing a particulate substrate to be analyzed; (b) providing a spectrometer with an electromagnetic detector capable of performing spectroscopic measurements with electromagnetic radiation; (c) providing a rotatable sample holder having a transparent area through which electromagnetic radiation may pass; (d) providing a tumbling member located within the rotatable sample holder for tumbling the particulate substrate contained therein; (e) introducing the particulate substrate into the rotatable sample holder; (f) simultaneously rotating and tumbling the particulate substrate contained within the rotatable sample holder; and (g) activating the spectrometer, thereby illuminating the particulate substrate contained within the rotatable sample holder with electromagnetic radiation.
    Type: Application
    Filed: February 13, 2003
    Publication date: September 11, 2003
    Inventors: Ching-Hui Tseng, Kangming Ma, Nan Wang, Daniel McFadden