Patents by Inventor Paul Mottishaw

Paul Mottishaw 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).

  • Analytical instruments, ionization sources, and ionization methods
    Patent number: 7026611
    Abstract: Methods and apparatus for simultaneous vaporization and ionization of a sample in a spectrometer prior to introducing the sample into the drift tube of the analyzer are disclosed. The apparatus includes a vaporization/ionization source having an electrically conductive conduit configured to receive sample particulate which is conveyed to a discharge end of the conduit. Positioned proximate to the discharge end of the conduit is an electrically conductive reference device. The conduit and the reference device act as electrodes and have an electrical potential maintained between them sufficient to cause a corona effect, which will cause at least partial simultaneous ionization and vaporization of the sample particulate. The electrical potential can be maintained to establish a continuous corona, or can be held slightly below the breakdown potential such that arrival of particulate at the point of proximity of the electrodes disrupts the potential, causing arcing and the corona effect.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: April 11, 2006
    Assignee: Battelle Energy Alliance, LLC
    Inventors: David A. Atkinson, Paul Mottishaw
  • Simultaneous vaporization and ionization spectrometry source, accompanying spectrometer; method for simultaneous vaporization and ionization of sample particulate to produce analyte ions
    Publication number: 20020162967
    Abstract: Methods and apparatus for simultaneous vaporization and ionization of a sample in a spectrometer prior to introducing the sample into the drift tube of the analyzer are disclosed. The apparatus includes a vaporization/ionization source having an electrically conductive conduit configured to receive sample particulate which is conveyed to a discharge end of the conduit. Positioned proximate to the discharge end of the conduit is an electrically conductive reference device. The conduit and the reference device act as electrodes and have an electrical potential maintained between them sufficient to cause a corona effect, which will cause at least partial simultaneous ionization and vaporization of the sample particulate. The electrical potential can be maintained to establish a continuous corona, or can be held slightly below the breakdown potential such that arrival of particulate at the point of proximity of the electrodes disrupts the potential, causing arcing and the corona effect.
    Type: Application
    Filed: May 1, 2001
    Publication date: November 7, 2002
    Applicant: Bechtil BWTX Idaho, LLC
    Inventors: David A. Atkinson, Paul Mottishaw