Patents by Inventor Gregg A. Lithgow

Gregg A. Lithgow 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).

  • Spark emission particle detector
    Patent number: 9140653
    Abstract: Techniques and devices are disclosed for detecting particle composition. In one aspect, a method performed by a detector to detect particles includes receiving particles at an aerosol inlet of the detector. The method includes carrying the received particles within a stream of gas and charging the particles within the stream of gas using a charger to have a charge. The method includes transporting the charged particles to a location of a collection electrode. The method includes biasing the collection electrode to a voltage using a high-voltage supply to attract either negatively or positively charged particles, and analyzing the particles.
    Type: Grant
    Filed: October 8, 2011
    Date of Patent: September 22, 2015
    Assignee: TSI Incorporated
    Inventors: Steven G. Buckley, Gregg A. Lithgow
  • SPARK EMISSION PARTICLE DETECTOR
    Publication number: 20130265574
    Abstract: Techniques and devices are disclosed for detecting particle composition. In one aspect, a method performed by a detector to detect particles includes receiving particles at an aerosol inlet of the detector. The method includes carrying the received particles within a stream of gas and charging the particles within the stream of gas using a charger to have a charge. The method includes transporting the charged particles to a location of a collection electrode. The method includes biasing the collection electrode to a voltage using a high-voltage supply to attract either negatively or positively charged particles, and analyzing the particles.
    Type: Application
    Filed: October 8, 2011
    Publication date: October 10, 2013
    Applicant: TSI INCORPORATED
    Inventors: Steven G. Buckley, Gregg A. Lithgow