Patents by Inventor Frank Kuja

Frank Kuja 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).

  • Combined particle vapor sampler
    Patent number: 6619143
    Abstract: An method of, and an apparatus for, collecting a sample of a substance of interest, utilizes an apparatus having a device for collecting a vapor sample and a device for retaining a substrate. A substrate, having a working portion and a mounting portion, is mounted by the mounting portion of the substrate, whereby the working portion of the substrate is exposed for use. The apparatus so that the working portion of the substrate traverses surfaces of interest, to collect a particulate sample. A device for sampling vapor is operated to obtain a vapor sample. The vapor and particulate samples collected are analyzed.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: September 16, 2003
    Assignee: Barringer Research Limited
    Inventors: Ludmila Danylewych-May, John Henry Davies, Frank Kuja, Sabatino Nacson
  • Combined particle vapor sampler
    Publication number: 20020148305
    Abstract: An method of, and an apparatus for, collecting a sample of a substance of interest, utilizes an apparatus having a device for collecting a vapor sample and a device for retaining a substrate. A substrate, having a working portion and a mounting portion, is mounted by the mounting portion of the substrate, whereby the working portion of the substrate is exposed for use. The apparatus so that the working portion of the substrate traverses surfaces of interest, to collect a particulate sample. A device for sampling vapor is operated to obtain a vapor sample. The vapor and particulate samples collected are analyzed.
    Type: Application
    Filed: February 4, 2002
    Publication date: October 17, 2002
    Inventors: Ludmila Danylewych-May, John Henry Davies, Frank Kuja, Sabatino Nacson
  • Combined particle/vapor sampler
    Patent number: 6446514
    Abstract: An method of, and an apparatus for, collecting a sample of a substance of interest, utilizes an apparatus having a device for collecting a vapor sample and a device for retaining a substrate. A substrate, having a working portion and a mounting portion, is mounted by the mounting portion of the substrate, whereby the working portion of the substrate is exposed for use. The apparatus so that the working portion of the substrate traverses surfaces of interest, to collect a particulate sample. A device for sampling vapor is operated to obtain a vapor sample. The vapor and particulate samples collected are analyzed.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: September 10, 2002
    Assignee: Barringer Research Limited
    Inventors: Ludmila Danylewych-May, John Henry Davies, Frank Kuja, Sabatino Nacson
  • Method of monitoring the status of the gas drying system in an ion mobility spectrometer
    Patent number: 6291821
    Abstract: A method is provided for monitoring the concentration of water vapor in an ion mobility spectrometer which measures the drift time of a selected ion, having a tendency to form clusters of water molecules. As these clusters are formed, the drift time of the ion varies, and by monitoring this variation in drift time, a measure of the concentration of water vapor can be made. If this exceeds a certain level, a warning can be given and/or the instrument disabled. Preferably, a comparison is made between two different ions, one having at least a moderate tendency to form clusters with water molecules, and the other having a weak tendency to form such clusters. By comparing the two drift times, a relatively accurate determination of water concentration can be made, and this can automatically allow for variations of drift times due to other causes.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: September 18, 2001
    Assignee: Barringer Research Limited
    Inventors: Ludmila Danylewych-May, Frank Kuja