Patents by Inventor Lawrence John Gajdos

Lawrence John Gajdos 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).

  • System for integrated backflush in a gas chromatograph
    Patent number: 8210026
    Abstract: A detector in a gas chromatograph includes a detector inlet configured to receive a chromatographic column, the chromatographic column having a column entrance and a column exit, the column exit coupled to the detector inlet, a restriction integrated within the detector, the restriction located to receive an output of the chromatographic column, at least one pressure regulated gas source provided for normal gas chromatograph operation and arranged to provide at least one gas to a location between the integrated restriction and the column exit, and a backflush controller coupled to the pressure regulated gas source, the backflush controller configured to control a pressure differential between the column exit and the column entrance such that the at least one gas backflushes the chromatographic column when a pressure at the column exit exceeds a pressure at the column entrance.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: July 3, 2012
    Assignee: Agilent Technologies, Inc.
    Inventors: Matthew S. Klee, Lawrence John Gajdos, Bruce Douglas Quimby
  • System For Integrated Backflush In A Gas Chromatograph
    Publication number: 20100139363
    Abstract: A detector in a gas chromatograph includes a detector inlet configured to receive a chromatographic column, the chromatographic column having a column entrance and a column exit, the column exit coupled to the detector inlet, a restriction integrated within the detector, the restriction located to receive an output of the chromatographic column, at least one pressure regulated gas source provided for normal gas chromatograph operation and arranged to provide at least one gas to a location between the integrated restriction and the column exit, and a backflush controller coupled to the pressure regulated gas source, the backflush controller configured to control a pressure differential between the column exit and the column entrance such that the at least one gas backflushes the chromatographic column when a pressure at the column exit exceeds a pressure at the column entrance.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 10, 2010
    Inventors: Matthew S. Klee, Lawrence John Gajdos, Bruce Douglas Quimby