Patents by Inventor Michael R. Strunk

Michael R. Strunk 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).

  • Automated two-dimensional interface for capillary gas chromatography
    Patent number: 5492555
    Abstract: A multidimensional gas chromatograph (GC) system having wide bore capillary and narrow bore capillary GC columns in series and having a novel system interface. Heart cuts from a high flow rate sample, separated by a wide bore GC column, are collected and directed to a narrow bore GC column with carrier gas injected at a lower flow compatible with a mass spectrometer. A bimodal six-way valve is connected with the wide bore GC column outlet and a bimodal four-way valve is connected with the narrow bore GC column inlet. A trapping and retaining circuit with a cold trap is connected with the six-way valve and a transfer circuit interconnects the two valves.
    Type: Grant
    Filed: June 9, 1994
    Date of Patent: February 20, 1996
    Assignee: Lovelace Biomedical & Environmental Research Institute, Inc.
    Inventors: Michael R. Strunk, William E. Bechtold