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Gas sampling system for a mass spectrometer

United States Patent

6,670,608
December 30, 2003
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
The present invention relates generally to a gas sampling system, and specifically to a gas sampling system for transporting a hazardous process gas to a remotely located mass spectrometer. The gas sampling system includes a capillary tube having a predetermined capillary length and capillary diameter in communication with the supply of process gas and the mass spectrometer, a flexible tube surrounding and coaxial with the capillary tube intermediate the supply of process gas and the mass spectrometer, a heat transfer tube surrounding and coaxial with the capillary tube, and a heating device in communication the heat transfer tube for substantially preventing condensation of the process gas within the capillary tube.
Taylor; Charles E. (Mt. Lebanon, PA), Ladner; Edward P. (Baldwin Borough, PA)
The United States of America as represented by the United States Department of Energy (Washington, DC)
09/ 950,643
September 13, 2001
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in this invention through an employer-employee relationship between the U.S. Department of Energy and The National Energy Technology Laboratory.