Patents by Inventor Yonquan Li

Yonquan Li 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).

  • Sample line management in a fluid analyzer system
    Patent number: 9366607
    Abstract: In a first mode, a monitoring system inputs humidified gas through at least a portion of a conduit. At least a portion of the water in the humidified gas adheres to the inner surface of the conduit, inhibiting contaminants in the gas sample from adhering to the inner surface. The water in the humidified gas may also push any contaminants adhered to the surface of the sample line back out the sample line. In a second mode, after previously passing the humidified gas through the conduit, the monitoring system controls a flow of a gas sample including the contaminants through the conduit to a gas analyzer. The one or more layer of water on the inner surface of the conduit prevents or reduces a buildup of undesirable contaminants on an inner surface of a conduit that conveys gas samples.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: June 14, 2016
    Assignee: Thermo Environmental Instruments Inc.
    Inventors: Yonquan Li, Daniel E. Glenn, K. Stephen Johnson, Jr., Dieter Kita
  • Sample Line Management In A Fluid Analyzer System
    Publication number: 20140165705
    Abstract: In a first mode, a monitoring system inputs humidified gas through at least a portion of a conduit. At least a portion of the water in the humidified gas adheres to the inner surface of the conduit, inhibiting contaminants in the gas sample from adhering to the inner surface. The water in the humidified gas may also push any contaminants adhered to the surface of the sample line back out the sample line. In a second mode, after previously passing the humidified gas through the conduit, the monitoring system controls a flow of a gas sample including the contaminants through the conduit to a gas analyzer. The one or more layer of water on the inner surface of the conduit prevents or reduces a buildup of undesirable contaminants on an inner surface of a conduit that conveys gas samples.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 19, 2014
    Inventors: Yonquan Li, Daniel E. Glenn, K. Stephen Johnson, JR., Dieter Kita