Patents Assigned to Sampling Technology, Inc.
  • Sodium sulfide analyzer
    Patent number: 4740473
    Abstract: The invention provides a method and apparatus for measuring the sodium sulfide content of liquid industrial process streams. According to this method, a sample of the liquid is passed through a heated filter to remove solids and reduce viscosity and a portion of the sample is then mixed with carbon dioxide to generate hydrogen sulfide gas. The hydrogen sulfide gas is separated from the reacted liquid sample, and a portion of the gas is mixed with dilution air and then analyzed quantitively for hydrogen sulfide.
    Type: Grant
    Filed: November 25, 1986
    Date of Patent: April 26, 1988
    Assignee: Sampling Technology, Inc.
    Inventor: Robert L. Tomlin
  • Low flow sampling and analysis system
    Patent number: 4738147
    Abstract: A method and apparatus are disclosed for measuring the gaseous content of industrial process gas streams. Gas is removed from the stream at a low flow rate, under 1 liter per minute, and is passed through a heated filter to remove particulates. The gas is then cooled to about 35.degree. to 70.degree. F. in order to condense water from the stream, and is passed through a metering pump which supplies a precisely metered amount of gas which can be mixed with air for dilution. The gas is then analyzed for the desired components.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: April 19, 1988
    Assignee: Sampling Technology, Inc.
    Inventor: Robert L. Tomlin
  • Gas sampling extractor and conditioning assembly
    Patent number: 4484481
    Abstract: A gas sampling extractor for extracting a stack gas sample for analysis. The gas sampling extractor includes a filter housing and an eductor in combination with gas conditioning apparatus for sampling and conditioning the emission pollutant content of a gaseous medium in a stack prior to introducing the sample gas to a measuring instrument for further analysis thereof.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: November 27, 1984
    Assignee: Sampling Technology, Inc.
    Inventors: Daniel G. Laird, James C. Laird, Robert L. Tomlin