Patents by Inventor Daniel G. Laird

Daniel G. Laird 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).

  • 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