Patent Number: 6,167,767

Title: Automated sequential gas sampling system

Abstract: A gas sampling system includes a sample trapping module having a gas pump and a power supply, and a removable magazine that fits within a port of the trapping module. The magazine contains a non-volatile electronic memory, which controls operation of the trapping module, and has a rotating carousel for holding sample tubes. Individual sample tubes are sealed at each end by a cap that has a needle-pierceable septum, and contain a solid collector material to trap chemical and biological contaminants in a gas sample drawn through the sample tube. Individual sample tubes are moved into and out of a sampling location by incremental rotation of the carousel and, while at the sampling location, a pair of hollow bore needles are inserted through the sample tube end caps to allow the drawing of a gas sample through the tube.

Inventors: Mengel; R. William (Great Falls, VA), Albro; Thomas G. (Bel Air, MD), Berends, Jr.; John C. (Bel Air, MD), Marshall; Robert S. (New Market, MD), Sloop; Christopher D. (Mt. Airy, MD)

Assignee: RAI Corporation

International Classification: G01N 1/22 (20060101); G01N 33/00 (20060101); G01N 30/02 (20060101); G01N 30/00 (20060101); G01N 1/24 (20060101); G01N 1/40 (20060101); G01N 001/22 ()

Expiration Date: 01/02/2018