Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Patent
1980-02-11
1981-07-07
Smith, William F.
Gas separation
With nonliquid cleaning means for separating media
Solid agent cleaning member movingly contacts apparatus
55356, 55350, 55387, 23232R, 220379, 422 88, G01N 3106, B01D 4700, B01D 5330
Patent
active
042772591
ABSTRACT:
An air-sampling cartridge is disclosed for collecting organic compounds such as N-nitrosamines from air for analysis. The cartridge is formed by joining two injection-molded plastic parts: a generally cylindrical cartridge body into which air-pervious packings of granular adsorbent materials may be loaded, and a cartridge cap which is ultrasonically welded to the body to partially close one end of the cartridge. The cap and body define a cartridge with an inlet and outlet shaped to facilitate connection of the cartridge to a pump used to draw air samples through the cartridge, to allow connection of two or more cartridges in series, and to accommodate standard-sized syringes used in removing trapped compounds from the cartridge for analysis.
The cartridge also includes a retention clip integrally molded with the cartridge body and cap for permitting the cartridge to be attached to the clothing of a person during air-sampling. Also provided are two shipping caps which are held within storage wells on the cartridge body during air-sampling and which at other times are used to seal the inlet and outlet of the cartridge to prevent contamination of the adsorbent material and compounds trapped therein.
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patent: 4194884 (1980-03-01), Rounbehler et al.
Zip-Mark Corp., P.O. Box 4006, Jersey City, N. J., 1965, one page.
Potts Robert S.
Rounbehler David P.
Konkol Chris
Messenger Herbert E.
Neal James L.
Smith William F.
Thermo Electron Corporation
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