Measuring and testing – Gas analysis – Solid content of gas
Patent
1973-09-19
1976-10-05
Queisser, Richard C.
Measuring and testing
Gas analysis
Solid content of gas
55270, G01N 1502
Patent
active
039837432
ABSTRACT:
An apparatus for the collection of particles from a gas containing particles which comprises a first means for directing the flow of said gas toward a second means for collection of at least a portion of said particles by the process of impaction, the first means containing inlet means which comprises at least one perforation having a length dimension which is greater than its width dimension and a third means between and contacting said first and second means and having an inner wall, which is a smooth closed curve, the third means being located relative to the inlet means and the third means having a configuration such that a substantial number of the streamlines of the flow of said gas after the impaction of at least a portion of said particles in said gas with the second means are in substantial parallelism to the curve of the wall of the third means; the first, second and third means forming an enclosed volume having the inlet means and outlet means for exit of the gas after the impaction of at least a portion of the particles in the gas with the second means.
REFERENCES:
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patent: 3001914 (1961-09-01), Andersen
patent: 3222925 (1965-12-01), Kracke et al.
patent: 3576721 (1971-04-01), Mason
patent: 3606738 (1971-09-01), Kraus
patent: 3693457 (1972-09-01), Pilat
patent: 3795135 (1974-03-01), Andersen
Chemical Engineering Progress, "Three Multi-Stage Stack Samplers," Holland et al., vol. 69, No. 6, June 1973, pp. 93-95.
Journal of Nuclear Science and Tech., "Performance of an Improved Air Sampler," Fukuda et al., vol. 7, No. 9, Sept. 1970, pp. 450-457.
Applied Microbiology, "Novel Multi-Slit Large Volume Air Sampler," Buchanan et al., vol. 16, No. 8, Aug. 1968, pp. 1120-1123.
Marple Virgil Alan
Olin John George
Griswold Gary L.
Kreitman Stephen A.
Queisser Richard C.
Sierra Instruments, Inc.
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