Measuring and testing – Gas analysis – Solid content of gas
Patent
1975-08-12
1976-08-03
Swisher, S. Clement
Measuring and testing
Gas analysis
Solid content of gas
G01N 1500
Patent
active
039722260
ABSTRACT:
A slit impact air sampler for collecting viable organisms in air borne particles at a controlled rate. The rotating platform upon which a collecting plate is positioned can be rotated at ten different speeds through a variable speed transmission. The height of the slit above the collecting plate can be adjusted while maintaining the slit in a radial position to the plate.
REFERENCES:
patent: 2310871 (1943-02-01), Robertson
patent: 2312295 (1943-02-01), Dahlman et al.
patent: 3475951 (1969-11-01), Goetz
Mitchell Donovan Charles Philpin
Rountree Calvin Briggs
Marquis Harold L.
Swisher S. Clement
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