Air sampler for clean rooms

Details Air sampler for clean rooms Air sampler for clean rooms

1993-01-25

1995-06-06

Williams, Hezron E.

Measuring and testing

Sampler, sample handling, etc.

With constituent separation

73 2805, 435294, G01N 1500

Patent

active

054212146

ABSTRACT:
A device for measuring airborne contaminants. The device includes a housing which includes an air passage chamber having an inlet and an outlet. An air movement mechanism, typically an impeller blade powered by a motor, is located within the air movement chamber to cause movement of air from the inlet to the outlet. A support is provided adjacent the outlet such that air passing through the air passage chamber will impinge upon the support. The support is formed such that it may hold standard, commercially available, collection elements. Control devices are provided to operate the air movement mechanism, and may include a timer which automatically ceases operation of the air movement mechanism after a predetermined time has expired, with this predetermined time being calculated to correspond to a predetermined or desired volume of air passed out of the air passage chamber. This arrangement eliminates the need to purchase specially designed collection elements, thus reducing the cost of determining if airborne contaminates are present.

REFERENCES:
patent: 3127329 (1964-03-01), Andersen
patent: 3684660 (1972-08-01), Kereluk et al.
patent: 3968012 (1976-07-01), Jones
patent: 3980524 (1976-09-01), Reuter
patent: 4663293 (1987-05-01), Hempel et al.

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