Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1980-09-11
1982-07-13
Swisher, S. Clement
Measuring and testing
Sampler, sample handling, etc.
Capture device
G01N 124
Patent
active
043388264
ABSTRACT:
An improved apparatus for collecting atmospheric samples, particularly air samples, comprises a sealed collapsible receptacle which includes a hollow body having a base, top and side walls. At least the side walls are constructed of a flexible material. A venting mechanism introduces the atmosphere surrounding the apparatus into the receptacle at a controlled rate. The receptacle includes means for progressively expanding after being compressed. This progressive expansion creates a vacuum within the receptacle, thereby aspirating a measured volume of atmosphere per unit of time through the venting mechanism. Further provided are means for removing a desired quantity or sample of the retained atmosphere from the receptacle, as required.
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patent: 3376868 (1968-04-01), Mondiadis
patent: 3742952 (1973-07-01), Magers et al.
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patent: 3875941 (1975-04-01), Adair
patent: 4040299 (1977-08-01), Snyder
patent: 4047526 (1977-09-01), Reynolds et al.
patent: 4191054 (1980-03-01), Jacoby et al.
Ellson Robert A.
Jacoby Marvin
Jacoby Robert E.
Jacoby Stuart W.
Air Test Labs, Inc.
Beiser Robert S.
Swisher S. Clement
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