Measuring and testing – Sampler – sample handling – etc. – Flow divider – deflector – or interceptor
7386321, 7386354, 7386381, 7386385, G01N 120, G01N 108
Apparatus for collecting a sample of particulate matter from a pneumatic conveyer system. A sample cup is positioned in the stream of gas carrying the particulate matter with the opening of the cup facing the gas stream. A foreshortened hollow duct-shaped collector element is positioned above the cup and aligned therewith. The transverse interior dimensions of the cup and collector are about the same. This positioning of the collector allows the particulate sample to settle into the cup and substantially prevents the sample from being blown out of the cup by the stream of gas which can be a serious problem when the gas stream velocity is relatively high and the collector element is not used. If it is desired to remove the sample cup through an opening in the wall of the pneumatic conveyer, a shield is provided between the collector element and the wall to substantially prevent the sample from being blown out of the cup by the stream of gas as the cup is being withdrawn.
patent: 3735641 (1973-05-01), Bink et al.
patent: 4024765 (1977-05-01), Abonnenc
patent: 4399710 (1983-08-01), Schneider
patent: 4426888 (1984-01-01), Smith
patent: 4433587 (1984-02-01), Risdal
patent: 4625570 (1986-12-01), Witherspoon et al.
"Model 261 Automatic Solid Material Sampler," Sales Brochure by Anacon Inc; 3 pages, published by 10-23-1986.
Schematics of an Auto Sampler System, Drawing No. C-200674, dated 11-10-83; and a Sampler Assembly, Drawing No. C-200626, dated 6-11-83; each one sheet.
Myers Charles J.
Parth William H.
Schilling Edward E.
Stevens Timothy S.
The Dow Chemical Company
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