Sampler for dry materials

Details Sampler for dry materials Sampler for dry materials

1984-09-07

1986-01-07

Levy, Stewart J.

Measuring and testing

Sampler, sample handling, etc.

Flow divider, deflector, or interceptor

7386353, 7386385, 7386386, G01N 120

Patent

active

045627479

ABSTRACT:
A sampler for communicating with the interior of a vessel containing dry granular or powder materials extracts a sample of the material and conveys it to a point of collection. The sampler includes a tubular probe having an inlet opening toward an inner end and the probe is reciprocable into and out of the vessel for a flow of material into the inlet and through the probe to an outlet from the probe. To assist the material flow a jet of fluid is introduced into the inner end of the probe to aspirate material into the inlet opening and convey it through the probe, and when the probe is retracted from the vessel the jet purges the same of residual material. One or more valves are provided to control the jet of fluid and enable a momentary flow of fluid outwardly of the inlet opening when the probe is retracted to clear the opening of any material lodged therein.

REFERENCES:
patent: 3555910 (1971-01-01), Spence et al.
patent: 3659461 (1972-05-01), Thompson
patent: 3747411 (1973-07-01), McDermott et al.
patent: 3786682 (1974-01-01), Winter et al.
patent: 4032395 (1977-06-01), Burnette
patent: 4059019 (1977-11-01), Wurster et al.
patent: 4082004 (1978-04-01), Weber et al.
patent: 4375170 (1983-03-01), Sperry, III et al.
patent: 4432674 (1984-02-01), Klose et al.
patent: 4433587 (1984-02-01), Risdal
patent: 4479393 (1984-10-01), Shores

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