Sampler for flowing pressurized dry material

Measuring and testing – Sampler – sample handling – etc. – Flow divider – deflector – or interceptor

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Details

7386352, 7386383, G01N 120

Patent

active

044335873

ABSTRACT:
A sampler for dry material flowing under pressure in a flow duct including a tubular housing, mounting an air cylinder, the piston rod of which connects to a sample tube which is extendible from the housing and into the flow line, the sample tube having a plug forming an obstruction in its rear portion, the forward portion of the sample tube having a material receiving slot in one side facing upstream in the flow duct, and a bleed port on the downstream side of the sample tube adjacent the receiving slot, the sample tube having a discharge port adjacent the front face of the plug in the sample tube and aligned with an outlet opening in the tubular housing and with an outlet spout to which a sample collecting container may be attached, and a seal in the tubular housing spanning entirely across the receiving port and discharge port and the space therebetween on the sample tube and confronting the fluid pressure in the sample tube as the sample tube is withdrawn, until the discharge port opens to the outlet opening at the side of the housing.

REFERENCES:
patent: 1966712 (1934-07-01), Fisher et al.
patent: 2370260 (1945-02-01), Robisch
patent: 3066539 (1962-12-01), Coker et al.
patent: 3217547 (1965-11-01), Cordell et al.
patent: 3295171 (1967-01-01), Strange et al.
patent: 3319469 (1967-05-01), Hartung
patent: 3383924 (1968-05-01), Cordell
patent: 3442138 (1969-05-01), Hensel
patent: 3555910 (1971-01-01), Spence et al.
patent: 3659461 (1972-05-01), Thompson
patent: 3673700 (1972-07-01), Schalbel
patent: 3747411 (1973-07-01), McDermot et al.
patent: 4082004 (1978-04-01), Weber et al.

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