Apparatus and method for sampling a liquid

Details Apparatus and method for sampling a liquid Apparatus and method for sampling a liquid

1983-12-06

1985-07-09

Miles, Tim

Measuring and testing

Sampler, sample handling, etc.

Withdrawing through conduit or receptacle wall

G01N 114

Patent

active

045274363

ABSTRACT:
An apparatus for sampling liquids flowing in closed pipes includes a piston (3) and cylinder (4) linked to a manifold with an inlet valve (7) leading to the pipeline (15) and a delivery valve (10) leading to a collection bottle (12). With valve (7) open, reciprocation of the piston flushes the apparatus of old liquid. Cylinder (4) is then fully charged, valve (7) closed and the valve (10) opened so that, on the next stroke of piston (3), the contents of the cylinder (4) is discharged into collection vessel (12). A controller (20) synchronizes the movements of the valves and piston. A variation includes a return valve to enable liquid to be recirculated back to the pipeline, and also an apparatus with a moving probe (14), synchronized to the movement of piston (3). The apparatus can use pneumatic controls.

REFERENCES:
patent: 2872817 (1959-02-01), Pitts
patent: 2994224 (1961-08-01), Brown
patent: 3276263 (1966-10-01), Keeney, Jr.
patent: 3412612 (1968-11-01), Carr
patent: 3901653 (1975-08-01), Jones et al.
patent: 3985028 (1976-10-01), Yoshida
patent: 4269064 (1981-05-01), Johnson et al.
patent: 4418581 (1983-12-01), Jones

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