On-line sampler

Details On-line sampler On-line sampler

1979-05-31

1981-05-26

Yasich, Daniel M.

Measuring and testing

Measuring vessel

G01N 112

Patent

active

042690641

ABSTRACT:
On-line samplers using a piston having its rod reciprocally mounted in a tubular member which reciprocates in a passage, at least the piston and its rod adapted to project out of said passage into the line in which fluid to be sampled is flowing. Upon return of the piston and the tubular member into the passage, a constant volume of sample between the annular faces of the piston and the tubular member is taken into the passage, from which the sample is discharged under positive pressure by moving one of said annular faces into substantially face-to-face contact with the other annular face.

REFERENCES:
patent: 2906126 (1959-09-01), Brown
patent: 3200649 (1965-08-01), Peterson
patent: 3218868 (1965-11-01), Gill
patent: 3229527 (1966-01-01), Johnson
patent: 3469453 (1969-09-01), Nelson
patent: 3681996 (1972-08-01), Crist
patent: 3813945 (1974-06-01), Crumal
patent: 4009617 (1977-03-01), Johnson

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