Remotely actuated sampling apparatus

Details Remotely actuated sampling apparatus Remotely actuated sampling apparatus

1976-12-06

1977-09-27

Swisher, S. Clement

Measuring and testing

Measuring vessel

G01N 112

Patent

active

040503151

ABSTRACT:
Apparatus for taking liquid samples in a well at any desired level under the surface includes a bullet-nosed tubular body with a weighted lower end and an elongated sampling chamber. The chamber has a circular inlet opening at its upper end which is sealed at its upper surface by a ball-shaped valve member to keep liquid out of the chamber as the body is lowered in the well. The valve member is attached at its upper end to a rod member guided in the body and suspended by a cable. A sharp jerk on the cable when the body is at the desired depth releases a detent holding means between the rod and body and lifts the valve member off its seat so that liquid can enter the chamber. A floating ball in the chamber engages the bottom of the circular opening when the chamber is filled with liquid to seal in the sample and prevent its contamination by liquid at higher levels as the body is raised to the surface.

REFERENCES:
patent: 1210487 (1917-01-01), Kaul
patent: 1947592 (1934-02-01), Haller
patent: 2198116 (1940-04-01), Jurs
patent: 4004463 (1977-01-01), Puthoff

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