Liquid sample collection apparatus

Details Liquid sample collection apparatus Liquid sample collection apparatus

1978-06-20

1979-10-30

Coe, Philip R.

Agitating

Stirrer within stationary mixing chamber

Rectilinearly reciprocable stirrer

366131, B01F 726

Patent

active

041726707

ABSTRACT:
A liquid sample collector is disclosed. It incorporates a cylinder having a piston therein to define a storage chamber. There is an inlet to the storage chamber. In the storage chamber, a stirring plate mounted on a rod agitates the sample to prevent stratification of the sample. It is mounted on a stirring rod which extends all the way through the chamber, the rod passing through a cylinder head at one end of the cylinder and through the piston. It is stirred by reciprocating the stirring rod. The piston is mounted on a piston rod and moves as controlled by a hydraulic system wherein it maintains a desired back pressure on the sample to avoid vaporization. An alternate embodiment is disclosed where both ends of the stirring rod are exposed to pressures which are reduced and equalized to prevent placing a force differential on the piston rod in the stirring device.

REFERENCES:
patent: 1493610 (1924-05-01), Darrah
patent: 2667407 (1954-01-01), Fenske et al.
patent: 2831606 (1958-04-01), Alters
patent: 3341076 (1967-09-01), Wasilewski et al.
patent: 3793888 (1974-02-01), Rosenwald

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