Sample collection apparatus

Measuring and testing – Sampler – sample handling – etc. – Capture device

Patent

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Details

7386491, 366332, 74512, G01N 110, B01F 726

Patent

active

044035195

ABSTRACT:
Sample collection apparatus is disclosed wherein the preferred and illustrated embodiment includes a cylinder enclosing a piston which defines a storage chamber below the piston. The storage chamber is provided with an inlet in a cylinder head at the lower end of the cylinder. The storage chamber is maintained under pressure by pressurizing the opposite side of the piston. A stirring disc is located in the storage chamber. The stirring disc is in the form of a plate, and it is agitated by a rod connected to it. This stirs the sample to prevent separation into strata of different ingredients. The rod connected to the stirring disc passes through the head at one end of the cylinder and extends from it. In one embodiment, the rod is attached to a small piston which is pressurized in a cylinder to be driven in one direction or the other to stir the sample. In another embodiment, the rod extends downwardly in a surrounding tubular wall and is aligned therewith, and supports a foot operated treadle which can be pumped by the user to stir the sample.

REFERENCES:
patent: 918508 (1909-04-01), Colman
patent: 1228934 (1917-06-01), Leo
patent: 2204867 (1940-06-01), Rehback
patent: 2770364 (1956-11-01), Honea
patent: 2831606 (1958-04-01), Alters
patent: 2942296 (1960-06-01), Hewatt
patent: 3368697 (1968-02-01), Carlson
patent: 3793888 (1974-02-01), Rosenwald
patent: 4172670 (1979-10-01), Welker
patent: 4286515 (1981-09-01), Baumann

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