Sampling valve for drawing samples from tanks containing easily

Details Sampling valve for drawing samples from tanks containing easily Sampling valve for drawing samples from tanks containing easily

1981-10-13

1984-01-03

Goldstein, Herbert

Measuring and testing

Sampler, sample handling, etc.

Withdrawing through conduit or receptacle wall

7386385, 137240, G01N 110

Patent

active

044236417

ABSTRACT:
The invention relates to a sampling valve for drawing samples from a tank containing easily contaminated liquids. The valve closure member is of a material that is pierceable by a hypodermic needle. An outlet port is arranged so that a hypodermic needle may be inserted through such port and likewise through the closure member and the valve seat while the closure member closingly engages the valve seat. A sample is thus drawable through the hypodermic needle despite the valve being otherwise closed by reason of the closure member being in engagement with the valve seat.

REFERENCES:
patent: 3334648 (1967-08-01), Probst
patent: 3412613 (1968-11-01), Brown et al.
patent: 3638499 (1972-02-01), Saint-Andre
patent: 3779082 (1973-12-01), Galloway
patent: 3834415 (1974-09-01), Herron
patent: 3930413 (1976-01-01), Laird et al.
patent: 4199988 (1980-04-01), Riegger
patent: 4359908 (1982-11-01), Perras

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