Sealable activated charcoal gas sampler

Details Sealable activated charcoal gas sampler Sealable activated charcoal gas sampler

1976-02-09

1977-09-06

Myracle, Jerry W.

Measuring and testing

Measuring vessel

G01N 122

Patent

active

040460142

ABSTRACT:
A rigid reuseable metallic tube is provided with sealing screws at either end, operable to deform malleable lead washers against a labyrinth pattern at the extreme tube ends. In one embodiment, a wire form is disposed within the tube with an annular portion conforming to the tube interior, and an elongated wire depending therefrom, for holding the charcoal in place. In another embodiment, wire screen discs hold the charcoal in place, and utilize elongated pegs to remove the screen and withdraw the charcoal. Plugs of glass wool may also be used to enclose the activated charcoal against the annulus and/or the screens. An orifice in the tube may be provided to restrict air flow through the charcoal. Alternatively, a needle valve and flow meter may be used to regulate flow. An alternative embodiment is reuseable, and utilizes sintered metallic plugs press fit into and against the metallic tube, thereby giving rise to advantageous methods for removal of the sampled gases.

REFERENCES:
patent: 1715854 (1929-06-01), Martyn
patent: 3311454 (1967-03-01), Kemeny et al.
patent: 3505022 (1970-04-01), Luckey
patent: 3522009 (1970-07-01), Borkenstein

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