Universal zero-headspace extractor vessel and rotator

Details Universal zero-headspace extractor vessel and rotator Universal zero-headspace extractor vessel and rotator

1993-06-17

1997-03-04

Jenkins, Robert W.

Agitating

By movement of support for removable mixing chamber

Mixing chamber secured to support

366235, B01F 902

Patent

active

056072341

ABSTRACT:
This invention provides a pressurizable zero-headspace extractor vessel useful in preparing mixtures of solid- and liquid-phase material for constituent analysis, for example for preparing environmental samples for analysis of toxic contaminants. The inventive extractor vessel has a sample chamber pressurizable either by gas or mechanical means. The sample chamber is constructed with a removable liner of polytetrafluorethylene to be resistant to both organic an metallic contaminants and has a more robust pressure-resistant support housing, in which the liner is a snug fit, formed of a structural material such as high-density polyethylene. The invention also provides a rotary agitation apparatus for rotating such extractors or bottles end-over-end, in which apparatus the bottles are mounted in a manner which automatically centers them on the axis of rotation.

REFERENCES:
patent: 2021261 (1935-11-01), Moore
patent: 3013776 (1961-12-01), Patterson
patent: 3138367 (1964-06-01), Raether
patent: 4201483 (1980-05-01), Franzke

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