Universal zero-headspace extractor vessel

Details Universal zero-headspace extractor vessel Universal zero-headspace extractor vessel

1994-03-09

1995-11-28

Czaja, Donald E.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

422102, 7386462, 220580, 92 98R, 2104161, B01L 1100

Patent

active

054705355

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 mechanically. 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: 632830 (1899-09-01), Betzonick
patent: 2044452 (1936-06-01), Terry
patent: 3886800 (1975-06-01), Boehringer
patent: 4224858 (1980-09-01), Tsuchiyama
patent: 4604110 (1986-08-01), Frazier
patent: 4862754 (1989-09-01), Nimberger
patent: 4864877 (1989-09-01), Ortiz et al.
patent: 5000845 (1991-03-01), Solomon
patent: 5109712 (1992-05-01), Nimberger et al.
patent: 5152184 (1992-10-01), Schroeder

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