Liquid purification or separation – With means to add treating material – Chromatography
Patent
1981-12-09
1983-06-21
Adee, John
Liquid purification or separation
With means to add treating material
Chromatography
55386, B01A 1502
Patent
active
043893139
ABSTRACT:
This invention pertains to a chromatographic column and seal structure applicable to at least one end of a packed tubular column and formed either from metal or very hard plastic material such as a polyamidearamide resin, the seal members per se which are formed from such materials having a body circular in cross-section with a straight-through passage from end-to-end of uniform diameter and an annular rib on the body intermediately of opposite end portions, one of which is cylindrical for press-fitting into one end of the tubular column and the other end being frusto-conical and tapering away from the rib. A fitting or coupling is connectable to the end of the column by being threaded thereto and is provided with a seat against which one end of the rib of the seal abuts and also a dead space cavity inward from the seat which is conically complementary to the frusto-conical end of the seal and receives the same in close conformity when the fitting or coupling is tightly threaded against the end of the column and thereby tightly clamps the rib of the seal between the seat in the fitting and the end of the column.
REFERENCES:
patent: 4026803 (1977-05-01), Abrahams et al.
patent: 4083702 (1978-04-01), Hartigan et al.
patent: 4162977 (1979-07-01), Guillemin et al.
patent: 4187177 (1980-02-01), Stahl
patent: 4257894 (1981-03-01), Barney
patent: 4283280 (1981-08-01), Brownlee
patent: 4289620 (1981-09-01), Hara
Charney Andrew R.
Kercher Paul W.
Stone Stanley A.
Adee John
Just C. Hercus
Scientific Systems, Inc.
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