Liquid purification or separation – With heater or heat exchanger – Flow line connected in series with distinct separator
Patent
1996-10-24
1997-12-16
Walker, W. L.
Liquid purification or separation
With heater or heat exchanger
Flow line connected in series with distinct separator
210338, 210458, 210499, 2989662, 2221462, 22218908, B01D 2958
Patent
active
056980965
ABSTRACT:
A water filter of stainless steel material is intended for use in a drinking water machine and is composed of a plurality of hollow filtration cylinders and hollow support cylinders. The filtration cylinders are different in diameter and have a minutely perforated periphery capable of separating solid particles and impurities from water. The support cylinders are different in diameter and are provided respectively with a periphery having a plurality of through holes. The support cylinders are dimensioned differently such that they can be fitted into one another, and that they can be fitted into the filtration cylinders, and further that one of the support cylinders is smallest in diameter and is provided at the top end thereof with a threaded portion engageable with a nut for fastening the filtration cylinders and the support cylinders together securely.
REFERENCES:
patent: 206938 (1878-08-01), Emory
patent: 1044074 (1912-11-01), Nugent
patent: 1194275 (1916-08-01), Christianson
patent: 2651414 (1953-09-01), Lawson
patent: 2750045 (1956-06-01), Hoffmann et al.
patent: 4731177 (1988-03-01), Hemman
patent: 4909937 (1990-03-01), Hoffmann et al.
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