Liquid purification or separation – Flow – fluid pressure or material level – responsive – Fluid current controlled cyclic system
Patent
1987-12-07
1990-03-20
Fisher, Richard V.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Fluid current controlled cyclic system
210136, 210284, 210297, 210316, 210359, B01D 1504
Patent
active
049099329
ABSTRACT:
A liquid filtration device includes a tubular container having an end wall at one end with an emptying orifice therein and a detachable cover closing the opposite end. A filling orifice is disposed in the container adjacent to the cover and a fixed filter is secured in the container immediately adjacent the emptying orifice. A movable filter is disposed in the container for movement between the cover and the fixed filter by means of an operating component connected to the movable filter and extending outwardly of the container.
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patent: 4048071 (1977-09-01), Yamada et al.
patent: 4054526 (1977-10-01), Muller
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patent: 4283283 (1981-08-01), Zimmerman
patent: 4287057 (1981-09-01), Stanley
patent: 4389311 (1983-06-01), LaFreniere
patent: 4430226 (1984-02-01), Hegde et al.
patent: 4624789 (1986-11-01), Fan et al.
patent: 4635663 (1987-01-01), Rollins et al.
Drodge Joseph
Fisher Richard V.
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