Liquid purification or separation – Flow – fluid pressure or material level – responsive – Check valve
Patent
1990-02-06
1991-05-28
Cintins, Ivars
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Check valve
210258, 210266, 210282, 2104163, C02F 900
Patent
active
050192523
ABSTRACT:
A portable water-purifying means comprising an oblong pump room containing a hand pump therein and an oblong water-purifying room containing a water-purifying means therein and being equipped on its upper side with a water outlet in a casing equipped with a water inlet. The pump room and the water-purifying room are arranged in parallel to each other with a partition separating the two rooms, and these rooms communicate with each other through a passage arranged on their bottom sides. The water inlet and the passage are provided respectively with check valves which operates to limit flow of water to the direction from the inlet to the water-purifying room.
REFERENCES:
patent: 2670081 (1954-02-01), Quinn
patent: 4636307 (1987-01-01), Inoue et al.
Kamei Eiichi
Kanda Yasuo
Ogawa Tadashi
Shimomura Yasushi
Cintins Ivars
Iwatani & Co. Ltd.
LEC, Inc.
Ube Industries Ltd.
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