Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Fluid pressure responsive
Patent
1999-01-08
2000-07-18
Walker, W. L.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Fluid pressure responsive
210351, 210411, 210450, 210455, 21049701, B01D 3300, B01D 3344
Patent
active
060902752
ABSTRACT:
A liquid filter includes a barrel defining a cylindrical water chamber having a neck at the middle, a raw water inlet at the bottom side, and a clean water outlet at the top side, a suspension board suspended in the water chamber, a pneumatic cylinder operated to reciprocate pressure means through the suspension board in and out of the neck of in cylindrical water chamber, bundles of fibers respectively suspended from the suspension board for removing solid matter from upward flow of water passing through, a weight board connected to the bundles of fibers and suspended in the water chamber below the neck, and a fabric filter suspended in the water chamber below the weight board, wherein the sizes of the filtering open spaces in the bundles of fibers are reduced when the pressure means is lowered into the neck; the sizes of the filtering open spaces in the bundles of fibers are expanded when the pressure means is lifted away from the neck.
REFERENCES:
patent: 224471 (1880-02-01), Moore
patent: 519565 (1894-05-01), Bommarius
patent: 4776962 (1988-10-01), Wakeman
patent: 4851136 (1989-07-01), Fanqing et al.
patent: 4937005 (1990-06-01), Shelstad
patent: 5984108 (1999-11-01), Choi
Cecil Terry K.
Walker W. L.
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