Liquid filtering device

Details Liquid filtering device Liquid filtering device

1975-10-22

1977-09-13

Lutter, Frank W.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Fluid pressure responsive

55482, 55520, 210 99, 210111, 210130, 210232, 210253, 210255, 210261, 210262, 210282, 210317, 210339, 210340, 210488, 210494M, 2104971, B01D 3500, B01D 3514

Patent

active

040480712

ABSTRACT:
The peripheral surface of a coil of a filter web wound about a hollow shaft is covered by a liquid impervious flexible coating, and the outer periphery of a first end of the coil is secured to a supporting disc so that when liquid to be filtered is caused to pass through the coil in the axial direction thereof, the convolutions of the coil near a second end expand radially outwardly to trap contaminants in the spiral gap. Purified liquid collected at the first end of the coil is discharged through the hollow shaft. The filter unit is constructed such that a number of units can be readily connected in series.

REFERENCES:
patent: 2141903 (1938-12-01), Brundage
patent: 2173978 (1939-09-01), Pennebaker
patent: 2647637 (1953-08-01), Leet
patent: 2868383 (1959-01-01), Nicolls
patent: 2895615 (1959-07-01), Oathout
patent: 2928547 (1960-03-01), Lawrence
patent: 3146757 (1964-09-01), Heymann et al.
patent: 3722696 (1973-03-01), Dwyer

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