Filter arrangements

Details Filter arrangements Filter arrangements

1975-05-22

1976-12-14

Hart, Charles N.

Liquid purification or separation

Filter

Movable medium

210402, 210DIG3, B01D 3304

Patent

active

039974480

ABSTRACT:
A tracking device for a travelling band filter. The band or belt tends to drift laterally as it travels along its path. This is corrected by fitting one of a number of rollers carrying the belt with opposite-handed helical formations to pull the belt in opposite directions. The helices work on tension bands in the edges of the belt there being a pair of helices, with a dead band between, for each tension band.

REFERENCES:
patent: 2592581 (1952-04-01), Lorig
patent: 2812064 (1957-11-01), Siebenthal
patent: 3075647 (1963-01-01), Davis
patent: 3116244 (1963-12-01), Davis et al.
patent: 3144409 (1964-08-01), Jauhola
patent: 3819474 (1974-06-01), Holz

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