Prefilt directing impermeable membrane of varying force exertion

Details Prefilt directing impermeable membrane of varying force exertion Prefilt directing impermeable membrane of varying force exertion

1978-11-15

1981-01-20

Hart, Charles N.

Liquid purification or separation

Filter

With movable means to compress medium

210405, 210456, 100211, B01D 2942

Patent

active

042461227

ABSTRACT:
A membrane pressure filter comprises a pressure chamber divided into non-intercommunicating first and second compartments by a substantially upright impermeable elastic membrane, said first compartment containing a filtering surface, and said impermeable elastic membrane either being constructed in a manner such that or co-operating with means such that, in use, when the material in said first compartment has a specific gravity which is greater than the specific gravity of the material in said second compartment, said membrane is constrained to adopt a shape such that the surface of the membrane opposite the filtering surface is substantially parallel to the filtering surface.

REFERENCES:
patent: 3387630 (1968-06-01), Routson
patent: 3753499 (1973-08-01), Gwilliam
patent: 3782554 (1974-01-01), Gwilliam
patent: 3805961 (1974-04-01), Clark et al.
patent: 3900403 (1975-08-01), Randle et al.

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