Filter press apparatus

Details Filter press apparatus Filter press apparatus

1998-05-27

2000-03-14

Savage, Matthew O.

Liquid purification or separation

With repair or assembling means

Sliding or rolling on guide means

210346, 210351, 210450, 100197, 100211, B01D 2941

Patent

active

060368594

ABSTRACT:
Filter press apparatus comprises a plurality of substantially parallel filter plates assembled as a unit and located within a substantially rigid outer shell to provide a closed vessel to which can be supplied medium under pressure to be filtered via the plates, a substantially impermeable primary membrane lining the shell for forming a substantially incompressible boundary wall to the unit on supply of pressure medium to the space between the primary membrane and the shell, and a secondary membrane having an intermediate extent between the primary membrane and the unit which, with the primary membrane urged towards the unit, moves axially with the unit and slides relative to the primary membrane to eliminate stress in the primary membrane during the compression stage.

REFERENCES:
patent: 2988222 (1961-06-01), Hagdahl
patent: 5482623 (1996-01-01), Pierson

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