Liquid purification or separation – Sectional chamber press type – Medium clamped in joint
Patent
1990-12-04
1992-03-31
Dawson, Robert A.
Liquid purification or separation
Sectional chamber press type
Medium clamped in joint
210230, 210231, 210232, 100211, 100295, B01D 2521
Patent
active
051005484
ABSTRACT:
A membrane plate for filter presses including a supporting plate with a clamping rim elevated on both sides, a frame, and a membrane clamped in place between the supporting plate and the frame. The membrane is enclosed inwardly of the clamping rim between two approximately V-shaped diverging contact surfaces of the supporting plate and the frame and is capable of elastic deflection toward both sides of the membrane. To attain a high resistance to continuous stress, the membrane is provided inwardly of the clamping rim with a wavy or undulation zone wherein the undulation or wave crests extend in parallel to the clamping ring. At least one outer undulation or wave crest is enclosed between two contact surfaces, with this wave crest projecting with a back surface thereof into a flaring space defined by the contact surfaces lying in opposition to a pressure medium chamber of the filter press.
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European Search Report EP 90 12 1364.
Dawson Robert A.
Fortuna Ana
Rittershaus & Blecher GmbH
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