Diaphragm filter press

Claim 1

IN A DIAPHRAGM FILTER PRESS FOR WITHDRAWING LIQUID FROM A SUSPENSION CONTAINING MATERIAL TO BE PRESSED INTO A CAKE, A PERIPHERAL WALL FORMED BY A PLURALITY OF ABUTTING SEPARABLE RIM-LIKE RIGID SUPPORT ELEMENTS COMPRISING, A FILTER SUPPORT AND A DIAPHRAGM SUPPORT, A FILTER SUPPORTED BY SAID FILTER SUPPORT ADJACENT SAID DIAPHRAGM SUPPORT AND DEFINING WITH SAID FILTER SUPPORT AT LEAST A PORTION OF A FILTRATE CHAMBER ADAPTED TO RECEIVE AND DISCHARGE LIQUID FILTERED THROUGH SAID FILTER, AN ELASTIC DIAPHRAGM SUPPORTED BY SAID DIAPHRAGM SUPPORT ADJACENT SAID FILTER SUPPORT AND DEFINING WITH SAID DIAPHRAGM SUPPORT AT LEAST A PORTION OF A PRESSURE CHAMBER ADAPTED TO RECEIVE AND DISCHARGE A PRESSURE MEDIUM, SAID FILTER AND SAID DIAPHRAGM DEFINING THEREBETWEEN WHEN THE SUPPORTS ARE IN ABUTTING RELATIONSHIP, A CHAMBER FOR RECEIVE ING SAID SUSPENSION UNDER PRESSURE, THEREBY EXPANDING SAID DIAPHRAGM TO INCREASE THE SIZE OF SAID SUSPENSION CHAMBER AND EXERTING FORCE OF SAID DIAPHRAGM ON THE MATERIAL IN SAID SUSPENSION CHAMBER, AT LEAST ONE OF SAID SEPARABLE ELEMENTS BEING MOVABLE TO OPEN SAID SUSPENSION CHAMBER FOR DISCHARGE OF MATERIAL REMAINING THEREIN.