Filter press flow control system for dewatering sludge

Filter press for thickening cellulose pulp or sludge

Filter press plate separation devices

Filter press with cake removing device

Filter press with weight-responsive bumping of filter plates

Filter presses

Filter relief valve assembly

Filter screen pack for extrusion die

Filter separator with heater

Filter system

Filter system for a liquid stream with automatic rapid back flus

Filter system for septic tank

Filter system for the lubricant of an internal combustion engine

Filter system having multiple filter elements and backflushing a

Filter unit for use in liquid purification apparatus

Filter unit with linked valve actuators

Filter units

Filter with a valve combination component

Filter with axially shiftable rotating backwash selector

Filter with laterally removable element and valve means