Filter device for flowable plastic material

B - Operations – Transporting – 29 – C

Patent

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Details

18/742

B29C 47/68 (2006.01) B01D 29/09 (2006.01) B29B 17/02 (2006.01)

Patent

CA 2278861

A filter device for separating particulate material from a stream of flowable plastics; the device comprises a body member having at least a filter chamber and a flow path extending between inlet and outlet sides. A filter band transversally extends in said filter chamber, across the flow path, being supported by a back-plate having a perforated area. An axially movable valving member comprising a flow passage for the plastic material, is provided into the chamber, and an actuator to axially move the valving member between an advanced and a retracted position in which the valving member connects respectively disconnects the flow passage from the inlet or the outlet sides of the device, and for sealingly clamping the filter band peripherally around the perforated area of the back-plate.

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