Filtering debris from molten plastic

Details Filtering debris from molten plastic Filtering debris from molten plastic

B - Operations, Transporting

29

C

B29C 47/68 (2006.01) B01D 29/05 (2006.01)

Patent

CA 2086134

ABSTRACT OF THE DISCLOSURE A filter for removing debris from a flow of molten plastic includes a cartridge containing a screen and a holder which seats one face of the cartridge. The flow of molten plastic is directed at an acute angle through the screen producing a filtered plastic flow through a downstream face of the screen and a flow of debris separated from the filter plastic along the upstream screen face. A compartment extends along the upstream screen face and accumulates the separated debris. A passage in the holder communicates with the debris-accumulating compartment and discharges the accumulating debris. A cooling mechanism regulates the rate at which debris is discharged. - 18 -

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