Extruder with a cassette filter for molten plastic material

Details Extruder with a cassette filter for molten plastic material Extruder with a cassette filter for molten plastic material

1984-03-19

1985-04-16

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

With upstream screen or perforated plate for straining,...

Plural screens or plates

210387, 2104931, 425376R, B29F 304, B01D 2706

Patent

active

045113203

ABSTRACT:
A cassette filter for molten plastic comprising a filter screen movable transversely of the melt flow and enclosed between plates in a filter casing of an extruder. The superimposed plates are engaged in a guide passage and the inlet and outlet of the filter casing is sealed by cooling of the melt. The surface of the filter screen is clamped between a tooth-shaped surface of a plate and a cover member which interfits in the profile.

REFERENCES:
patent: 3458978 (1969-08-01), Davis
patent: 3465413 (1969-09-01), Rosaen et al.
patent: 4025434 (1977-05-01), Mlada

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