Apparatus for continuously producing foamed material

Details Apparatus for continuously producing foamed material Apparatus for continuously producing foamed material

1975-05-23

1976-08-03

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Means casting fluent stock operably associated with shaping...

425329, 425817C, B29D 2704

Patent

active

039726673

ABSTRACT:
A liquid reaction mixture from which soft cellular material is derived is poured into a moving mold where it begins to expand. Beyond the point at which the reaction mixture is poured, the bottom wall of the mold is deformed between its sides and this causes the expanding mixture to flow laterally so that the mixture expands into a desired configuration. The foregoing process is carried out on a conveyor having an endless belt and rollers for deforming the upper pass of the belt between the sides thereof. The mold is a flexible film material which is supported on and propelled by the belt.

REFERENCES:
patent: 2675053 (1954-04-01), Clemens
patent: 3152361 (1964-10-01), Edwards
patent: 3488800 (1970-01-01), Kornylak
patent: 3496596 (1970-02-01), Buff
patent: 3655311 (1972-04-01), Porter
patent: 3659981 (1970-06-01), Ferstenberg
patent: 3832099 (1974-08-01), Berg

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