Apparatus for continuous production of elongated foam plastics b

Details Apparatus for continuous production of elongated foam plastics b Apparatus for continuous production of elongated foam plastics b

1972-05-01

1976-03-09

Baldwin, Robert O.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Endless surface means to shape fluent material

264 462, 264 465, 425224, 425329, 425817C, B29D 2704

Patent

active

039429253

ABSTRACT:
Continuous foam blocks with rectangular cross-section are produced on a side-limited conveyor band by feeding a foamable mixture to a cover foil travelling with said conveyor band and covering the free surface of the mixture with a bearing layer not earlier than immediately after the supply of the mixture and not later than before the zone in which a skin would be formed on the free surface of the block.

REFERENCES:
patent: 1248453 (1917-12-01), Carr
patent: 3178768 (1965-04-01), Edberg
patent: 3228062 (1966-01-01), Claus
patent: 3240846 (1966-03-01), Voelker
patent: 3354503 (1967-11-01), Joseph et al.
patent: 3530535 (1970-09-01), Sachs
patent: 3560599 (1971-02-01), Ferstenberg
patent: 3590425 (1971-06-01), Lieberman
patent: 3655311 (1972-04-01), Porter
patent: 3681157 (1972-08-01), Smock
patent: 3702274 (1972-11-01), Wooler
patent: 3761209 (1973-09-01), Hanton
patent: 3841811 (1974-10-01), Peille

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