Plastic article or earthenware shaping or treating: apparatus – With mechanical means forming or expanding pores
Patent
1977-02-07
1978-03-21
Lazarus, Richard B.
Plastic article or earthenware shaping or treating: apparatus
With mechanical means forming or expanding pores
425 89, 425224, 425364R, B29D 2700, B29G 702
Patent
active
040801250
ABSTRACT:
An apparatus for the manufacture of blocks of expanded cellular material having an essentially circular cross section from foamable means which comprises a stationary generally U-shaped mold having two sides, a bottom and an open top and forming an elongated channel cavity having a circular cross section, conveyor means fitting into said channel cavity and having a downward inclination, means pouring the foamable mass onto the conveyor means at the upper end thereof, means for moving said conveyor means away from said pouring means, means for heating the conveyor means to the same temperature as the mold, a substantial portion of said conveyor means going through said mold, means for fitting the conveyor means within the mold whereby said foamable mass acquires the circular shape of the inner portion of the mold as it moves away from said pouring means and as it solidifies.
REFERENCES:
patent: 2886849 (1959-05-01), Brierley
patent: 3325573 (1967-06-01), Boon et al.
patent: 3496596 (1970-02-01), Buff
patent: 3672348 (1972-06-01), Ferstenberg
patent: 3751197 (1973-08-01), Petzetaris
patent: 3761209 (1973-09-01), Hanton
Lazarus Richard B.
Policastilla, S.A.
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