Paving material extrusion molding apparatus

Details Paving material extrusion molding apparatus Paving material extrusion molding apparatus

1977-12-07

1979-07-03

Lake, Roy

Plastic article or earthenware shaping or treating: apparatus

Utilizing subterranean feature as shaping means

404105, 425 64, B28B 1302

Patent

active

041598903

ABSTRACT:
A paving material extrusion molding apparatus for continuously laying or molding a paving material wherein the paving material supplied into hoppers is conveyed into a molding element by a plurality of screw conveyors, the paving material is compacted or consolidated by screw thrusts equal to the frictional force produced by the dead weight of the extrusion molding apparatus, a reaction force created by the compaction or consolidation is utilized to float off the entire extrusion molding apparatus, and a reaction force created by the conveyance of the paving material being continuously fed serves to move the extrusion molding apparatus along the predetermined path.

REFERENCES:
patent: 2447571 (1948-08-01), Ekenstam
patent: 2539063 (1951-01-01), Ekenstam
patent: 2707422 (1955-05-01), Canfield
patent: 2818790 (1958-01-01), Canfield et al.
patent: 3138079 (1964-06-01), Smith
patent: 3284867 (1966-11-01), Booth
patent: 3710695 (1973-01-01), Miller et al.
patent: 4014633 (1977-03-01), Goughnour

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