Extruding machine and end products

Details Extruding machine and end products Extruding machine and end products

1978-11-22

1980-03-04

Pavelko, Thomas P.

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to heat or cool

264328, 264334, 425543, B29H 1900

Patent

active

041915224

ABSTRACT:
A molding apparatus, using raw material substantially comprised of crumbed rubber tires, and producing end products of durability and structural integrity. Products such as fence posts and dimensioned pieces like dimension-lumber products, have a hardened, dense outer wall structure surrounding a comparatively less dense and relatively porous central core, with the attendent structure integrity advantages of tubular and hollow-walled products. Heat fused raw material is fed under pressure, as from a screw extruder mechanism, through selectively controlled input valves to mold bodies, with the mold bodies carried in a chilled environment to establish fluid flow paths and hardening sequences leading to the desired end product body structure.

REFERENCES:
patent: 93972 (1869-08-01), Divine
patent: 840213 (1907-01-01), Holoubek
patent: 2917776 (1959-12-01), Dorman
patent: 3477101 (1969-11-01), Fritsch
patent: 3897184 (1975-07-01), Woodburn

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