Plastic article or earthenware shaping or treating: apparatus – Including means advancing continuous length work through...
Patent
1975-11-24
1976-10-26
Lazarus, Richard B.
Plastic article or earthenware shaping or treating: apparatus
Including means advancing continuous length work through...
425316, 425378R, 264141, 264180, B29C 2500
Patent
active
039880850
ABSTRACT:
An apparatus and method for reducing molten thermoplastic material to substantially uniform shaped particles for storage, further handling, and use includes an elongated inclined liquid channel or flume for flow of a stream of cooling liquid and a material supply device operative to continuously direct a plurality of laterally spaced thin strips or ribbons of molten thermoplastic material into the stream of cooling liquid to be partially cooled thereby and a drum having a plurality of blade members for forming longitudinally spaced areas of reduced thickness in each of the strips or ribbons of material whereby the strips or ribbons of material break at the reduced thickness areas immediately or upon same becoming brittle by further cooling to a point that the particles are non-fusing with the strips or ribbons of thermoplastic material being supported during engagement thereof by the blade members. The uniform shaped particles are moved through flumes and selected paths for further cooling, drying, and handling for delivery of the particles to a place of storage or further use.
REFERENCES:
patent: 2153031 (1939-04-01), Zetzsche et al.
patent: 2311389 (1943-02-01), Hawks et al.
patent: 2619677 (1952-12-01), Ryan
patent: 3222719 (1965-12-01), Wagner et al.
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