Roll assembly for use in profiling film

Details Roll assembly for use in profiling film Roll assembly for use in profiling film

1975-05-07

1976-08-03

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Press forming means, press reshaping means, or vulcanizing...

425369, B29C 1700

Patent

active

039726711

ABSTRACT:
Disclosed is a roll assembly for use in the profiling of film of plastics material. The assembly is characterized by conduits, passageways, and spaces, by means of which heating fluid may be fed to and removed from the assembly in a selective manner along the length of the assembly to facilitate differential heating. This is a very advantageous facility where, for any reason, operating conditions would otherwise give rise to uneven profiling.

REFERENCES:
patent: 2752632 (1956-07-01), Winstead
patent: 3313002 (1967-04-01), Wyeth
patent: 3857664 (1974-12-01), Johnson et al.

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