Device for sterilizing a thermoplastic strip used for the hot-fo

Details Device for sterilizing a thermoplastic strip used for the hot-fo Device for sterilizing a thermoplastic strip used for the hot-fo

1982-02-12

1985-04-23

Marcus, Michael S.

Package making

Combined

219 1061R, 219 1071, 219388, 219478, 219480, 219486, 219494, 422 22, 422307, 493 5, 493 29, 53426, B65B 5508, B65B 5506

Patent

active

045121338

ABSTRACT:
An apparatus for sterilizing a thermoplastic strip moving forward stepwise and used in the production of hot-formed containers which, after forming, are filled and sealed in a sterile atmosphere, wherein prior to the strip softening operation, the surface of said strip which is subsequently to constitute the inside face of the containers, is exposed evenly and intermittently, in successive portions and for a very short period of time, to a temperature higher than that of the softening point of the said thermoplastic strip and which is dependent on the desired extent of bacterial destruction.

REFERENCES:
patent: 2122741 (1938-07-01), Haddad
patent: 2332099 (1943-10-01), McKinnis
patent: 2509258 (1950-05-01), Wing
patent: 3066211 (1962-11-01), Vogt
patent: 3398252 (1968-08-01), Bock et al.
patent: 3530641 (1970-09-01), Bergstrom
patent: 3801278 (1974-04-01), Wagner et al.
patent: 4155786 (1979-05-01), Corbie
patent: 4377738 (1983-03-01), Berg

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