Multiwalled container and method of making same

Details Multiwalled container and method of making same Multiwalled container and method of making same

1984-08-23

1989-01-10

Weaver, Sue A.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264513, 215 122, B29C 4514, B29C 4516, B29C 4906, B29C 4922

Patent

active

047972440

ABSTRACT:
A multiwalled plastic container and method for making the same is disclosed having a barrier liner and an outer wall providing structural support for the liner. The container provides increased protection against separation of the liner and structural wall especially at the rim defining the opening of the container. This is accomplished by a wrap around liner lip construction wherein the liner extends from the inside surface of the structural wall around the top rim surface of the wall and downwardly depends therefrom along the outer surface of the structural wall. To downwardly depending leg of the liner lip is recessed within the outer wall surface providing adding protection against liner separation.

REFERENCES:
patent: 2802309 (1957-08-01), Brune
patent: 3144167 (1964-08-01), Schultz
patent: 3703255 (1972-11-01), Wade
patent: 3869056 (1975-03-01), Valyi
patent: 4013748 (1977-03-01), Valyi
patent: 4079851 (1978-03-01), Valyi
patent: 4092391 (1978-05-01), Valyi
patent: 4162883 (1979-07-01), Sauer
patent: 4256449 (1981-03-01), Sauer
patent: 4267928 (1981-05-01), Curry, Jr.
patent: 4309380 (1982-01-01), Sauer

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