Closure member for a container

Details Closure member for a container Closure member for a container

1978-04-17

1980-02-26

Moy, Joseph Man-Fu

Envelopes, wrappers, and paperboard boxes

Paperboard box

End structure

229 45, 229 55, B65D 310

Patent

active

041901894

ABSTRACT:
A closure member, for a container, formed from corrugated paperboard, plastic, or other similar substance is provided. The closure member increases the strength of the container and the rigidity of the container sidewalls. In a preferred embodiment of the invention the edges of the closure member are flattened and formed into a depending skirt. The edge of the container sidewall is then rolled over the depending skirt to form a sealed unit. In a second embodiment of the invention, in which the edge of the closure member is not flattened, the closure member is inserted into the container and the edge of the container sidewall is rolled to form a support for the closure member. The edge of the closure member is sealed to the container sidewall in this second embodiment.

REFERENCES:
patent: 2141556 (1938-12-01), Reifsnyder
patent: 2168231 (1939-08-01), McLain et al.
patent: 2246426 (1941-06-01), Wickstrom
patent: 2336345 (1943-12-01), Carlson
patent: 2343716 (1944-03-01), Toscano et al.
patent: 2438430 (1948-03-01), Cosmo et al.
patent: 2458737 (1949-01-01), Salkowitz
patent: 3137432 (1964-06-01), Rein et al.
patent: 3322318 (1967-05-01), Felton, Jr. et al.
patent: 3346170 (1967-10-01), Carter
patent: 3949927 (1976-04-01), Smith et al.

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