Packaging modular envelope including self-sealing closure means

Details Packaging modular envelope including self-sealing closure means Packaging modular envelope including self-sealing closure means

1988-06-02

1990-04-10

Elkins, Gary

Envelopes, wrappers, and paperboard boxes

Paperboard box

With closure for an access opening

229 23BT, B65D 532

Patent

active

049152912

ABSTRACT:
The envelope essentially comprises a tubular body (1), of given cross-section, provided with outwardly turned edges (2).
With the tubular body (1) two box-like bodies (3,3') cooperate, having mating cross-sections, and provided with inwardly turned edges (4) and adapted to operate as closure covers for the tubular body (1).

REFERENCES:
patent: 695205 (1902-03-01), Goodnow
patent: 1473432 (1923-11-01), Huye
patent: 1771760 (1930-07-01), MacLellan
patent: 2580586 (1952-01-01), O'Reilly
patent: 2734676 (1956-02-01), Lawrence
patent: 2800266 (1957-07-01), Kelly
patent: 2887264 (1959-05-01), Fallert
patent: 2902202 (1959-09-01), Fallert
patent: 2983423 (1961-05-01), Vail
patent: 3286901 (1966-11-01), Anderson
patent: 4531669 (1985-07-01), Osborne

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