Envelopes – wrappers – and paperboard boxes – Wrapper – Bottle
Patent
1988-02-02
1989-02-28
Marcus, Stephen
Envelopes, wrappers, and paperboard boxes
Wrapper
Bottle
229171, 493 59, 493 80, 493128, B65D 546
Patent
active
048078042
ABSTRACT:
Disclosed is a carton formed from a unitary paperboard blank and having a collar-like lifting flange at one end thereof for receiving a lifting blade. The carton includes a tubular body having a number of side walls formed by axially-extending fold lines. The blank from which the carton is formed includes two or more transverse extending wall portions extending across two or more side walls of the carton. The wall portions are folded upon one another and upon two or more side walls of the carton so as to continuously overlie two or more side walls of the carton and the axial fold lines joining those side walls. Thus, an unbroken corner of the lifting flange overlies an outside corner of the carton. The invention is particularly useful with lifting blades having an L-shaped cross-section which mate with an outside corner of the carton and overlie two adjacent side walls thereof. The lifting flange forms a continuous blade-receiving pocket extending across at least two laterally adjacent side walls and the fold line connecting those side walls. Accordingly, a unitary portion of the lifting flange is provided at the portion of the pocket located at the outside corner of the carton to provide a lifting flange of improved strength and tear resistance. The blank from which the carton is formed and a method of scoring and folding the blank to form the carton are also disclosed.
REFERENCES:
patent: 1639793 (1927-08-01), Beyer
patent: 2474523 (1949-06-01), Guyer
patent: 2752032 (1956-06-01), Fish
patent: 3143272 (1964-08-01), Webb et al.
patent: 3236437 (1966-02-01), Johnson
patent: 3369652 (1968-02-01), Bebout
Falk Eric E.
Schwaner Jon M.
Elkins Gary E.
Inland Container Corporation
Marcus Stephen
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