Envelopes – wrappers – and paperboard boxes – Paperboard box – Having means to facilitate opening the box by severing box...
Patent
1994-10-25
1996-04-16
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
Having means to facilitate opening the box by severing box...
229239, 229924, B65D 1746
Patent
active
055074324
ABSTRACT:
An improved system for separating a corrugated fiberboard panel along a separation line is disclosed. A corrugated fiberboard panel has an inner liner and an outer liner with a corrugated medium sandwiched therebetween. At least two spaced-apart strings are located in the panel beneath the outer liner. The strings are located on opposite sides of a separation line defined on the panel. A pull tab is located in the outer liner, and is connected to at least one of the strings such that when the pull tab is pulled away from said panel and transverse to the separation line at least one of the strings cuts through at least a portion of the panel, and at least one of the other strings acts as a guide to define the location of the cut. The system is economical to produce and is readily incorporated in the corrugated fiberboard during its manufacture. It is also a reliable system that is easy to use.
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"Handbook of Corrugated & Solid Fiberboard Boxes", Container Corporation of America, p. 21 (1974).
Elkins Gary E.
Industrial Adhesives, Inc.
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