Box and method of covering a box edge

Details Box and method of covering a box edge Box and method of covering a box edge

1976-04-06

1977-04-12

Lake, Roy

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

53 42, 53184S, 93 551R, 156 69, 156 85, 156216, 229 55, 229 42, B31B 100

Patent

active

040168077

ABSTRACT:
The exposed edge of a box is covered by placing a strip of heat-shrinkable PVC around the box so that it projects axially beyond the box edge and heating the strip so that the projecting portion shrinks and bends over the box edge, covering it. The projecting portion can be made to project far enough so that, when the strip shrinks and bends, a portion protrudes inwardly beyond the box edge. That protruding portion is then pressed against the inner box wall by a fitted lid or mandrel. A second strip can then be applied in similar fashion and shrunk to form a guarantee seal between the box and lid. An end of the second strip is left free to provide a seal tearing grip.

REFERENCES:
patent: 2402943 (1946-07-01), Bogoslowsky
patent: 3358902 (1967-12-01), Emmert et al.

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