Heat-shrunk protective packaging for multiple units

Details Heat-shrunk protective packaging for multiple units Heat-shrunk protective packaging for multiple units

1990-04-23

1991-09-17

Gehman, Bryon P.

Special receptacle or package

Shrink film package

206499, 206620, 206634, 221305, B65D 7108, B65D 6528

Patent

active

050486870

ABSTRACT:
A number of inner packages are formed into a unit and wrapped in an outer package. The combination of the inner and outer packages allows the package to hold its shape after the outer package is opened. The outer package is formed by wrapping the inner package unit in a tubular outer wrap, and sealing the top and bottom surfaces. The outer wrap, or at least the material for the top and bottom panels of the outer package, is made of a contractible or heat shrinkable flexible plastic film which is contracted or heat shrunk to maintain and hold the inner package unit in a tightly packed condition. Deformation of the outer package is more effectively prevented and makes the outer package easy to handle. An opening in the outer package is formed by perforation lines in two side panels and a top or bottom panel. The perforation lines may extend the entire height of the outer package. The panel sections between these perforation lines form dust flaps after opening. The outer package is opened and the inner packages are removed individually.

REFERENCES:
patent: 1329056 (1920-01-01), Mesler
patent: 2020799 (1935-11-01), Randall
patent: 2835378 (1958-05-01), Sramek
patent: 2867368 (1959-01-01), Kaplan
patent: 2981455 (1961-04-01), Cope
patent: 3014634 (1961-12-01), Humphrey et al.
patent: 3047140 (1962-07-01), Robins
patent: 3141602 (1964-07-01), Anderson
patent: 3237837 (1966-03-01), Vizethann
patent: 3273302 (1966-09-01), Walter
patent: 3286830 (1966-11-01), Robb, Jr.
patent: 3315875 (1967-04-01), Praetorius
patent: 3458036 (1969-07-01), James
patent: 3804235 (1974-04-01), Anderson

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