Light-tight package with circumferentially perforated end discs

Details Light-tight package with circumferentially perforated end discs Light-tight package with circumferentially perforated end discs

1999-08-27

2000-10-03

Gehman, Bryon P.

Special receptacle or package

For roll or reel

Flaccid wrapper

206413, B65D 8567

Patent

active

061260061

ABSTRACT:
A light-tight package for a roll (1) of light sensitive material has a central core (4) around which the material is wound, a flexible opaque leader (6) having a leading end attached to the outermost end of the material and a pair of flexible end discs (7,8) covering each end of the roll. Each end disc has an outer diameter greater than the outer diameter of the roll to provide peripheral portions which are folded axially inwardly against the outer surface of the roll. A concentric ring of perforations is provided within the peripheral portion to control the tear and ensure that any portions of material left by the tear will not interfere with rewinding of the roll.

REFERENCES:
patent: 5133171 (1992-07-01), Chase et al.
patent: 5515970 (1996-05-01), Ritchie et al.
patent: 5526930 (1996-06-01), Spina
patent: 5655659 (1997-08-01), Kennedy
patent: 5941387 (1999-08-01), Rasel
patent: 5944186 (1999-08-01), Sakai et al.

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