Closure having a pull tab and a controlled seal width at the pul

Details Closure having a pull tab and a controlled seal width at the pul Closure having a pull tab and a controlled seal width at the pul

1986-10-23

1987-09-15

Hall, George T.

Receptacles

Closures

Removable closure retained by adhesive or fusion means

220260, B65D 4100

Patent

active

046933913

ABSTRACT:
This disclosure relates to a closure having a plastic layer which is to be heat bonded to a plastic outer layer of a container. The closure is provided with a pull tab to facilitate the removal thereof from the container. Heat bonding of the closure to the container is effected by induction heating utilizing a metal foil barrier layer within the closure. By offsetting a portion of the closure in alignment with the pull tab, the bond between the closure and the container may be configurated so as to facilitate the initial peeling of the closure from the container when the pull tab is lifted.

REFERENCES:
patent: 4044941 (1977-08-01), Knudsen
patent: 4207989 (1980-06-01), Ingemann
patent: 4215797 (1980-08-01), Chen
patent: 4605142 (1986-08-01), Itoh et al.

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