Envelopes – wrappers – and paperboard boxes – Wrapper – Bottle
Patent
1975-06-02
1976-06-29
Moorhead, Davis T.
Envelopes, wrappers, and paperboard boxes
Wrapper
Bottle
220258, 220280, B65D 1720, B65D 554
Patent
active
039661148
ABSTRACT:
A rupturable seal for a container of the type having an insertable lid wherein the seal constitutes a membrane having a cylindrical portion extending into the open end of the container to beyond the insertion depth of the lid, the upper edge of the cylindrical portion being adhered to the inner surface of the container, the seal having a transverse portion extending across the interior of the container to close it. A tear strip surrounds the cylindrical portion between it and the inner surface of the container and protrudes through an opening in the cylindrical portion to form a holding flap which can be pulled, after the lid is removed, to rupture the membrane which is then removed. An upper portion of the membrane wraps over the open edge of the box to form a protective covering therefor which remains. In an alternative embodiment the tear strip extends around the inner surface of the cylindrical portion and is adhered thereto. The opening through which the holding flap extends can be sealed by adhering overlying ends of the tear strip, or by a sealing patch or foil cover. The membrane can be deep drawn aluminum or a plastic material.
REFERENCES:
patent: 563936 (1896-07-01), Merriam
patent: 1884613 (1932-10-01), Dister
patent: 2111566 (1938-03-01), Link
patent: 2330878 (1943-10-01), Foley
patent: 3537610 (1970-11-01), Biloh
patent: 3542236 (1970-11-01), Dru
Max Sandherr AG
Moorhead Davis T.
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