Tear-off closure and method of forming the same

Details Tear-off closure and method of forming the same Tear-off closure and method of forming the same

1976-02-25

1977-07-26

Keenan, Michael J.

113 15A, B21D 5144

Patent

active

040375510

ABSTRACT:
An improved tear-off closure for a container is disclosed having a circular top end wall, a closure skirt depending from the top end wall, an annular rim projecting radially outwardly from the bottom of the closure skirt and an integral concentric pull ring around the annular rim. The pull ring comprises a curled bead having a radially inwardly open slot therein into which a terminal edge portion of the annular rim projects to secure the pull ring in a fixed position of the base of the closure skirt prior to sealing of the closure on a container. A method and tools for forming such a closure are also disclosed.

REFERENCES:
patent: 2119662 (1938-06-01), Williams
patent: 3865268 (1975-02-01), Coop
patent: 3931904 (1976-01-01), Coop
patent: 3976215 (1976-08-01), Smalley

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