Tear-off closure with entrapped pull-ring

Details Tear-off closure with entrapped pull-ring Tear-off closure with entrapped pull-ring

1977-03-03

1978-02-28

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

215305, B65D 4142

Patent

active

040761410

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: 2080983 (1937-05-01), Merolle
patent: 3195756 (1965-07-01), Luviano
patent: 3865268 (1975-02-01), Coop

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