Linerless cap closure

Details Linerless cap closure Linerless cap closure

1988-04-26

1989-11-07

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

215344, 215DIG1, B65D 4134, B65D 5300

Patent

active

048785890

ABSTRACT:
A linerless cap closure includes a circular top wall and a depending annular skirt having an internal thread with a tamper-evident band below the skirt. A sealing member is integral with the lower surface of the top wall and includes an annular protrusion having a depending annular axial projection. The tamper-evident band is connected to the skirt with a plurality of spaced tear tangs and a permanent connection and the band has an inwardly-directed bead with inclined ramps extending from the inner edge of the bead to the lower edge of the bead.

REFERENCES:
patent: 2952374 (1960-09-01), Pryale
patent: 4429802 (1984-02-01), Marks
patent: 4489845 (1984-12-01), Aichinger et al.
patent: 4526282 (1985-07-01), Dutt et al.
patent: 4530436 (1985-07-01), Wiedmer
patent: 4564112 (1986-01-01), Brever
patent: 4598835 (1986-07-01), Brownbill
patent: 4664279 (1987-05-01), Obrist et al.
patent: 4667838 (1987-05-01), Yeager

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