Resin cap

Details Resin cap Resin cap

1996-02-26

1998-06-09

Cronin, Stephen

Bottles and jars

Closures

Frangible member or portion

215274, 215305, 215320, B65D 4148

Patent

active

057622175

ABSTRACT:
The resin cap of this invention comprises a cap proper provided with a skirt portion and a continuous ring member provided so as to cover the outer surface of the skirt portion of the cap proper. A plurality of axially extending cuts are circumferentially spaced in the skirt portion of the cap proper, and the skirt portion of the cap proper and the ring-like member are separated via a cutting surface, but are integrally formed via a plurality of frangible bridge portions or connecting portions upwardly or downwardly of the cutting surface. The outer surface of the skirt portion of the cap proper and the inner surface of the ring-like member are intimately adhered at a portion of the cutting surface. This cap can form a sealing structure having sealing reliability, and can be opened without using any particular tool. Furthermore, it has excellent tamper-evident characteristics.

REFERENCES:
patent: 3462035 (1969-08-01), Grussen
patent: 3589543 (1971-06-01), Weigand
patent: 3858742 (1975-01-01), Grussen
patent: 3986627 (1976-10-01), Zapp
patent: 3990598 (1976-11-01), Zapp et al.
patent: 4216872 (1980-08-01), Bean
patent: 4230229 (1980-10-01), Crisci
patent: 4279353 (1981-07-01), Honma
patent: 4534481 (1985-08-01), Summers et al.

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