Receptacles – Closures – With closure opening arrangements for means
Patent
1982-03-02
1983-08-09
Hall, George T.
Receptacles
Closures
With closure opening arrangements for means
220359, 156 69, 53477, B65D 1750, B65D 4102
Patent
active
043974015
ABSTRACT:
Disclosed is an easily openable vessel closure comprising a can end member having a preformed opening, an easily peelable opening piece which is applied to the outer side of the can end member so that the opening piece covers said opening and adheres closely to the peripheral portion of said opening, and a protecting covering layer formed to cover the cut edge of the opening of the can end member, wherein the protecting covering layer is formed of a thermoplastic resin having a heat bondability and the protecting covering layer includes a film layer heat-bonded to the inner and outer peripheral portions of the opening and a projecting cover heat-bonded to the cut edge of the opening integrally with said film layer, and said opening piece is heat-bonded to the can end member through the protecting covering layer located outside the can end member and said protecting covering layer is stuck closely to the cut edge of the opening so that when the opening piece is peeled, the protecting covering layer is left on the side of the can end member.
This vessel closure is excellent in the seal reliability, corrosion resistance, flavor-retaining property and easy openability.
REFERENCES:
patent: 3731835 (1973-05-01), Hawkins et al.
patent: 3990603 (1976-11-01), Brochman
patent: 4108330 (1978-08-01), Patterson
patent: 4135637 (1979-01-01), Hannula
patent: 4170314 (1979-10-01), Weierman et al.
Aizawa Masanori
Ishibashi Kazuhisa
Kaga Yasuo
Miyamatsu Yasunori
Ueno Hiroshi
Hall George T.
Toyo Seikan Kaisha Ltd.
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