Opening device

Details Opening device Opening device

2006-11-21

2006-11-21

Newhouse, Nathan J. (Department: 3727)

Receptacles

Closures

Superposed closures for common opening

C220S276000, C222S541900

Reexamination Certificate

active

07137523

ABSTRACT:
An opening device comprising a removable membrane (11) connected to a pulling device (12). The pulling device (12) is connected to the membrane (11) at its opposed ends (13, 14) so as to define a pull ring. Weakening arrangements (15, 16) are provided at said opposed ends to initiate the tearing off of the membrane.

REFERENCES:
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patent: 3567061 (1971-03-01), Song
patent: 3661306 (1972-05-01), Kuckens
patent: 3834597 (1974-09-01), Guala
patent: 4687116 (1987-08-01), Dutt et al.
patent: 4702387 (1987-10-01), Wombold
patent: 4913306 (1990-04-01), Piltz
patent: 4934585 (1990-06-01), Reil
patent: 4961511 (1990-10-01), Piltz
patent: 6142334 (2000-11-01), Kristensson
patent: 6464096 (2002-10-01), Adams et al.

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