Vacuum container with reclosable sealing closure having a vacuum

Details Vacuum container with reclosable sealing closure having a vacuum Vacuum container with reclosable sealing closure having a vacuum

1998-02-23

1999-11-09

Cronin, Stephen K.

Receptacles

Closures

With vacuum breaker or manually operable vent

220295, 220303, 220363, 220266, 215262, 215253, B65D 5116

Patent

active

059796880

ABSTRACT:
A vacuum pack food container is closed by releasable and reclosable sheet metal closure having a center portion defining an annular recess around an upwardly projecting integral vacuum release button with an undercut wall partially surrounded by a score line smaller than the button. The sealant material is confined within the button and has an outwardly projecting flange releasably bonded to the closure under the score line. Depressing the button peels the sealant flange from the closure to define a vacuum release passage which closes and seals when the pressure on the button is released. A peripheral skirt portion on the closure has inwardly projecting bosses which cooperate with cam surfaces on the bottom of a curled rim portion of a sheet metal container to provide a twist-on twist-off closure.

REFERENCES:
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patent: 5307947 (1994-05-01), Moen et al.

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