Cap for fluid container with threaded neck

Details Cap for fluid container with threaded neck Cap for fluid container with threaded neck

1995-01-04

1996-05-07

Shoap, Allan N.

Bottles and jars

Closures

Frangible member or portion

215 44, 215317, 215321, 215330, 215331, 215348, 215349, 215352, 141 18, 141319, 141354, 141375, B65D 4134

Patent

active

055137636

ABSTRACT:
The present invention employs a plastic snap-on cap which engages both the neck crown of a container having a rectangular body and a neck having screw threads and is internally threaded to engage the neck threads of the conventional container. A foam gasket under the top of the cap prevents leakage by sealing against the neck lip. The cap has internal threads which snap over and then engage under the neck threads. Vertical "barriers" below the cap threads prevent unscrewing the cap so long as the cap skirt is intact. Score lines extend from the bottom edge of the cap skirt to above the internal cap bead which engages the neck crown and extend up to the cap threads. A tear tab is used to tear a vertical strip of the skirt which extends up between the score lines. The cap is thus tamper-evident since it cannot be removed so long as the cap is intact but can be removed by tearing the aforementioned strip. In one modification, a well is formed in the center of the cap. The open bottom of the well is closed by a plug which engages the upper end of a water-cooler dispenser tube and is pushed into the container when in use and returned to closed position when the container is removed from the dispenser.

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