Self-sealing dispensing valve and spout assembly

Details Self-sealing dispensing valve and spout assembly Self-sealing dispensing valve and spout assembly

1982-05-27

1984-04-24

Tollberg, Stanley H.

Dispensing

Snap-acting outlet element

222517, B65D 4708

Patent

active

044443404

ABSTRACT:
A removeable and replaceable self-sealing valve formed of resiliently flexible plastic which has inner and outer concentric walls spaced to provide an axially inwardly-opening socket for receiving the outer end of a semi-rigid plastic spout carried by a flexible plastic bag. The spout has one or more inner anular sealing ribs formed therein at a location spaced axially-inwardly from its lip and the inner wall normally resiliently engages this seal. A toggle lever is connected to the inner wall to flex it so that a portion thereof is flexed away from the sealing rib to open a dispensing passage to an outlet in the outer wall beyond the spout lip. A removable seal retainer insert holds the inner wall in sealed position until the valve is to be used.

REFERENCES:
patent: 3400866 (1968-09-01), Fattori
patent: 3443728 (1969-05-01), Scholle
patent: 3972452 (1976-08-01), Welsh
patent: 4211348 (1980-07-01), Scholle

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