Automatic closure nozzle for collapsible containers

Details Automatic closure nozzle for collapsible containers Automatic closure nozzle for collapsible containers

1984-08-22

1986-04-08

Tollberg, Stanley H.

Dispensing

Collapsible wall-type container

222494, B65D 3546

Patent

active

045807019

ABSTRACT:
An automatic closure nozzle for a collapsible container is disclosed herein which opens to discharge the contents of the container when squeezed and which closes to seal the contents upon cessation of squeeze pressure. The inventive concept is particularly useful in connection with containers holding toothpaste, cosmetics, food products and a variety of liquid and semi-liquid products. The inventive concept includes a self sealing nozzle for a squeeze-type container composed of a pliable material which includes a flexible cap portion terminating at one end so as to define a discharge opening therein. The cap portion hingably mounts an inner and an outer seals, both of which have a plurality of stiff, triangularly shaped sections and coaxially disposed in spaced apart relationship. Each section in the respective inner and outer seals overlap to form a sealed closure in a first position and fully open in a second position to permit discharge of container contents through the discharge opening. An extension spring is attached between the container at one end and the cap portion on the other whereby expansion of the sidewall under squeeze pressure actuates the seals to their second position and release of pressure contracts the spring to return the seals to their first position.

REFERENCES:
patent: 1989145 (1935-01-01), Newby
patent: 2730274 (1956-01-01), Brown

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