Dispenser closure

Details Dispenser closure Dispenser closure

1975-10-31

1976-08-03

Knowles, Allen N.

Dispensing

Movable outlet element actuator projecting through discharge...

222505, 222511, 251175, 251280, B65D 2736

Patent

active

039724522

ABSTRACT:
The invention relates to a dispenser closure formed of elastomeric material which is suitable for fitting to the discharge spout of a liquid container formed of a flexible film material such as polyethylene film and housed in a cardboard casing. The closure is provided with sealing means, the effectiveness of which is increased with increasing pressure within the container, and a diaphragm like transverse wall positioned across the discharge spout, said transverse wall being provided with an outwardly directed protrusion which is manipulated with a toggle like action to distort the transverse wall and sealing means to permit liquid to flow from the container.

REFERENCES:
patent: 2075249 (1937-03-01), Wilson
patent: 2714475 (1955-08-01), Roehrich
patent: 3400866 (1968-09-01), Fattori

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