Dispensing container for liquid products

Details Dispensing container for liquid products Dispensing container for liquid products

1990-02-20

1992-11-24

Huppert, Michael S.

Dispensing

With cutter and/or punch

To form dispensing opening in container

222630, 222327, 222389, 206204, B67D 500

Patent

active

051655721

ABSTRACT:
A container for liquids is disclosed which comprises a cylinder which is initially open at both ends. One end of the cylinder is closed by a valve unit and the other end of the cylinder is closed by an end cap. The end cap has a line of weakening therein so that the package can be opened by tearing away part of the end cap. A piston is provided within the cylinder, there being between the valve unit and the piston a compartment of receiving the liquid to be dispensed. The valve unit includes a valve closure element which is spring loaded against a seat. When a force is supplied to the rear face of the piston to pressurize the liquid product in the compartment, the liquid acts on the valve closure element to urge it against its seat. Liquid can only be dispensed when an operating member, inserted into the valve unit from externally of the container, unseats the valve closure element.

REFERENCES:
patent: 3809280 (1974-05-01), Park et al.
patent: 3926349 (1975-12-01), Schultz
patent: 3964641 (1976-06-01), Langensiepen et al.
patent: 4193513 (1980-03-01), Bull, Jr.
patent: 4212373 (1980-07-01), Scragg
patent: 4217994 (1980-08-01), Koenig et al.
patent: 4615468 (1986-10-01), Gay
patent: 4859121 (1989-08-01), Deysson et al.
patent: 4972945 (1990-11-01), Insley et al.

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