Coupling for breaking a seal film of a dispensing opening for a

Details Coupling for breaking a seal film of a dispensing opening for a Coupling for breaking a seal film of a dispensing opening for a

1992-12-24

1994-10-04

Shaver, Kevin P.

Dispensing

With cutter and/or punch

To form dispensing opening in container

222 82, 222 89, B67D 500

Patent

active

053518608

ABSTRACT:
A coupling comprises a plug attached to the opening of a fluid-filled container. The plug includes an inner cylinder having an opening sealed by film comparatively easily broken by a sharp tip or a blade, and an outer cylinder fitted onto the inner cylinder. A socket is connected to the plug, the socket including a connection to a fluid suction pump. A cutter section has a tip portion shaped like a triangular pyramid to gradually break the film at the opening of the inner plug cylinder when the socket is connected to the plug and also has a trunk portion continuous from the tip portion and shaped like a triangle pole. An inner cylinder is carried by the socket and has a valve synchronous with the sucking operation of said fluid suction pump to open and close a fluid passage in the inner cylinder. A sleeve having a collar rotatably fitted on the inner cylinder and cooperative with a stopper on the outer plug cylinder serves to detachably fix the inner socket cylinder in the plug.

REFERENCES:
patent: 2849156 (1958-08-01), Mansted
patent: 3779082 (1973-12-01), Galloway
patent: 4436125 (1984-03-01), Blenkush
patent: 4445550 (1984-05-01), Davis et al.
patent: 4614437 (1986-09-01), Buehler
patent: 4765511 (1988-08-01), Clements
patent: 4919174 (1990-04-01), Warland
patent: 4941517 (1990-07-01), Galloway
patent: 4948014 (1990-08-01), Rutter et al.
patent: 4969491 (1990-11-01), Kiplinger
patent: 5102010 (1992-04-01), Osgar et al.
patent: 5205440 (1993-04-01), Matsushita

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