Dispenser having attached and sealed closure cap

Details Dispenser having attached and sealed closure cap Dispenser having attached and sealed closure cap

1980-07-01

1982-11-30

Spar, Robert J.

Dispensing

With discharge assistant

With material supply container and discharge assistant with...

222568, 239333, B67D 540

Patent

active

043612563

ABSTRACT:
A dispenser includes a cylindrical connecting portion, an internally threaded closure cap permanently attached to the connecting portion, and a container for fluid to be dispensed having an externally threaded neck in engagement with the cap. The connecting portion and the cap are interengaged for both effecting the permanent attachment and for producing a fluid-tight seal therebetween. An annular flexible lip on the cap slopes inwardly of the cap and toward the container into engagement with an annular flange provided on the connecting portion. The lip overlies the container neck and is forced into a tight sealing engagement with the connecting portion upon a tightening of the cap onto the container neck. The flange may likewise overlie the container neck so as to be forced into a tight sealing engagement therewith upon the tightening of the cap onto the container neck.

REFERENCES:
patent: 3134522 (1965-05-01), Shwisha
patent: 3797749 (1974-05-01), Tada
patent: 4168788 (1979-09-01), Quinn

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