Plastic cap assembly having a central sealing pin

Details Plastic cap assembly having a central sealing pin Plastic cap assembly having a central sealing pin

1988-06-14

1990-10-23

Rolla, Joseph J.

Dispensing

With cutter and/or punch

To form dispensing opening in container

222153, 222520, 222549, B67D 500

Patent

active

049645374

ABSTRACT:
A plastic cap assembly has a base cap that can be installed on the neck of a container. Within the base cap there is a pour spout that serves as a sealing pin, can be moved axially upwards and downwards, and is closed off at the top. On the base cap there is a screw cap that can be turned. The screw cap has a central opening in which the pour spout that serves as the sealing pin engages when in the closed position. The pour spout has an outside thread that engages with an inside thread beneath the central opening in the screw cap. The advantges of this cap assembly lie in its good sealing characteristics and in the fact that, provided with a suitable penetrator, it can be used on containers sealed with a membrane or a foil.

REFERENCES:
patent: 2806640 (1957-09-01), Wroblewski
patent: 3010619 (1957-10-01), Gronemeyer
patent: 3263851 (1966-08-01), Grimsley
patent: 3578223 (1971-05-01), Armour
patent: 4065037 (1977-12-01), Haller
patent: 4383623 (1983-05-01), Page, III
patent: 4408700 (1983-10-01), Fillmore et al.
patent: 4527702 (1985-07-01), Heath, Jr.
patent: 4570825 (1986-02-01), Stull
patent: 4691836 (1987-09-01), Wassilieff

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