Plastic cap and container construction

Details Plastic cap and container construction Plastic cap and container construction

1977-11-16

1979-07-31

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

215 31, 215320, 215321, B65D 4148

Patent

active

041627369

ABSTRACT:
A plastic container neck has an inside substantially vertical sealing surface, a top groove, a very smooth second sealing surface of less diameter than the first sealing surface, a lower groove and a vertical stretch. The outside of the neck has a vertical surface, a horizontal, inwardly-extending shoulder, an indented second vertical surface of lesser diameter than the first vertical surface and an external bead, and a third vertical surface. The container has a substantially uniform wall thickness. The second sealing surface has an "injection finish" obtained by use of a blow pin in the mold. The cap has lower internal beads interrupted in a plurality of gaps, permitting stretching of the cap to seat on the neck. Thickenings on the interior of the cap outer skirt paralleling the spiral groove of the skirt from the bottom edge of the skirt to the horizontal groove to facilitate tearing the skirt.

REFERENCES:
patent: 3019933 (1962-02-01), Gould
patent: 3338446 (1967-08-01), Faulstich
patent: 3707240 (1972-12-01), Wilson
patent: 3840137 (1974-10-01), Faulstich
patent: 3940004 (1976-02-01), Faulstich
patent: 3946891 (1976-03-01), Picoy
patent: 3991904 (1976-11-01), Davis

Affiliated with

Also associated with

Rating

Plastic cap and container construction does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Plastic cap and container construction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plastic cap and container construction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-20320