Bottles and jars – Closures – Retained by bonding or adhesive means
Patent
1984-09-20
1987-06-30
Norton, Donald F.
Bottles and jars
Closures
Retained by bonding or adhesive means
215 31, 215256, B65D 4148
Patent
active
046763899
ABSTRACT:
A tamper-resistant plastic cap and container neck are disclosed, the cap having a skirt with upper and lower internal beads separated by a circumferential first score line connected to a second score line extending to the lower edge of the skirt. The neck has external beads matching the skirt beads to hold the cap on the neck. By pulling upward on a tab depending from said lower edge adjacent said second score line, the lower part of the skirt may be torn away along the second and then the first score line. This leaves a reclosure cap held on the neck by the upper bead means. A thin flange projecting from the periphery of the cap is used to remove the cap in its reclosure mode. However, this flange is shaped with its underside slanting down-inward to merge with the exterior of the skirt. If one attempts to use the flange to pry off the cap in its original sealing mode, sufficient force cannot be applied. Various cap bead shapes are disclosed. The beads may be continuous or interrupted and closer together and thinner than in prior caps. The skirt and neck below and lower bead are elongated and fit tightly together throughout substantially their entire length to frictionally engage to prevent removal of the cap in sealing mode. In one form of the invention the neck may be sealed with commerically available foil; the cap is dimensioned so the foil is inserted in the cap prior to being applied to the neck.
REFERENCES:
patent: 3338446 (1967-08-01), Faulstich
patent: 3499567 (1970-03-01), Spotts
patent: 3861549 (1975-01-01), Watson et al.
patent: 4037746 (1977-07-01), Ver Hage
patent: 4162736 (1979-07-01), Faulstich
patent: 4166552 (1979-09-01), Faulstich
patent: 4437593 (1984-03-01), Bullock
patent: 4438857 (1984-03-01), Bullock
patent: 4484687 (1984-11-01), Bullock
Bankers Trust Company
Caplan Julian
Norton Donald F.
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