Bottles and jars – Closures – Frangible member or portion
Patent
1981-06-09
1983-05-31
Norton, Donald F.
Bottles and jars
Closures
Frangible member or portion
215254, B65D 4146
Patent
active
043857086
ABSTRACT:
A tamper proof lid which includes a crown having means for interlocking with a container neck finish. The crown has a depending skirt which incorporates a frangible portion and there is a handle which is secured to the frangible skirt portion generally as a continuation thereof and disposed radially outwardly of the adjacent part of the skirt. There is a rupturable webbing extending between the handle and the skirt which, when broken, indicates that the lid has been tampered with. The interlock between the crown and a container neck finish is sufficient to retain the crown in place under all conditions. The depending skirt initially provides for a hermetic seal. The lid is preferably formed of a relatively rigid material, such as polypropylene, which makes it virtually impossible to remove the crown from an associated container neck finish. The handle, once it initiates rupture of the skirt, is required to effect an upward prying and peeling of the crown from the associated container neck finish.
REFERENCES:
patent: 3247994 (1966-04-01), Fuglsang-Madsen
patent: 3415404 (1968-12-01), Robinson
patent: 3622028 (1971-11-01), Lohrer
patent: 3856171 (1974-12-01), Rossi
Brown Charles A.
Norton Donald F.
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