Dispensing – With flow controller or closure – Plural and/or carried by separably attached element
Patent
1987-01-12
1987-10-13
Rolla, Joseph J.
Dispensing
With flow controller or closure
Plural and/or carried by separably attached element
222556, 215235, B65D 4700
Patent
active
046993010
ABSTRACT:
A two-piece dispensing closure in which a relatively soft inner seal member is positioned beneath a rigid outer closure member. The inner seal member effects a seal between the outer member and the neck of the container, and enables the parts to be snapped together. Further, the closure may be snap fitted to the container, which may have either an injection blow molded neck finish or an extrusion blow molded neck finish. In one form of the invention, a pivoted plug is carried by the outer member for insertion in an opening formed in the inner member. In another form of the invention, the plug is fixed relative to the outer member and the inner member flexes relative thereto. In a still further form of the invention, the outer member has a valve seat and the flexible inner member carries a plug for cooperation with the seat.
The method of making a two-piece dispensing closure is also disclosed, in which a plug member is molded integrally with a closure member and then separated therefrom along frangible breakaway connections for subsequent assembly to the closure.
REFERENCES:
patent: 3772715 (1973-11-01), Nigro
patent: 3774756 (1973-11-01), Carlile et al.
patent: 4291818 (1981-09-01), Nozawa et al.
patent: 4399928 (1983-08-01), Klingler
patent: 4420101 (1983-12-01), O'Neill
patent: 4569464 (1986-02-01), Wassilieff
Huppert Michael S.
Lambert Dennis H.
Rolla Joseph J.
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