Molded safety closure device and method for making same

Details Molded safety closure device and method for making same Molded safety closure device and method for making same

1984-07-10

1986-03-04

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

215306, 215320, B65D 4148

Patent

active

045736022

ABSTRACT:
A molded safety closure device and a method for making same are described. A cylindrical closure element adapted to close the mouth of a bottle or the like by frictional engagement with the interior facing surface of the mouth is supported on the bottle by a cylindrical retainer collar extending substantially coaxial with the closure element. The retainer collar is connected to the closure element by intercoupling means comprising a tabbed tear strip and a tether strip. The tear strip and the tether strip are integrally formed in a helical configuration extending one or more turns from the closure element to the collar. The tether strip and tear strip are joined by a pair of frangible webs of a preselected thickness which permit the tear strip to be manually removed. The collar and intercoupling section are molded as a unitary structure. The closure element is molded as a separate unitary structure and is secured mechanically to the intercoupling means by snap-fit about the periphery of one end of the closure element.

REFERENCES:
patent: 773345 (1904-10-01), Scheidt
patent: 1265263 (1918-05-01), Sharpe
patent: 3235117 (1966-02-01), Mason, Jr.
patent: 3599821 (1971-08-01), Eggert et al.
patent: 3904062 (1975-09-01), Grussen
patent: 3946891 (1976-03-01), Picoy et al.
patent: 3994409 (1976-11-01), Nightengale
patent: 3995762 (1976-12-01), Pfefferkorn et al.
patent: 4429799 (1984-02-01), Zaltsman
patent: 4474302 (1984-10-01), Goldberg et al.

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