Dispensing – With resilient biasing means for outlet element
Patent
1987-11-16
1989-05-30
Shaver, Kevin P.
Dispensing
With resilient biasing means for outlet element
222562, B22D 3700
Patent
active
048342718
ABSTRACT:
There is provided, for a container having a cylindrical outlet (2), a one-piece deformable dispensing closure (10) in the form of a cap including an end wall (12) having a depending peripheral skirt (14) for securing it to outlet (2). End wall (12) includes scoreline (56) which defines a segment intersecting a portion of end wall (12). A complex seal (32), sized for insertion into container outlet (2), depends from the inner surface of end wall (12). The seal also includes tapered external lip (34) for forming a releasable seal with internal surface (6) of container outlet (2). There is a dispensing opening (22) through end wall (12). When inward pressure is exerted on end wall (12) a portion of end wall (12) within scoreline (56) is moved inwardly, moving with it a portion of tapered lip (34) thereby releasing the moved portion of tapered lip (34) from its sealing relation with internal surface (6) while the portion of the seal (32) and tapered lip (34) which are outside of scoreline (56) remain in sealing relation with outlet (2). When inward pressure on end wall (12) is terminated the inwardly moved portion of end wall (12) and seal (32) move outward and return the moved portion of tapered lip (34) to its normal sealing relation with outlet (2). A modified form of the closure (10) which is lockable and child resistant is also taught. A second modified form of the closure (10A) having a modified circumferential skirt (14A) is associated with a cap (74) which may be placed on neck (2A) of a container having a film seal (76) is also described.
REFERENCES:
patent: 2932436 (1960-04-01), Dobbins
patent: 3064865 (1962-11-01), Scoggin, Jr. et al.
patent: 3179306 (1965-04-01), Consette
patent: 4632282 (1986-12-01), Nagashima
patent: 4706855 (1987-11-01), Litwin
Margolis Donald W.
Noland Kenneth
Shaver Kevin P.
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