Closure for container

Details Closure for container Closure for container

1981-03-11

1983-01-25

Norton, Donald F.

Bottles and jars

Closures

Closure pivoted about receptacle opening

220307, B65D 3904

Patent

active

043698883

ABSTRACT:
A closure for a container having a neck with a bore which is provided with an annular locking shoulder having at diametrically opposite sides of the bore different shaped entry contours for guiding an annular locking shoulder on a plug, one of these shapes permitting easy entry of one side of the plug into the bore to tilt the plug and catch a portion of the plug shoulder at that one side beneath the neck shoulder to thus provide a fulcrum for the plug whereby upon applying force by pressing against the top of the plug at a point diametrically opposite to the fulcrum, the span of the plug between the fulcrum and the point functions as a lever which easily tilts the plug to upright position and forces the shoulders to slightly deform and the plug shoulder to snap under the neck shoulder.

REFERENCES:
patent: 3021976 (1962-02-01), Tracy
patent: 3080088 (1963-03-01), Corrinet
patent: 3469732 (1969-09-01), Foster

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