Closure cap having structure for minimizing dripping

Details Closure cap having structure for minimizing dripping Closure cap having structure for minimizing dripping

1989-07-27

1990-12-25

Shaver, Kevin P.

Dispensing

Supply containers with traps

With trap chamber cutoffs

2224651, 222476, 222525, G01F 1128

Patent

active

049796534

ABSTRACT:
A closure cap for a fluid container has a mounting part mounted on the container neck with a closure element of a given diameter fixedly positioned on the center axis thereof, and a movable part covering the container opening and movable along the center axis relative to the mounting part. The movable part has walls defining an external orifice on the center axis and an internal orifice recessed a distance inwardly from the external orifice. In one embodiment, the closure element is pulled to the closed position, and pushed to the opened position, and has a shape defining a labyrinth that creates a suction force which prevents fluid from leaking from the container when the container is righted.

REFERENCES:
patent: 2307223 (1943-01-01), Kerr
patent: 2820579 (1958-01-01), Roth
patent: 2834520 (1958-05-01), Nyden
patent: 2936935 (1960-05-01), Rabb
patent: 2950032 (1960-08-01), Willis et al.
patent: 3081921 (1963-03-01), Di Pierro et al.
patent: 3244332 (1966-04-01), Rogers
patent: 4020981 (1977-05-01), Nixdorff
patent: 4679714 (1987-07-01), Blake

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