Seals for capped roll-on dispenser with hinged flip-top closure

Details Seals for capped roll-on dispenser with hinged flip-top closure Seals for capped roll-on dispenser with hinged flip-top closure

1997-10-31

1998-12-01

Walczak, David J.

Coating implements with material supply

Including ball, roller or endless-belt tool

Ball

215237, 401214, B43K 2308

Patent

active

058428062

ABSTRACT:
A roller-type storage container, dispenser and applicator includes a ball centered in a ball-retaining socket in a cap threadedly surmounting a container body. The cap is joined through an integral live hinge to a lid which is formed with an interior annular ring. Upon closure of the pivotally-hinged lid, the interior annular ring engages and bears inwardly against an outer upper wall section of the ball-retaining socket of the cap and urges the wall of the ball-retaining socket into positive, fluid-sealing engagement against the ball surface. Simultaneously, a vertically-directed force vector, generated during closure forces impressed by the lid upon the cap, bears upon the ball-retaining socket and forces the ball downwardly to seal against an annular, radially-inwardly-presented sealing ring integrally formed at a base of the ball-retaining socket, to seal the contents of the container therewithin.

REFERENCES:
patent: 3103691 (1963-09-01), Stull
patent: 4221494 (1980-09-01), Kachur

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