Dispensing – With lock or fastening seal – Single-use fastening seal
Patent
1999-01-11
2000-03-21
Huson, Gregory L.
Dispensing
With lock or fastening seal
Single-use fastening seal
215252, 215253, 222521, B67D 537
Patent
active
060392185
ABSTRACT:
A tamper-evident closure construction for a container with a neck having a discharge opening therein includes a base cap having a base wall and a nozzle portion projecting from the base wall and an annular flange projecting radially outwardly from the nozzle portion adjacent to the base wall and having a frustoconical first cam surface thereon and a flat planar first stop surface thereon. The construction also includes an overcap with a cylindrical, flexible and resilient skirt connected to the base wall by a circular array of frangible webs, and having a flat planar second stop surface at the distal end thereof and an annular groove mateably receiving the annular flange and defining a frustoconical second cam surface engaging the first cam surface. When the overcap is moved from the initial position along the nozzle portion and away from the base wall the frangible webs are broken, the cam surfaces flexing the overcap skirt until it clears the annular flange, whereupon it returns to an unflexed condition wherein the stop surfaces are engageable with each other to prevent return of the overcap to its initial position.
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Huson Gregory L.
Innovative Plastic Technology, Inc.
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