Dispensing – Movable material discharge guide – Foldable – bendable – collapsible or flexible
Patent
1993-06-14
1995-02-28
Kashnikow, Andres
Dispensing
Movable material discharge guide
Foldable, bendable, collapsible or flexible
222528, 222530, 222536, 222534, B65D 4706
Patent
active
053929683
ABSTRACT:
A resealable plastic closure formed of one piece of plastic material includes a swivelable diaphragm to allow a hinged spout to pivot between an upright dispensing position and a down closed position. To permit easier operation in closures containing diaphragms in small sizes, the diaphragm is divided by a crease, hinging the two section, and one diaphragm section is invertible and the other diaphragm section is pliable, deformable. Improved side latches for the spout are provided by flexible latch member supporting wall that may flex into an adjacent cavity on the underside of the closure base. The fabrication of those side latches is enhanced in a process that withdraws one tool to create a void behind the latch member supporting walls so that the other tool, which forms the latch member, may be withdrawn without damaging the member by forcing the walls to flex laterally as the second tool is withdrawn. In one such resealable closure that is particularly adapted for drinking cup application a novel spout seal of cylindrical tubular section provides the sealing function by collapsing the cylindrical wall in response to the spout being placed in the closed position.
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Bomberg Kenneth
Goldman Ronald M.
Kashnikow Andres
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