Dispensing – Resilient wall – Supply container delivering to receiving chamber
Patent
1996-12-18
1999-02-16
Bomberg, Kenneth
Dispensing
Resilient wall
Supply container delivering to receiving chamber
222380, 2223833, B67D 542
Patent
active
058711260
ABSTRACT:
A pump dispenser is described for dispensing a product through a pumping mechanism that draws product from a storage container upwards through a dip tube, across a check valve, into a collecting chamber from which it is dispensed through a one-way monitoring valve and exits a nozzle. Flow is initiated by compression of a domed elastomeric wall covering the collecting chamber. A vent system of conduits including a conical ring valve brings air into the container to equalize pressure upon release of compression against the elastomeric wall. The one-way monitoring valve, downstream from the collecting chamber, may be formed as a duckbill valve of elastomeric rubber having an exit slit at the dispensing end. This slit, normally closed, will open upon pressure from a product flow. Excellent control of dispensing amounts is achieved through the pumping mechanism.
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Bengston John
Bennett Robert
Iaia Mark John
Turbett James Lynn
Bomberg Kenneth
Chesebrough-Pond's USA Co. Division of Conopco, Inc.
Honig Milton L.
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