Title: Pump dispenser

Abstract: A dispenser apparatus for receipt on a receptacle and operable to dispense a volume of liquid from a reservoir through an orifice includes means for injecting air into the liquid being dispensed to increase the level of atomization. The means includes a secondary chamber which normally is open to atmosphere yet adapted to be pressurized upon actuation of the pumping mechanism of the dispenser. The secondary chamber interior communicates through an opening with the liquid flow path to the orifice. The secondary chamber provides a secondary pump isolated from, but synchronized with the primary pumping mechanism.

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Inventors: Umstead, Herbert R. (Warwick, NY, US)

Application Number: 872544
Filing Date: 1978-01-26
Publication_date: 1979-12-18
Assignee: Avon Products, Inc. (New York, NY)
Primary Class(es): 222/631 222/321.9, 222/380
Other Classes:
US Patent Ref:

3239151	Mar, 1966	Boris	239/333.
4051983	Oct, 1977	Anderson	239/333.
4057176	Nov, 1977	Horvath	222/321.

Other Refs:
Primary Examiner: Spar, Robert J.
Assistant Examiner: Handren, Frederick R.
Attorney: Pennie & Edmonds