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US 2013/0200098 A1Published application
Foaming Liquid Dispenser
AssigneeReckitt Benckiser N.V.
InventorsMingDong Li, ZhiHao Liang, XianZhi Zhou
Life of this patent
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Abstract
Disclosed is a foaming pump mechanism for dispensing a foamable or foaming liquid composition, as well as dispensers for delivery of a foaming or foamable liquid composition therefrom, which is operable by a non-contact interaction with the user.
Claims17
A foaming pump mechanism for dispensing a foamable or foaming liquid composition which comprises:
- a liquid cylinder in fluid communication with a supply of a foaming or foamable liquid composition and in fluid communication with a dispensing nozzle, the liquid cylinder further including a bore and a liquid cylinder piston moveable with the bore;
- an air cylinder in fluid communication with the dispensing nozzle,
- the dispensing nozzle includes an a liquid inlet port, an air inlet port, further downstream thereof at least one screen and a delivery outlet,
- wherein the volumetric ratios of the volumes of the liquid cylinder and the air cylinder between the base and peak of the stroke cycles is between 1:0.1-25.
1 more element
Dependencies are inferred from the claim text.