Dispenser with improved supply-closing means

Details Dispenser with improved supply-closing means Dispenser with improved supply-closing means

2006-04-19

2011-12-20

Shaver, Kevin P (Department: 3754)

Dispensing

With lock or fastening seal

Inhibiting actuation of discharge assistant

C222S190000, C222S321900, C222S135000

Reexamination Certificate

active

08079497

ABSTRACT:
The invention relates to a dispensing unit, particularly suitable for a liquid container, comprising an air pump with an air cylinder and an air piston (31), wherein an air chamber (32) is defined between the air cylinder and the air piston, a liquid pump with a liquid cylinder and a liquid piston (24), wherein a liquid chamber (30) is defined between the liquid cylinder and the liquid piston. An axially displaceable activating element (36) for activating the pumps, and upper edge (50) of air piston (31) for closing air supply to the air pump, and an oblique wall (51) of activating element (36) for closing air discharge from the air pump. The air piston and the liquid piston are movable in axial direction relative to the activating element in order to close air supply to the air pump and close air discharge from the air pump.

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patent: W02006/112704 (2006-10-01), None
International Search Report and Written Opinion for International Application No. PCT/NL2006/000204 (WO 2006/112701) mailed Jul. 28, 2006 (6 pages).

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