PUMP DISPENSER

WIPO Patent Application WO/2024/086961

A1

Described herein, a pump dispenser comprising: a bottle comprising a neck having a neck landing zone; a pump assembly comprising: an actuator having a cavity therein; a closure connected to the actuator and coupled to the neck of the bottle; a dip tube; and a dual chamber pump. The dual chamber pump comprises a piston assembly; a housing including a pump chamber, a storage chamber and a core; and a sealing cap. The piston assembly is interior to the pump chamber and slidably engaged with the pump chamber. The storage chamber cavity comprises a substance to be released in a formulation contained in the bottle. The core comprises a connecting stem. The sealing cap is rigidly connected to the core and closes the storage chamber such that the substance to be released remains stored in the storage chamber cavity. When the actuator is pushed down for a first time by a user, the piston assembly moves to push down the connecting stem, which pushes down the sealing cap to open the storage chamber for releasing the substance contained in the storage chamber in the bottle.

HONG YILIN (CN)
ZENG ZHIYUN (CN)

PCT/CN2022/126915

May 02, 2024

October 24, 2022

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PROCTER & GAMBLE (US)
HONG YILIN (CN)
ZENG ZHIYUN (CN)

B05B11/00; B05B11/10

WO2022132693A1

2022-06-23

KR20180060058A	2018-06-07
KR102116430B1	2020-05-28
US20160325297A1	2016-11-10
US20120132199A1	2012-05-31
US6126032A	2000-10-03
US5104646A	1992-04-14
US5106609A	1992-04-21
US4275055A	1981-06-23

SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)

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