Invention Grant
- Patent Title: Lotion pump and one-way valve incorporated therein
- Patent Title (中): 乳液泵和单向阀并入其中
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Application No.: US12526439Application Date: 2007-02-17
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Publication No.: US08231031B2Publication Date: 2012-07-31
- Inventor: Yaowu Ding
- Applicant: Yaowu Ding
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- International Application: PCT/CN2007/000593 WO 20070217
- International Announcement: WO2008/101368 WO 20080828
- Main IPC: B65D88/54
- IPC: B65D88/54
Abstract:
A lotion pump may include an upper one-way valve. The one-way valve may include an elastic tube and a valve seat. The valve seat is disposed on the connecting/guiding member or the nozzle head and has a closed top end and at least one opening provided on a side surface, and the elastic tube elastically covers the side surface of the valve seat. The one way valve may include an open state and a closed state. In the open state, the elastic tube expands to open the opening; and in the closed state, the elastic tube closes the opening. The lotion pump may be connected to a liquid container that is fixed to a fixture.
Public/Granted literature
- US20100006604A1 LOTION PUMP AND ONE-WAY VALVE INCORPORATED THEREIN Public/Granted day:2010-01-14
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