Pumping mechanism for dispensing lotion in bottle/container

作者: Frauk Kuo

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摘要: A pumping mechanism for a bottled lotion is constructed so that prevented from flowing out of the bottle if inadvertently not placed upright. The includes hollow cylindrical member, piston operating rod, cap, pressing ball, an upper valve, and compression spring arranged in manner when rod pressed downward, it will disengage valve member before bottom end thereof matches against member.

参考文章(5)
Michael G. Knickerbocker, Pump assembly with improved seal ,(1981)
William G Gorman, Non-metallic pump dispenser ,(1964)
S Araki, H Hoshi, S Miyamoto, R Susuki, Pump for spraying ,(1972)
Toretta Roberto, Albini Giovanni, Ruscitti Tomaso, Incerti Baldi Andrea, Handpump for dispensing fluids ,(1984)