专利名称：Dual air chamber foam pumps, refill units
and dispenrs
发明人：Donald R. Harris,John J. McNulty,Aaron D.
Marshall
申请号：US14721141延期交货说明函
申请日：20150526
中医保健养生公开号：US09642502B2酒泉旅游
公开日：
孔雀幼崽
蒙恩20170509
专利内容由知识产权出版社提供
无所畏惧专利附图：
摘要：Exemplary two chamber foam pumps, refill units and dispenrs utilizing the same are disclod herein. An exemplary refill unit includes an inverted container having a
neck located at the bottom of the container and a foam pump cured neck. The foam pump includes a first air pump chamber, a liquid pump chamber and a cond air pump chamber. In addition, the pump includes a piston. The piston has a hollow central portion.
A first air inlet aperture is located through a wall of the piston between the first air pump chamber and the hollow central portion. A liquid inlet aperture is located below the first air inlet aperture and between the liquid pump chamber and the hollow central portion.
A cond air inlet aperture is located through the wall the piston located below the liquid inlet aperture and between the cond air pump chamber and the hollow central portion.
申请人：GOJO Industries, Inc.
隐形眼镜材质地址：Akron OH US
国籍：US
代理机构：Calfee, Halter & Griswold LLP
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