B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
B05B 7/24 (2006.01) B67D 99/00 (2010.01) A47K 5/12 (2006.01) A47K 5/14 (2006.01) B05B 7/30 (2006.01) B05B 7/32 (2006.01) B05B 11/00 (2006.01)
Patent
CA 2667103
A foam pump for pumping a foamable liquid from a foamable liquid source includes a premix chamber having an interior volume receiving the foamable liquid from the foamable liquid source. The foam pump also include a premix chamber air inlet valve, and a collapsible air chamber surrounds the premix chamber and fluidly communicates with the interior volume of the premix chamber through said premix chamber air inlet valve. The collapsible air chamber has an expanded volume and a compressed volume, and, when the collapsible air chamber is moved from its expanded volume to its compressed volume, air within the collapsible air chamber is forced into the premix chamber through the premix chamber air inlet valve and mixes with the foamable liquid received in the premix chamber. An outlet communicates with the premix chamber and, upon compression of the collapsible air chamber from its expanded volume to its compressed volume, foamable liquid and air are advanced from the premix chamber into the outlet. This foamable liquid and air mixture is homogenized into a foam product by advancement through a mesh screen.
Ciavarella Nick E.
Willis Daniel M.
Gojo Industries Inc.
Sim & Mcburney
LandOfFree
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