Patent ID: 6162020
Filing Date: 2000-12-19
Classification: C02F,F04F,Y02W

Abstract:
A liquid collection and transfer system comprising:a) a vessel for receiving and storing a quantity of liquid;b) a liquid supply connected to supply said liquid to said vessel;c) an airlift pump apparatus mounted in said vessel and operative in response to a supply of pressurized air from an air source connected thereto to store and intermittently release pressurized air and utilize the released pressurized air to intermittently airlift quantities of said liquid from said vessel; andd) said airlift pump apparatus is characterized by having:i) first means for storing air obtained from said air source;ii) second means associated with said first means for intermittently releasing said stored air; andiii) a vertical riser tube having an intake port submerged in said reservoir of liquid and an output port located outside the liquid in said reservoir and being connected for receiving said stored air intermittently release d by said second means and airlifting the liquid through said tube for discharge.