F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 35/00 (2006.01) B09C 1/00 (2006.01) E21B 43/12 (2006.01) E21B 43/38 (2006.01) F04B 41/06 (2006.01) F04B 47/08 (2006.01) F04B 49/10 (2006.01)
Patent
CA 2131708
2131708 9318302 PCTABS00025 Pumping apparatus (10) for recovering a first liquid, such as a pollutant (15), floating on a second liquid, such as ground water (14). A pump (24) immersed in the second liquid, or ground water, operates to produce a cone of depression and discharge the second liquid into a pressure vessel (27). A variable volume chamber (30) inside the pressure vessel (27) contracts and displaces any contents through an outlet conduit (44) to a product discharge point (17). When the pump (24) turns off, the variable volume chamber (30) expands and draws product into the chamber (30) to be driven from the chamber during successive pumping operations. Over time periodic pumping operations cause the variable volume chamber (30) to recover the first liquid (15) and move it to a discharge point (17).
Advanced Remediation Technologies
Smart & Biggar
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