Liquid purification or separation – Structural installation – Closed circulating system
Patent
1995-04-07
1997-06-24
Popovics, Robert J.
Liquid purification or separation
Structural installation
Closed circulating system
2104162, 4496, 15 17, 417 65, 417 92, 417104, E04H 416
Patent
active
056413998
ABSTRACT:
A swimming pool cleaning system 2 is provided which provides both water suction and compressed air to a pool cleaning device. A pump 20 draws water form a swimming pool P through the pool cleaning device, an attached vacuum hose 14 and a suction line 12. An air inlet port 10 enters the suction line 12 adjacent the pump 20. The pump 20 then compresses the air A and pumps the water to a higher pressure simultaneously. The pump 20 is followed by a main pool filter 40 in which the water is filtered and returned to the pool P and the compressed air A is separated. A compressed air outlet 50 draws the compressed air A out of the main pool filter 40 and delivers the compressed air A to the pool cleaning device along a compressed air supply line 58. The air inlet port 10 includes a hollow inner tube segment 60 partially surrounded by a resilient outer sleeve 70. A hole 66 in the inner tube segment 60 and beneath the outer sleeve 70 delivers air A into the suction line 12 only when pressure within the suction line 12 is sufficiently low to pull the outer sleeve 70 away from the inner tube segment 60. The air inlet port 10 is oriented directly adjacent the pump 20 so that a minute steady stream of air A is supplied to the pump 20 without overloading the pump 20 or causing the pump 20 to cavitate.
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Heisler Bradley P.
Popovics Robert J.
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