71575852
Mar 22, 1949
Aug 28, 1951
DEEP WELL WATER PUMPING AND WATER SUPPLY SYSTEMS AND APPARATUS OF THE TYPE WHEREIN WATER IS PLACED UNDER PRESSURE BYA MAIN PUMPING MEANS SUCH AS A CENTRIFUGAL PUMP AND IS PIPED DOWN WARDLY ALONG A MAIN SUCTION PIPE AND IS DISCHARGED UPWARDLY WITHIN THE MAIN SUCTION PIPE THROUGH AN INJECTOR NOZZLE STRUCTURE TO INCREASE THE OPERATING EFFICIENCY OF THE SYSTEM, AND PARTS THEREOF
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