Pump bypass method and apparatus for pipeline transportation systems

Claim 1

APPARATUS FOR APPLYING PUMPING ACTION TO A MAIN FLUID STREAM CONTAINING SOLID BODIES BEING TRANSPORTED IN A PIPELINE WHICH COMPRISES A PIPE SECTION IN SAID PIPELINE COMPRISING A LOOP HAVING A VERTICALLY UPWARDLY EXTENDING FIRST PORTION AND A VERTICALLY DOWNWARDLY EXTENDING SECOND PORTION, SAID PIPE SECTION HAVING MEANS IN SAID FIRST PORTION FOR WITHDRAWING A BODY-FREE STREAM PORTION COMPRISING A PERFORATED LENGTH OF SAID PIPE SECTION, AND A CYLINDRICAL MANTLE ENCLOSING SAID PERFORATED LENGTH, A PUMP HAVING AN INTAKE COMMUNICATING WITH THE INTERIOR OF SAID MANTLE AND A DISCHARGE COMMUNICATING WITH SAID PIPE SECTION, SAID SECOND PORTION HAVING A FIRST SOLID BODY SENSING DEVICE, A FIRST VALVE THEREIN BELOW SAID FIRST SENSING DEVICE, A SECOND SOLID BODY SENSING DEVICE, AND A SECOND VALVE BELOW SAID SECOND SENSING DEVICE, SAID PUMP INTAKE HAVING A THIRD VALVE THEREIN, A SECOND PUMP INTAKE LEADING FROM SAID SECOND PORTION IMMEDIATELY ABOVE SAID FIRST VALVE, A FOURTH VALVE IN SAID SECOND INTAKE, SAID PUMP DISCHARGE HAVING A FIRST BRANCH LEADING TO SAID SECOND PORTION IMMEDIATELY BELOW SAID FIRST VALVE AND A SECOND VRANCH LEADING TO SAID SECOND PORTION BELOW SAID SECOND VALVE, A FIFTH VALVE IN SAID FIRST BRANCH, A SIXTH VALVE IN SAID SECOND BRANCH, SAAID SECOND, FOURTH AND FIFTH VALVES BEING NORMALLY OPEN AND SAID FIRST, THIRD AND SIXTH VALVES BEING NORMALLY CLOSED, MEANS RESPONSIVE TO ENERGIZATION OF SAID FIRST SENSING DEVICE FOR CLOSING SAID SECOND, FOURTH AND FIFTH VALVES AND OPENING SAID FIRST, THIRD AND SIXTH VALVES, AND MEANS RESPONSIVE TO ENERGIZATION OF SAID SECOND SENSING DEVICE FOR OPENING SAID SECOND, FOURTH AND FIFTH VALVES AND CLOSING SAID FIRST, THIRD AND SIXTH VALVES.