Fluid transport system

Claim 1

A FLUID TRANSPORT SYSTEM FOR RECIRCULATING FLUID BIDIRECTIONALLY BETWEEN TWO CONTAINERS AND ADAPTED TO PROVIDE UNIDIRECTIONAL FLUID FLOW THROUGH A FLUID UTILIZATION APPARATUS, THE SYSTEM COMPRISING IN COMBINATION: A FIRST, FLUID TIGHT, RIGID CONTAINER HAVING A FIRST AND SECOND CHAMBER PORTION, EACH CHAMBER PORTION HAVING MEANS ADAPTED TO CONNECT TO A DIFFERENT FLUID SOURCE AND FLEXIBLE, DIAPHRAGM MEANS ATTACHED INSIDE SAID RIGID CONTAINER FOR SEPARATING AND ISOLATING SAID FIRST CHAMBER PORTION FROM SAID SECOND CHAMBER PORTION, SAID CHAMBER PORTIONS BEING BOUNDED BY THE INNER SURFACE OF SAID RIGID CONTAINER AND COMMONLY SHARING SAID DIAPHRAGM MEANS, EACH OF SAID CHAMBER PORTIONS BEING ADAPTED TO HOLD A VOLUME OF FLUID SUBSTANTIALLY EQUAL TO THE ENTIRE VOLUME OF SAID RIGID CONTAINER, ALTERNATIVELY; A SECOND, FLUID TIGHT, RIGID CONTAINER HAVING A THIRD AND FOURTH CHAMBER PORTION, EACH CHAMBER PORTION HAVING MEANS ADAPTED TO CONNECT TO A DIFFERENT FLUID SOURCE AND FLEXIBLE DIAPHRAGM MEANS ATTACHED INSIDE SAID SECOND RIGID CONTAINER FOR SEPARATING AND ISOLATING SAID THIRD CHAMBER PORTION FROM SAID FOURTH CHAMBER PORTION, SAID CHAMBER PORTIONS BEING BOUNDED BY THE INNER SURFACE OF SAID SECOND RIGID CONTAINER AND COMMONLY SHARING SAID DIAPHRAGM MEANS, EACH OF SAID PORTIONS BEING ADAPTED TO HOLD A VOLUME OF FLUID SUBSTANTIALLY EQUAL TO THE ENTIRE VOLUME OF SAID RIGID CONTAINER, ALTERNATIVELY; FIRST, DRIVING FLUID SWITCHING MEANS CONNECTED TO SAID RIGID CONTAINERS AND ADAPTED TO CONNECT TO SOURCES OF DRIVING FLUID UNDER RELATIVELY HIGH PRESSURE AND RELATIVELY LOW PRESSURE, SAID FIRST FLUID SWITCHING MEANS HAVING A FIRST OPERATING CONFIGURATION FOR COUPLING SAID FIRST CONTAINER TO THE HIGH PRESSURE SOURCE AND SAID SECOND CONTAINER TO THE LOW PRESSURE SOURCE, AND A SECOND OPERATING CONFIGURATION FOR COUPLING SAID FIRST CONTAINER TO THE LOW PRESSURE SOURCE AND SAID SOURCE CONTAINER TO THE HIGH PRESSURE SOURCE; AND SECOND, DRIVEN FLUID SWITCHING MEANS COMPRISING A BRIDGE HAVING UNIDIRECTIONAL FLOW MEANS IN EACH BRIDGE ARM CONNECTED TO SAID RIGID CONTAINERS AND ADAPTED TO CIRCULATE A DRIVEN FLUID THROUGH UNIDIRECTIONALLY A FLUID UTILIZATION APPARATUS, SAID SECOND FLUID SWITCHING MEANS HAVING AN OUTLET BRANCH FOR PROVIDING FLUID TO THE FLUID UTILIZATION APPARATUS AND AN INLET BRANCH FOR RECEIVING FLUID FROM THE FLUID UTILIZATION APPARATUS, SAID SECOND FLUID SWITCHING MEANS HAVING A FIRST OPERATING CONFIGURATION CORRESPONDING TO SAID FIRST FLUID SWITCHING MEANS SECOND CONFIGURATION IN RESPONSE TO PRESSURE DIFFERENTIAL FOR CONNECTING SAID FIRST CONTAINER TO SAID OUTLET BRANCH AND SAID SECOND CONTAINER TO SAID INLET BRANCH, WHEREBY AN APPLICATION OF A DRIVING FLUID PRESSURE DIFFERENTIAL BETWEEN SAID FIRST AND SECOND CONTAINERS CAUSES A FLOW OF DRIVEN FLUID BETWEEN SAID FIRST AND SECOND CONTAINERS, AND WHEREBY SAID OUTLET BRANCH AND THE RELATIVELY HIGH PRESSURE SOURCE ARE RESPECTIVELY CONNECTED TO DIFFERENT CHAMBER PORTIONS OF THE SAME ONE OF SAID CONTAINERS AND THE INLET BRANCH AND THE LOW PRESSURE SOURCE ARE RESPECTIVELY CONNECTED TO DIFFERENT CHAMBER PORTIONS OF THE SAME OTHER OF SAID CONTAINERS.