Reference electrode bridge assembly

Claim 1

IN A SYSTEM FOR ANODICALLY MINIMIZING CORROSION OF A VESSEL HAVING A TOP AND A BOTTOM AND CONTAINING A CORROSIVE ELECTROLYTIC SOLUTION UNDER PRESSURE, THE COMBINATION OF: A RESERVOIR HAVING A TOP AND A BOTTOM AND ADAPTED TO CONTAIN A SUPPLY OF ELECTROLYTE; A CONDUIT CONNECTING THE BOTTOM OF THE RESERVOIR TO THE BOTTOM OF THE VESSEL WHEREBY SAID SOLUTION AND SAID ELECTROLYTE WILL GRAVIATE INTO THE OPPOSITE ENDS THEREOF; A SEMI-POROUS BARRIER MOUNTED IN AND FILLING SAID CONDUIT, THEREBY PREVENTING FLOW OF THE SOLUTION INTO THE RESERVIOR AND PREVENTING FLOW OF THE ELECTROLYTE INTO THE VESSEL WHILE FORMING AN IONIC BRIDGE BETWEEN THE SOLUTION AND THE ELECTROLYTE; A STANDARD ELECTRODE SECURED IN THE RESERVIOR IN CONTACT WITH THE ELECTROLYTE; A SUPPLY OF PRESSURIZED GAS; A GAS FEED CONDUIT CONNECTING THE SUPPLY OF PRESSURIZED GAS TO THE RESERVIOR ABOVE THE LEVEL OF THE ELECROLYTE; A GAS DISCHARGE CONDUIT CONNECTED TO THE RESERVIOR ABOVE THE LEVEL OF THE ELECTROLYTE; VALVES IN SAID FEED AND DISCHARGE CONDUITS; MEANS FOR SENSING THE PRESSURE IN THE VESSEL AND THE RESERVOIR; AND MEANS CONNECTED TO SAID SESNING MEANS FOR SELECTIVELY OPENING AND CLOSING SAID VALVES IN ACCORDANCE WITH THE RELATIVE PRESSURES IN THE VESSEL AND THE RESERVIOR TO MAINTAIN THE PRESSURE SUBSTANTIALLY EQUAL IN THE VESSEL AND IN THE RESERVIOR.