Apparatus for injecting a fluid into a second fluid

Claim 1

AN APPARTUS FOR INCREMENTALLY ADDING KNOWN QUNTITIES OF A FIRST FLUID IN A PREDETERMINED RATIO TO A FLOWING STREAM OF A SECOND FLUID, COMPRISING CONDUIT MEANS THROUGH WHICH THE SECOND FLUID FLOWS, SAID CONDUIT MEANS HAVING THEREIN A METERING MEANS HAVING AN OUTPUT RESPONSIVE TO THE FLOW OF SAID SECOND FLUID THROUGH THE CONDUIT, A FIRST CLOSED LIQUID RESERVOIR HAVING AN INLET AND AN OUTLET, SAID INLET BEING PROVIDED WITH A PUMP MEANS HAVING A PEDETERMINED DISPLACEMENT PER STROKE FOR INTRODUCING A KNOWN QUANTITY OF LIQUID INTO SAID FIRST RESERVOIR, A SECOND CLOSED RESERVOIR FOR SAID FIRST FLUID HAVING AN INLET AND AN OUTLET, THE OUTLET OF SAID FIRST RESERVOIR AND THE INLET OF SAID SECOND RESERVOIR COMMUNICATING WITH EACH OTHER THROUGH A LIQUID PISTON FORMED BY A BODY OF A LIQUID IMMISCIBLE AND INERT WITH THE LIQUID IN SAID FIRST LIQUID RESERVOIR AND SAID FIRST FLUID WHEREBY INTRODUCTION OF SAID KNOWN QUANTITY OF THE LIQUID INTO SAID FIRST RESERVOIR DISPLACES AN EQUIVALENT AMOUNT OF SAID FIRST FLUID FROM SAID SECOND RESERVOIR, THE OUTLET FOR SAID SECOND RESERVOIR COMMUNICATING WITH SAID CONDUIT MEANS FOR THE SECOND FLUID, AND AN ENERGIZING CIRCUIT FOR ACTIVATING SAID PUMP MEANS, THE OUTLET OF SAID METERING MEANS INCLUDING MEANS IN SAID ENERGIZING CIRCUIT FOR COMPLETING SAID CIRCUIT UPON THE METERING OF THE PREDETERMINED FLOW OF SAID SECOND FLUID THROUGH SAID CONDUIT MEANS TO THEREBY INTRODUCE THE KNOWN QUANTITY OF SAID FIRST FLUID IN A PREDETERMINED RATIO INTO SAID SECOND FLUID.