Gas absorption apparatus

Claim 1

IN GAS-LIQUID CONTACTING APPARATUS, STRUCTURE COMPRISING A CLOSED CYLINDER, A PISTON MOUNTED FOR RECIPROCATION IN THE CYLINDER AND SEPARATING THE INTERIOR OF THE CYLINDER INTO FIRST AND SECOND CHAMBERS OF VARIABLE VOLUMES, A FIRST VALVE CONTROLLED MEANS FOR DISCHARGING THE SECOND CHAMBER, A PISTON ROD MEANS CARRIED BY THE PISTON REDUCING THE EFFECTIVE AREA OF THE PISTON PRESENTED TO THE FIRST CHAMBER AND EXTENDING THROUGH THE FIRST CHAMBER END OFTHE CYLINDER, SAID PISTON CONTINUOUSLY PRESNETING A RELATIVELY SMALL FIRST AREA TO THE FIRST CHAMBER AND CONTINUOUSLY PRESENTING A RELATIVELY LARGE SECOND AREA TO THE SECOND CHAMBER, A RESTRICTED PASSAGEWAY MEANS DISPOSED SOLELY IN AND EXTENDING ENTIRELY THROUGH THE PISTON FROM THE FIRST CHAMB ER SIDE TO THE SECOND CHAMBER SIDE THEREOF AND AFFORDING DIRECT FLUID COMMUNICATION THEREBETWEEN, A SECOND VALVE CONTROLLED MEANS TO SUPPLY LIQUID TO THE FIRST CHAMBER AT A PRESSURE IN EXCESS OF AMBIENT PRESSURE, AND A THRID VALVE CONTROLLED MEANS TO SUPLY GAS DIRECTLY TO THE SECOND CHAMBER AT A PRESSURE IN EXCESS OF AMBIENT PRESSURE, WHEN THE FIRST CHAMBER IS LIQUID FILLED AND EXPANDED BY PISTON DISPLACEMENT TOWARD THE SECOND CHAMBER AND SAID FIRST AND SECOND VALVE CONTROLLED MEANS ARE CLOSED, WITH THE PRESSURE OF THE GAS SUPPLIED TO THE SECOND CHAMBER ACTING ON THE RELATIVELY LARGE SECOND AREA TO RAISE THE PRESSURE OF THE LIQUID IN THE FIRST CHAMBER ACTING ON THE RELATIVELY SMALL FIRST AREA TO A VALUE IN EXCESS OF THE PRESSURE IN THE SECOND CHAMBER, WHEREBY LIQUID PASSES THROUGH THE RESTRICTED PASSAGEWAY MEANS FROM THE FIRST CHAMBER TO BE INTRODUCED DIRECTLY INTO GAS CONTAINED IN THE SECOND CHAMBER WITH CONCURRENT MOVEMENT OF THE PISTON TOWARD THE FIRST CHAMBER.