Abstract: A surface tension device for use in a liquid acquisition reservoir and comprised of a porous membrane that maintains a separation between gas and liquid and thereby isolates accummulated gas from the liquid acquired and subsequently delivered free of entrained gases; and comprised of a porous baffle held spaced from the vessel wall and establishing a liquid acquisition chamber separated from the liquid a storage chamber and wherein pure liquid is acquired and subsequently withdrawn through an opening; the baffle being characterized by its ski-shape as it is installed within the confines of a cylindrical storage vessel with hemispherical ends and to the end that substantially complete acquisition of the available liquid from the resevoir is assured.

Abstract: Air conditioning apparatus for the sensible cooling of useable air by the evaporative process at a cost of operation substantially lower than that of mechanical refrigeration of the same capabilities, and advantageously comprised of modular evaporator and blower units and multiple stages thereof with the use of substantially permanent inexpensive plastic materials conducive to the efficient absorption of heat between separate columns of air, one column subject to the evaporative cooling process with no energy change, and the other column subject to the sensible cooling process with a subtraction of energy from the useable air.