Patent ID: 8382445

Claim:
A pump comprising: a first chamber housing comprising: a first pumping chamber and a first fluid chamber, wherein the first pumping chamber and the first fluid chamber are separated by a first diaphragm; a second chamber housing comprising: a second pumping chamber and a second fluid chamber, wherein the second pumping chamber and the second fluid chamber are separated by a second diaphragm, wherein the first diaphragm and the second diaphragm are operatively connected to a connecting rod that enables the first and second diaphragms to move in a reciprocal manner; an air distribution system for alternately supplying a compressed fluid to the first and second fluid chambers to cause a pumped fluid to be pumped through the first and second pumping chambers; and, an air logic controller operatively connected to a center section of the pump for controlling the supply of the compressed fluid into the pump comprising: an input valve assembly; a flow restrictor; and, a first time delay relay, wherein upon receiving a first signal from the air distribution system the first time delay relay transmits the first signal to the input valve assembly to cause a first volume of the compressed fluid to be supplied to the pump for a first amount of time, wherein the transmission of the first signal is at least partially caused by the reciprocal movement of the first and second diaphragms, wherein upon expiration of the first amount of time the input valve assembly causes a second volume of compressed fluid to be supplied to the pump, wherein the second volume of compressed fluid is less than the first volume of compressed fluid.