Calibratable automatic fluid dispenser

Claim 1

A fluid dispenser comprising: pump means arranged and constructed for dispensing a fluid dose in increments of essentially equal size; calibration collection means for receiving the fluid output of said pump means; conduit means connected with said pump means for transfer of said fluid to said calibration collection means; counting means for counting the number of increments of fluid pumped by said pump means; sensing means for detecting a calibration volume output of said pump means in said calibration collection means; computer means having a memory and programmable for dividing on command the number of increments of fluid pumped to said calibration collection means by said calibration volume pumped to said calibration collection means for determining the fluid volume per increment, hereinafter termed "calibrated value," and thereby calibrating said pump; manually operable calibration means for causing said "calibrated value" to be stored in said memory; means for selecting a volume of fluid to be dispensed to a receiver; controller means operatively connected with said pump means and said computer means, said controller means being adapted to cause said computer means to divide the numeric value of said selected volume by said stored "calibrated value", said division determining the necessary number of increments to be dispensed, said controller means being further adapted to cause said pump means to operate and deliver said number of increments, whereby the selected volume of fluid is dispensed to said receiver.