Patent ID: 8551562
Filing Date: 2013-10-08
Classification: B05C

Abstract:
1. A method of operating a fluid dispensing system, comprising the steps of: providing a supply of common fluid to be dispensed; providing an output device having at least one dispensing nozzle; providing at least two pumps for fluidically pumping fluid from said supply of fluid to said at least one dispensing nozzle; and interposing valve means between said at least two pumps and said at least one dispensing nozzle for permitting said fluid dispensing system to dispense a varied volume of fluid through THREE dispensing states, a FIRST OFF state wherein said valve means is CLOSED with respect to both of said at least two pumps such that fluid outputs from both of said at least two pumps is prevented from reaching said at least one dispensing nozzle, a SECOND PARTIAL VOLUME state wherein said valve means is CLOSED with respect to a first one of said at least two pumps but OPENED with respect to a second one of said at least two pumps so as to permit the fluid output from said second one of said at least two pumps to reach said at least one dispensing nozzle, and a THIRD FULL VOLUME state wherein said valve means is OPENED with respect to both of said at least two pumps so as to permit the fluid outputs from both of said at least two pumps to reach said at least one dispensing nozzle.