Patent 7896197 was granted and assigned to Millipore Sigma on March, 2011 by the United States Patent and Trademark Office.
A fluid dispensing device, suitable for dispensing fluid from a fluid supply to a receptacle, is disclosed, wherein a pliable fluid reservoir is located between the fluid supply and the receptacle, and wherein peristaltic pumps are used to supply and dispense said fluid from the pliable fluid reservoir. The fluid level in the pliable fluid reservoir is electronically monitored with data being transmitted to either or both pumps for the operative control thereof. The pliable fluid reservoir is configured, together with certain connected conduits, as a disposable, easily-installable, single-use unit.