A flowmeter is provided for measuring the flow rate of liquids, particularly liquids with solids suspended therein, or corrosive liquids, by measuring a flow without any contact between the sensing elements of the flowmeter and the liquid. The flowmeter is connected to upstream piping and downstream...http://www.google.de/patents/US6792814?utm_source=gb-gplus-sharePatent US6792814 - Flowmeter
