A device for metering and measuring quantities of liquid, in particular in a pump for liquid fuels, having a plurality of volume meters, an assigned valve being arranged upstream of each volume meter, and having a liquid supply which branches into individual supply lines opening out into the valves,...http://www.google.com.au/patents/US6196065?utm_source=gb-gplus-sharePatent US6196065 - Device metering and measuring quantities of liquid
