专利名称：Precision liquid addition device发明人：Allan F. Falcoff申请号：US08/306426申请日：19940919公开号：US05558249A公开日：19960924
摘要：An apparatus for delivering an accurate volume of fluid from a supply vessel toa process vessel or system in which a computer- controlled servo motor and pump areconnected with a modified sampling valve with plunger- type injection device to allowcomplete addition of all metered fluids. The apparatus is particularly useful for additionof pH or viscosity control additives or shading colorants wherein the delivery of smallvolumes with precision is desired.
申请人：E. I. DU PONT DE NEMOURS AND COMPANY
代理人：Rodney B. Carroll
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