公开(公告)号：US20180264491A1

公开(公告)日：2018-09-20

申请号：US15919779

申请日：2018-03-13

申请人： Jonas Goldowsky ,  Noa Schmid ,  Siegfried F. Graf ,  Helmut Knapp

发明人： Jonas Goldowsky ,  Noa Schmid ,  Siegfried F. Graf ,  Helmut Knapp

IPC分类号： B05B7/24 ,  G01F1/36 ,  G01F15/075 ,  G01F23/14

CPC分类号： B05B7/2489 ,  B01L3/0293 ,  B01L2200/0605 ,  B01L2200/146 ,  B01L2400/0487 ,  G01F1/36 ,  G01F11/284 ,  G01F13/006 ,  G01F15/0755 ,  G01F22/00 ,  G01F22/02 ,  G01F23/14

摘要： An apparatus and method for precisely dispensing liquid fluid from a container are disclosed. The apparatus comprises a metering unit having a gas feedthrough channel with a first end extending in a gas containing part of the chamber and a second end opposite the first end extending outside the chamber, the metering unit further comprising a flow sensing assembly configured to measure a gas pressure differential Δp and/or gas flow V{dot over ( )} within the gas feedthrough channel and to introduce or release a determined volume of gas in the chamber to dispense a controlled volume of liquid from the chamber.