Patent ID: 6599755
Filing Date: 2003-07-29
Classification: B01J,B01L,B41J,C40B,Y10T

Abstract:
A method of depositing small amounts of liquid onto a substrate (13), which comprises taking up said liquid through a pipette tip (1) which is connected to a flexible delivery line (2) by expanding said delivery line (2) and ejecting small amounts of liquid by exposing said delivery line to an impulse that is transmitted to said liquid contained in said delivery line, wherein the delivery line (2) is provided with at least a first and a second cross-sectional control instrument (4, 5), which close the delivery line (2) while the delivery line (2) is connected to a container of said liquid, and said taking up of said liquid is carried out by opening said second cross-sectional control instrument (5) to cause said expanding of the stored volume in said delivery line.