Patent ID: 6790011
Filing Date: 2004-09-14
Classification: B01L,B05B,F04B

Abstract:
A device for diffusing calibrated small volumes or drops of at least one liquid, comprising:at least one displacement path for the liquid defined by a series of pairs of close-together surfaces constructed and arranged to enable the liquid to be retained and to be moved from one pair of surfaces to another; and means for applying an electric field between the pairs of surfaces in order to move the liquid from one pair of surfaces to another; wherein: the series of pairs of close-together surfaces defining at least one displacement path co-operate to store the liquid, to form drops of liquid, and to move liquid drops to an outlet from said path leading towards a drop destination site; and the means for applying an electric field applies a predetermined sequence of electric fields between the pairs of close-together surfaces so as to form drops of liquid from the liquid storage and so as to move the drops to the drop outlet of said path.