Method of the dosed application of a liquid onto a surface

Details Method of the dosed application of a liquid onto a surface Method of the dosed application of a liquid onto a surface

2007-07-24

2007-07-24

Warden, Jill (Department: 1743)

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

C422S091000, C422S105000, C436S180000, C222S052000

Reexamination Certificate

active

09868408

ABSTRACT:
The invention relates to a method of the dosed application of a liquid onto to selected portion of the surface of a substrate (A) by means of spraying under the influence of an electric current. According to the invention the liquid is fed at a flow rate between 0.01 pl/s and 1 ml/s to a distal tip (3) of a capillary (1) having an inside diameter of less than 150 μm, wherein the distance between the distal tip and the surface (A) is less than 2 mm. Surprisingly it has been shown that it is possible in this manner to apply liquid to a restricted surface of a defined size.

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patent: WO 98/56894 (1998-12-01), None
patent: WO 98/58745 (1998-12-01), None
Desai et al, A MEMS Electrospray Nozzle for Mass Spectroscopy, 1997 Internat'l Conf. on Solid State Sensors and Actuators (Transducers '97), May 1997, p. 927-930.

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