Patent ID: 9050611
Filing Date: 2015-06-09
Classification: A61F,B05B

Abstract:
1. An apparatus for electrospraying particles, the apparatus comprising: a particle source; a dispensing device configured to receive source material from the particle source, wherein the dispensing device comprises a slit defined by at least two opposing surfaces terminating at a dispensing end of the dispensing device, wherein the dispensing device defines a plurality of nozzle structures spaced along the slit at the dispensing end of the dispensing device, wherein each nozzle structure comprises at least one nozzle projection extending a distance beyond portions of the at least two opposing surfaces terminating along the slit defined at the dispensing end of the dispensing device to provide a cone jet to spray microdroplets; and an electrode isolated from the dispensing end, wherein a nonuniform electrical field is created between the dispensing end and the electrode such that a spray of microdroplets having an electrical charge applied thereto is dispensed from the dispensing end of dispensing device.