Queen Mary & Westfield College

Matthew S Alexander

John P W Stark

Mark D Paine

Kate L Smith

An electrostatic spraying device () and method for dispensing a controlled volume of liquid in pulses using an emitter () having a spray area () from which the liquid can be sprayed, a means for injecting charges into the liquid, whereby, in use, the liquid () is delivered to the spray area by electrostatic forces and electrostatic spraying occurs in one or more pulses whilst the charges are injected. The charges may be injected by a time-varying or constant non-zero electric field so that electrospray occurs above a threshold value.

Electrostatic spraying device and a method of electrostatic spraying

An electrospray apparatus for dispensing a controlled volume of liquid in pulses at a constant frequency is provided. The apparatus comprises an emitter () having a spray area from which liquid can be sprayed, a means for applying an electric field () to liquid in, on or adjacent to the emitter (). In use, liquid is drawn to the spray area by electrostatic forces and electrospray occurs in pulses at a constant frequency whilst the electric field () is applied.

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London, United Kingdom

Matthew S Alexander