Patent ID: 9250162
Filing Date: 2016-02-02
CPC Classification: B03C,G01N

Claim Text:
1. An electrostatic aerosol sampling apparatus comprising: a chamber including a cavity configured to allow an air flow therethrough; at least one corona wire located within said cavity; at least one grounded sample collection plate disposed downstream of a portion of said at least one corona wire; a high voltage application circuitry configured to generate a corona between said at least one corona wire and said at least one grounded sample collection plate; and at least one means for inducing an air flow through said cavity; wherein said cavity includes: a cylindrical cavity portion in which said at least one corona wire is disposed; and a conical cavity portion adjoining said cylindrical cavity portion and having an increasing horizontal cross-sectional area that increases with distance from said at least one corona wire, wherein said at least one grounded sample collection plate is located on a wall of said cavity located at a base of said conical cavity.