Instrument for air ionization
OwnerCecil A. Lawsinventor
Life of this patent
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Abstract
An air ionizer is provided of the type in which a corona discharge is produced at the point of a sharp `needle` by connecting it to a source of high potential. One or more needles, mounted in an insulator, point in a direction opposite to the eventual flow of air ions. At ions emitted from the point of the needle are reflected by a reflector. The reflector may comprise a sheet of insulating material or an electrically conductive material, e.g. a metal, mounted on insulators. The reflector may be provided with perforations for the passage of air therethrough such that the ionizer may, with advantage, be placed in a moving air stream. The insulator on which the needle(s) is or are mounted may comprise a polythene cable or a printed circuit board.
Claims10
An instrument for air ionization comprising a needle mounted in an insulator and having a pointed end, and an air ion reflector, the needle, in operation of the instrument, being connected to a source of high potential, and the needle point being directed towards said air ion reflector, in a direction opposite to that in which the eventual flow of air ions is required.
Dependencies are inferred from the claim text.