| 20090206274 | MULTI-ELECTRODE NEGATIVE ION GENERATOR - A negative ion generator includes a multi-electrode device with an emitter for generating a current. A first counter electrode includes an aperture therein with a distal end of said emitter being operatively positioned within said first counter electrode. A second cylindrical electrode includes an aperture therein with the second counter electrode being spaced a predetermined distance from the first counter electrode and being operatively positioned relative to the emitter for increasing the through-put of the negative ion generator by reducing the total emitted current while maintaining a fairly constant level of available negative ion current. | 08-20-2009 |
