Installation for feeding and atomizing liquid, especially combustion fuel
Nozzle for spraying apparatus
Spraying apparatus Patent #: 4673132
ApplicationNo. 801967 filed on 12/03/1991
US Classes:239/690.1, Induction charging239/154, Hand manipulated discharge means239/704With fluid entrainment
ExaminersPrimary: Kashnikow, Andres
Assistant: Merritt, Karen B.
Attorney, Agent or Firm
Foreign Patent References
International ClassesB05B 005/043
AbstractA portable electrostatic liquid sprayer including a small internal combustion engine with a magneto-type ignition system providing a high voltage source to inductively charge atomized droplets being sprayed onto crops or plants. A conductive voltage tap is coupled between a spark plug boot from the magneto and the high voltage terminal of a spark plug for access to the high voltage provided by the magneto. A wire is connected to the voltage tap and routed and connected to an RC filter and rectifier circuit mounted in the sprayer head. A ground wire is electrically coupled to the chassis of the engine and also routed and connected to the RC filter and rectifier circuit. An electrode mounted near the outlet of the sprayer head and connected to the RC filter and rectifier circuit establishes an electrostatic field within the sprayer head effective to inductively charge the atomized droplets as they are being ejected from the sprayer head.