EP0150571A1 — Electrostatic coating system
Assigned to Nordson Corp · Expires 1985-08-07 · 41y expired
What this patent protects
An electrostatic coating system in which conductive coating material to be sprayed is electrostatically charged by charging discrete droplets of coating material transferred from a coating material source (11) to a supply of coating material for a spray gun (12). The source of co…
USPTO Abstract
An electrostatic coating system in which conductive coating material to be sprayed is electrostatically charged by charging discrete droplets of coating material transferred from a coating material source (11) to a supply of coating material for a spray gun (12). The source of coating material includes an electrically grounded reservoir (14) of coating material having a nozzle aperture (26) in a bottom portion thereof, and the coating material in the reservoir is mechanically vibrated to produce a pulsed jet droplet flow of coating material from the nozzle into a supply container (17) for the spraygun. A high voltage electrode (19) at the location of droplet formation induces an electrostatic charge on the droplets in order to electrostatically charge the coating material transferred to the gun supply container (17) for use by the gun (12) for electrostatic coating.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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