×

Device for applying electrostatically charged lubricant

  • US 5,176,321 A
  • Filed: 11/12/1991
  • Issued: 01/05/1993
  • Est. Priority Date: 11/12/1991
  • Status: Expired due to Fees
First Claim
Patent Images

1. A device for electrostatically charging and dispensing a high resistivity cutting lubricant onto a workpiece comprising:

  • a source of high resistivity cutting lubricant;

    a capillary tube having an entrant end in fluid communication with said high resistivity cutting lubricant and a tapered discharge end forming a sharp point;

    a high voltage power supply for generating a high voltage of less than 5,000 volts d.c., said power supply having a positive terminal and a negative terminal;

    a high voltage electrode having its one end connected to one of the positive and negative terminals of said power supply and having its other end operatively coupled to the discharge end of said capillary tube; and

    a nearby grounded electrode disposed in a spaced-apart relationship from the discharge end of said capillary tube so as to create a high electric field therebetween for electrostatically charging said lubricant,whereby said lubricant is atomized and projected in the form of a steady and controlled stream of charged particles away from the discharge end of said capillary tube to within the vicinity of or all the way to the workpiece before the stream of charged particles bursts into an aerosol cloud of charged droplets for dispensing them onto the workpiece.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×