×

Closed loop electrostatic levitation system

  • US 4,521,854 A
  • Filed: 10/29/1982
  • Issued: 06/04/1985
  • Est. Priority Date: 10/29/1982
  • Status: Expired due to Term
First Claim
Patent Images

1. Apparatus for electrostatically levitating a charged object, comprising:

  • a pair of spaced main electrodes with continuous electrically conductive plate-like surfaces that face each other, each surface having opposite sides and a substantially continuous surface extending between their opposite sides as seen in a sectional view, said surfaces facing each other along a predetermined, imaginary axis that extends substantially normal to said plate-like surfaces and passes substantially through their centers;

    at least one ring-shaped electrode which surrounds a space lying between said main electrodes, said ring-shaped electrode extending in a continuous circle around said axis; and

    a voltage source coupled to said main and ring-shaped electrodes to apply voltages to them without substantially passing currents around their perimeters.

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