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Electrostatically positioned blind insert for insulated glass

  • US 5,850,861 A
  • Filed: 10/10/1996
  • Issued: 12/22/1998
  • Est. Priority Date: 10/10/1996
  • Status: Expired due to Fees
First Claim
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1. An electrostatically controlled blind system comprising:

  • a plurality of elongated, electroconductive louvers each having a longitudinal axis, each of said louvers having a plurality of apertures formed therein at predetermined locations, said louvers further including pivoting means installed thereon in generally parallel relation to said longitudinal axis at a predetermined offset position in relation thereto;

    a plurality of vertically disposed louver supporting means installed within said apertures and being disposed in pivoting engagement with said pivoting means such that said louvers are horizontally arranged in parallel, spaced apart relation, said louvers being supported in an unbalanced condition and biased downwardly about said axis to a closed condition due to gravitational force;

    at least one sheet of electroconductive glass positioned in a plane parallel to a plane defined by said longitudinal axes of said louvers and in close proximity thereto, said glass being disposed in electrical connection to said louvers and being electrically grounded; and

    a variable electrostatic power source being electrically connected to said louvers such that when an electrostatic charge is applied to said louvers, an opposite electrostatic charge is induced on said glass creating an electrostatic force of attraction between said louvers and said glass enabling said louvers to be rotatably positioned about said axis to an open condition whereby the passage of light therethrough can be regulated.

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