×

Electrical capacitor composed of a consolidated winding or consolidated stack of metallized plastic plies layered to one another and method for the manufacture thereof

  • US 4,771,362 A
  • Filed: 08/24/1987
  • Issued: 09/13/1988
  • Est. Priority Date: 09/02/1986
  • Status: Expired due to Fees
First Claim
Patent Images

1. An electrical capacitor, comprising:

  • a consolidated stack of plastic plies layered against one another and provided with regenerably thin layers of valve metal as coatings on both surfaces of each and every plastic ply, said coatings alternately extending up to ends of said two projections from layer to layer,two projections formed by an incision which proceeds in the direction of the thickness of the stack and roughly in the center of one side thereof;

    metal layers provided on surfaces formed by the ends of said projections in the consolidated stack serving the purpose of electrical contacting, said metal layers being formed by metal spraying, said metal layers connecting the coatings to one another;

    external power leads fastened to said two projections by said metal layers;

    said valve metal coatings covering surfaces of said plastic plies practically up to edges at long sides of said consolidated stock as well as up to both ends of said two projections;

    said two projections being alternately provided with metal-free insulating strips and residual metal strips from plastic ply to plastic ply;

    said incision having a depth greater than a width of said residual metal strips; and

    an extremely thin plastic layer is present as a dielectric on at least one of said coatings on each of said plastic plies, said extremely thin plastic layer completely covering said coating and extending up into a region of said residual metal strips and being at least partially removed above said insulating strips.

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