Vacuum capacitor

  • US 6,307,729 B1
  • Filed: 08/09/1999
  • Issued: 10/23/2001
  • Est. Priority Date: 08/07/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. A vacuum capacitor comprising:

  • an insulating envelope;

    a pair of end electrodes, each end electrode being brazed to a corresponding end of the insulating envelope and being formed together with the insulating envelope to constitute a vacuum vessel;

    a plurality of cylindrical electrode plates, each cylindrical electrode plate, constituting one of a pair of cylindrical electrodes, having a mutually different diameter and being extended along the insulating envelope from an inner surface of the corresponding one of the pair of end electrodes so as to be inserted into a space between the mutually adjacent cylindrical electrode plates constituting the other of the pair of cylindrical electrodes; and

    a positioning member to position one of the pair of cylindrical electrodes to the other of the pair of cylindrical electrodes in such a manner as to equalize a spatial interval between each cylindrical electrode plate and wherein each of the pair of end electrodes is formed substantially in a letter T shape of cross section and wherein the positioning member comprises a plurality of circular U-shaped rails extended concentrically at equal spatial intervals and vertically on the inner surface of each of the pair of end electrodes, each circular U-shaped rail receiving the corresponding one of the cylindrical electrode plates of each of the pair of cylindrical electrodes.

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