Patents Examined by Laramie E. Askim
  • Patent number: 4670625
    Abstract: A bushing arrangement for conveying an electrical conductor through the casing of high voltage electrical apparatus exposed to the weather comprises a rigid member of synthetic resin cast around, so as to be bonded in a gas tight manner to, the conductor, and incorporating an exterior portion protruding outside the casing, the member being enclosed, over at least the major part of its exterior portion, by a plurality of insulting axially-overlapping weather-resistant collars and a stress cone each having a creepage flange or shed, the member being secured to the casing by a flanged collar. The insulating member may be made of a relatively cheap non-weather-resistant epoxy resin and the collars of EPDM rubber.
    Type: Grant
    Filed: July 16, 1986
    Date of Patent: June 2, 1987
    Inventors: Henry S. Wood, John L. Davenport