×

Polymeric weathershed surge arrester and method

  • US 6,225,567 B1
  • Filed: 04/27/1999
  • Issued: 05/01/2001
  • Est. Priority Date: 03/01/1996
  • Status: Expired due to Term
First Claim
Patent Images

1. An elastomeric housing for electrical apparatus, comprising a deformable shedded sleeve having a central axis and comprising a tubular core portion with a central bore and a plurality of axially-spaced sheds extending from said core;

  • wherein;

    said core is unstretched when formed and is stretched when an electrical device is inserted in the central bore to form an electrical apparatus, and said sleeve has a first configuration when said core is unstretched and a second configuration when said core is stretched;

    said sheds extend from said core at a first angle relative to said axis when said sleeve is in said first configuration and extend from said core at a second angle relative to said axis when said sleeve is in said second configuration;

    said sheds extend substantially perpendicularly from said core when said sleeve is in said first configuration and said sleeve assumes said second configuration when said core is stretched radially outwardly; and

    when said sleeve is in said first configuration, said sheds include an upper surface that joins said core in a first shoulder having a radius of curvature R1 and a lower surface that joins said core in a second shoulder having a radius of curvature R2, with R1 being grater than R2.

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