Patents Examined by T. Korka
  • Patent number: 5147984
    Abstract: An insulator member comprises a porcelain insulator head and a polymeric shed secured to the insulator head. The insulator member can be used, for example, in an improved electrical line insulator which comprises a) an insulator unit comprising a porcelain head, and a polymeric shed secured to the porcelain head; b) a metal cap and a metal pin each situated at a surface of the insulator unit opposite to the other, the porcelain head forming a recess to receive the pin; c) cement mechanically securing the cap to the insulator unit; and d) cement within the recess and about the pin mechanically securing the pin within the recess. Methods of manufacture are also disclosed.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: September 15, 1992
    Assignee: Raychem Corporation
    Inventors: Linas Mazeika, John A. Midgley