Composite insulator, segment used for producing the same and met

Details Composite insulator, segment used for producing the same and met Composite insulator, segment used for producing the same and met

1995-06-07

1997-07-15

Cannon, James C.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

174176, 174179, 174209, 174211, 249126, 2643281, 2643288, 425190, 425192R, B29C 4503, B29C 4514, B29C 4517, H01B 1760

Patent

active

056481322

ABSTRACT:
A composite insulator having a core member and a housing member integrally arranged around the core member, the housing member being constructed by a trunk portion and a shed portion, has a creepable distance extending means arranged on a lower plane of the shed portion. Moreover, a segment used for producing the composite insulator has a pair of segment molds detachably connected at a partition plane having a through-hole at its center portion through which the core member is arranged, an upper plane forming portion arranged at its one end surface for defining an upper plane of the shed portion, and a lower plane forming portion arranged at its other end surface for defining a lower plane of the shed portion; and a partition for forming the creepage distance extending means arranged at the lower plane forming portion. Further, the composite insulator is produced by arranging the core member in a through-hole of a mold constructed by integrating a plurality of segments, supplying an elastic polymer material into a space between the mold and the core member, curing the elastic polymer material and separating the mold at the partition plane.

REFERENCES:
patent: 4053707 (1977-10-01), Ely et al.
patent: 4129745 (1978-12-01), Korischum
patent: 4174464 (1979-11-01), Kawaguchi et al.
patent: 4724284 (1988-02-01), Wheeler
patent: 4973798 (1990-11-01), Parraud et al.
patent: 5523038 (1996-06-01), Kunieda et al.

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