Composite insulator structure and method of construction
AssigneeMacLean-Fogg Company
InventorJiri Pazdirek
Life of this patent
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Abstract
A composite link and insulator, and method of construction, includes a fiberglass body. The body is formed by coating glass fibers with a liquid resin and winding the fibers around a plurality of tubular fittings or bushings in two layers, a first extending longitudinally of the body and the second transversely and around the first. A polymer shield layer and weathersheds are injection molded over the fiberglass body to create an insulator.
Claims16
A composite insulator comprising:
- a) a body comprised of glass fiber;
- b) at least one bushing embedded in said body;
- c) a shield layer around said body;
- and
- d) a plurality of weathersheds on said shield layer
- e) said body being further comprised of a solid rod portion formed by winding layers of said glass fiber.
A composite insulator comprising:
- a) a first layer of glass fibers;
- b) a second layer of glass fibers wound around said first layer;
- c) a rod portion comprised of said first and second layers of glass fiber;
- and
- d) a shield layer and weathersheds molded in one piece over said glass fibers.
A composite link comprising:
- a) a body comprising primarily glass fiber;
- b) said body having a plurality of fittings embedded therein;
- c) said fibers being coated with resin and wound around and between said fittings to form a primary layer;
- d) said resin coated fibers also being wound around said primary layer to form a secondary layer.
A composite link which may be used as the body component of a power line insulator, comprising:
- a) two bushing members spaced a predetermined distance from each other;
- b) a length of glass fiber strand means which has been wetted with a liquid resin;
- c) said length of wetted glass fiber strand means being wound around and between said bushings to form two longitudinally extending primary layers of wetted glass fiber strand means extending between said two bushings;
- d) another length of glass fiber stand means which has been wetted with a liquid resin;
- e) said other length of wetted glass fiber strand means being wound around said longitudinally extending primary layers, transversely thereof, under sufficient tension to form a secondary layer of wetted glass fiber strand means and draw at least a portion of the length of said each of primary layers between said bushings into engagement with each other.
A composite insulator comprising:
- a) a body comprised of glass fiber;
- b) at least one bushing embedded in said body;
- c) a shield layer around said body;
- d) a plurality of weathersheds on said shield layer;
- e) said body being further comprised of a solid rod portion having a central axis extending through a core area of said rod;
- f) said core area being substantially filled with longitudinally wound first layers of said glass fiber;
- and
- g) a second layer of glass fibers wound transversely across and around said first longitudinal layer.
Dependencies are inferred from the claim text.