Utility pole and attachments formed by pultrusion of dielectric insulating plastic, such as glass fiber reinforced resin

A hollow utility pole of fiber reinforced resin, of substantially uniform overall cross-sectional dimension throughout its length and substantially symmetrical about its long axis, integrally-formed by the process of pultrusion, and including integrally-formed internal supporting means comprising at least one diametrically-disposed internal strut extending along its length, and integrally-formed projections from the outer surface for accommodating utility wire supports;

• wherein said integrally-formed projections comprise one or more pairs of fins directed outwardly in a radial direction from the periphery of said pole, and extending along the length of said pole;
• the combination comprising at least one attachment having a longitudinal slot constructed to fit over and seat lengthwise along at least one of said fins, said attachment having one or more lateral slots for accommodating and supporting electrical current bearing utility cables, and means for securing said electrical current bearing utility cables in said one or more lateral slots.

A hollow utility pole of fiber reinforced resin, of substantially uniform overall cross-sectional dimension throughout its length and substantially symmetrical about its long axis, integrally-formed by the process of pultrusion, and including integrally-formed internal supporting means and projections from the outer surface for accommodating utility wire supports;

• wherein said integrally-formed internal supporting means comprise a pair of diametrically-disposed internal struts disposed at right angles to each other, extending along its length which divide the internal portion of said pole into four substantially equal quadrants along the length of said body portion;
• each of said diametrically-disposed struts terminating at its opposite lateral edges in a pair of radially-projecting fins which extend substantially along the length of said body portion.

A hollow utility pole of fiber reinforced resin, of substantially uniform overall cross-sectional dimension throughout its length and substantially symmetrical about its long axis, integrally-formed by the process of pultrusion, and including integrally-formed internal supporting means and projections from the outer surface for accommodating utility wire supports;

• wherein said integrally-formed internal supporting means comprise at least one diametrically-disposed internal strut extending along its length;
• the said pole comprising in combination a closure constructed to seat on the upper edge of the body of said pole for shielding the interior of said pole from the weather and entrance therein by animals, said closure providing a slight clearance between the base of said closure and the upper edge of said body to permit the passage of air.

In combination with an electrical current delivery system comprising a hollow non-metallic utility pole wherein the body of said pole has one or more internal supporting ribs and has one or more pairs of fins directed outwardly from the periphery of said pole, the subcombination comprising an insulating attachment, which is formed from fiber reinforced thermoset plastic material, having a longitudinal slot constructed to fit over and seat lengthwise along one of said fins, said attachment having one or more lateral slots for accommodating and supporting electrical current bearing utility cables, and means for securing said electrical current bearing utility cables in said one or more lateral slots.

In combination with an electrical current delivery system comprising a hollow non-metallic utility pole wherein the body of said pole has one or more internal supporting ribs and has one or more pairs of fins directed outwardly from the periphery of said pole, the subcombination comprising a closure of insulating material, which is formed from fiber reinforced thermoset plastic material, constructed to seat on the upper edge of the body of said pole for shielding the interior of said pole from the weather and entrance therein by animals, said closure providing a slight clearance between the base of said closure and the upper edge of said body to permit the passage of air.