Crossarm

Claim 2

A crossarm for securement to an upright utility pole to support conductors in an elevated position, said crossarm comprising: a plurality of at least three cross members arranged in succession in the vertical direction and at oblique angles with respect to a vertical line intersecting each cross member, the ends of adjacent cross members being closer on one side of the vertical line than on the other side of the line so that the succession of cross members creates a generally serpentine configuration; looped support members for providing underlying support for the conductors, the support members being spaced outwardly from the closely spaced ends of adjacent cross members; and a pair of connectors extending between each looped support member and the closely spaced cross member ends opposite to which the support member is positioned so as to connect the looped support members to the cross members, the connectors of each pair being spaced apart in the vertical direction.

Claim 3

A crossarm according to claim 1 wherein the closely spaced ends of adjacent cross members are joined by connecting members and the looped support members are positioned outwardly from the connecting members.

Claim 4

A crossarm according to claim 2 wherein the cross members are straight and the connecting members are arcuate, the connecting members at their center lines being tangent to the center lines of the cross members they interconnect.

Claim 5

A crossarm according to claim 2 wherein the looped support members are circular and the cross members are straight.

Claim 6

A crossarm according to claim 3 wherein the center lines of the adjacent cross members are tangent to the center line of the circular looped support member positioned outwardly from the connecting member which interconnects the closely spaced ends of those adjacent cross members.

Claim 7

A crossarm according to claim 5 wherein the connectors of each pair are arcuate and have their convex faces presented toward one another and their center lines tangent to the center line of the circular support, the center line of the upper connector further being tangent to the center line of the upper of the two adjacent cross members beyond which the circular support member is located, and the center line of the lower connector further being tangent to the lower of the two adjacent cross members beyond which the circular support member is located.

Claim 8

A crossarm according to claim 2 wherein the cross members, the connecting members, the circular looped support members, and the connectors are all hollow and are formed from plastic.

Claim 9

A crossarm according to claim 1 and further characterized by a looped top support connected at one end To the upper end of the uppermost cross member and curving around to a free end located generally opposite to the upper end of the uppermost cross member, the top support being generally bisected by the vertical line and having an upwardly opening groove along the vertical line for receiving a shield wire.

Claim 10

A crossarm according to claim 1 and further characterized by apertures in the cross members along the vertical line for receiving devices for securing the crossarm to a pole.

Claim 11

A crossarm according to claim 1 wherein the connectors of each pair are arcuate and have their convex faces presented toward each other.

Claim 12

A crossarm for securement to an upright utility pole to support electrical conductors in an elevated position, said crossarm comprising: a plurality of at least three cross members arranged in succession in the vertical direction and at oblique angles with respect to a vertical line intersecting each cross member, the ends of adjacent cross members being closer on one side of the vertical line than on the other side of the line, connecting members located intermediate and interconnecting the closely spaced ends of adjacent cross members so that the succession of cross members and connecting members creates a generally serpentine configuration; and support members in the shape of closed loops for providing underlying support for the electrical conductors, the support members being located opposite to and spaced outwardly from the connecting members; and connector means joining the support members to the serpentine configuration formed by the cross members and the connecting members.

Claim 13

A crossarm for securement to an upright utility pole to support electrical conductors in an elevated position, said crossarm comprising: a plurality of at least three cross members arranged in succession in the vertical direction and at oblique angles with respect to a vertical line intersecting each cross member, the ends of adjacent cross members being closer on one side of the vertical line than on the other side of the line, connecting members located intermediate and interconnecting the closely spaced ends of adjacent cross members so that the succession of cross members and connecting members creates a generally serpentine configuration; and support members in the shape of closed loops for providing underlying support for the electrical conductors, the support members being located opposite to and spaced outwardly from the connecting members; and connector means joining the support members to the serpentine configuration formed by the cross members and the connecting members.

Claim 14

A crossarm according to claim 11 wherein the connecting members bow outwardly away from the vertical line so that their convex surfaces are presented toward the looped support members.

Claim 15

A crossarm according to claim 11 wherein the connector means comprises a pair of vertically spaced connectors extended between each looped support and the serpentine configuration formed by the cross members and the connecting members; the connectors being joined to the serpentine configuration at the junctures of the cross members and connecting members therein.

Claim 16

A crossarm for securement to an upright utility pole to support conductors in an elevated position, said crossarm comprising: a plurality of at least three cross members arranged in succession in the vertical direction and at oblique angles with respect to a vertical line intersecting each cross member, the ends of adjacent cross members being closer on one side of the vertical line than on the other side of the line so that the succession of cross members creates a generally serpentine configuration; support members for providing underlying support for the conductors, the support members being spaced outwardly from the closely spaced ends of adjacent cross members and connected to the cross members at the closely spaced ends thereof; a looped top support connected to the upper end of the uppermost cross member and curving upwardly across the vertical line and then downwardly to a position where it again intersects the vertical line, the top support having an upwardly opening groove for receiving a shield wire; and a pulley in the top support at the base of the groove for supporting the shield wire.

Claim 17

A crossarm for securement to an upright utility pole to support conductors in an elevated position, said crossarm comprising: a plurality of at least three cross members arranged in succession in the vertical direction and at oblique angles with respect to a vertical line intersecting each cross member, the ends of adjacent cross members being closer on one side of the vertical line than on the other side of the line so that the succession of cross members creates a generally serpentine configuration; support members for providing underlying support for the conductors, the support members being spaced outwardly from the closely spaced ends of adjacent cross members and connected to the cross members at the closely spaced ends thereof; a looped top support connected to the upper end of the uppermost cross member and curving upwardly across the vertical line and then downwardly to a position where it again intersects the vertical line, the top support having an upwardly opening groove for receiving a shield wire; and a pulley in the top support at the base of the groove for supporting the shield wire.

Claim 18

A crossarm according to claim 14 wherein that end of the curved top support opposite to the end which is connected to the upper crossarm is detached from the upper cross member and is provided with means for securing it to a pole.

Claim 19

A crossarm according to claim 14 wherein the pulley is located to position the shield wire so that it provides at least a 30* angle of protection for conductors carried by the support members below it.

Claim 20

A crossarm according to claim 14 wherein the top support comprises a pair of arcuate segments, one of which attaches to the pole and the other of which is connected with the uppermost cross member, and a connector block interconnecting the two arcuate segmenTs, the upwardly opening groove being in the connector block.

Claim 21

A crossarm according to claim 17 wherein the top support is formed from plastic.