Siecor Corporation

MaryAnn Clarke

Warren Welborn McAlpine

A calibration apparatus and method for making a grooved plastic spacer for a slotted core telecommunications cable. The method includes attaching a calibration apparatus having helically shaped calibration members to an extrusion die. The calibration members are inserted into respective grooves of the spacer so that, as the spacer exits from the die, the calibration members maintain the shape of the grooves until the spacer is sufficiently cooled.

Method for making a grooved spacer for a telecommunications cable

A slotted core telecommunications cable includes a spacer made of plastic having a melt flow index equal to or greater than 0.65 g/10 min. Each spacer rib has a longitudinally extending base between adjacent groove corners whose thickness does not exceed about 1.3 mm.

Slotted core telecommunications cable

An apparatus and method for making a grooved plastic spacer for a slotted core type telecommunications cable includes a helically shaped calibration member inserted into each groove after extrusion of the spacer to maintain the shape of the groove until it is sufficiently cooled. A telecommunications cable made according to the method includes a spacer made of plastic having a melt flow index equal to or greater than 0.65 g/10 min.

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Granite Falls, NC, United States of America

MaryAnn Clarke