Stress relief cones for high voltage, shielded conductors

Claim 1

A PREFABRICATED ONE-PIECE TAPERED PENNANT-SHAPED STRIP OF INSULATING MATERIAL FOR CONTIGUOUS OVERLYING INSULATIVE CONTACTING CONVOLUTE WRAPPING FROM A LEADING TO A TRAILING END THEREOF ON EXPOSED INSULATION OF A HIGH VOLTAGE CONDUCTIVE GROUND SHIELDED CABLE ADJACENT THE TERMINATED SHEILDING THEREOF AND AXIALLY AWAY THEREFROM TOWARDS A TERMINAL END OF THE CABLE TO PROVIDE A SUBSTANTIALLY THEORETICALLY PERFECT RADIALLY BUILT-UP STRESS RELIEF CONE AGAINST BREAKDOWN POTENTIAL BETWEEN THE EXPOSED INSULATION AND SHIELDING, SAID ONE-PIECE PENNANT-SHAPED STRIP, IN PLANAR DISPOSITION, HAVING A MAXIMUM TRANSVERSE WIDTH AXIALLY BETWEEN LESSER TRENSVERSE WIDTH LEADING AND TRAILING ENDS THEREOF CONTIGUOUSLY CONNECTED ON EACH OPPOSITE SIDE OF A LONGITUDINAL AXIS OF THE STRIP BY A SMOOTHLY BLENDED OPPOSITELY CONVERGING CONTIGUOUS MAJOR MARGINAL EDGE TRACE, THAT PORTION OF THE CONTIGUOUS LENGTH OF ONE OF THE OPPOSITE MAJOR MARGINAL EDGE TRACES OF THE STRIP CONNECTING THE TRAILING END WITH THE MAXIMUM TRANSVERSE WIDTH THEREOF, ON THE SIDE OF THE LONGITUDINAL AXIS ADJACENT THE CABLE SHIELDING ON CONVOLUTE WRAPPING OF THE STRIP ON THE EXPOSED INSULATION OF THE CABLE, CONFORMING TO THE EXPONENTIAL FUNCTION OF THE DOUBLE LOGARITHMIC CURVE OF THE THEORETICALLY PERFECT STRESS RELIEF CONE ESTABLISHED FOR THE RATED VOLTAGE CAPACITY OF THE CABLE, AND SAID STRIP HAVING A GUIDE LINE INWARDLY DISPOSED FROM AND EXTENDING ALONG AT LEAST ONE MAJOR MARGINAL EDGE TRACE THEREOF FOR VISUAL GUIDING CONVOLUTE SUBSTANTIAL REGISTRATION OF THE SAME MARGINAL EDGE IN SUCCESSIVE OVERLYING WRAPS OF THE STRIP.