Method for controlling cable boring
AssigneeAT&T Corp.
InventorsHossein Eslambolchi, John Sinclair Huffman
Life of this patent
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Abstract
A boring operation performed by a boring head (18) is controlled to avoid interference with an adjacent buried conveyance (20) by first locating the conveyance and thereafter establishing a safety zone (24) thereabout. After establishing the safety zone, a check is made along the border (24a) of the safety zone adjacent the intended bore path for the presence of a monitor signal radiated by the bore head. If the bore monitor signal is detected at the safety zone border, an alert is generated.
Claims7
A method for controlling a boring operation performed by a boring head to avoid interference between the boring head and an adjacent buried conveyance as the boring head travels an intended path, comprising the steps of:
- locating the conveyance and establishing a safety zone thereabout such that the safety zone has a longitudinal border parallel to the intended boring head path and spaced a prescribed distance from the conveyance;
- transmitting from the boring head a monitoring signal at a known frequency upon commencing upon the boring operation;
- checking along the safety zone border for the presence of the monitoring signal transmitted from the boring head;
- and if said signal is detected, then
- generating an alert.
Dependencies are inferred from the claim text.