Locating arrangement and method using boring tool and cable locating signals
US6737867B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2001 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Sep 10, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An arrangement and an associated method are described in which a boring tool is moved through the ground within a given region along a path in which region a cable is buried. The boring tool and the cable transmit a boring tool locating signal and a cable locating signal, respectively. Intensities of the boring tool locating signal and the cable locating signal are measured along with a pitch orientation of the boring tool. Using the measured intensities and established pitch orientation, a positional relationship is determined to relative scale including at least the boring tool and the cable in the region. The positional relationship is displayed to scale in one view. The positional relationship may be determined and displayed including the forward locate point in scaled relation to the boring tool and the cable. Cable depth determination techniques are described including a two-point ground depth determination method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.