Underground locating using a locating signal transmitter configured with a single antenna
US6232780A · kind A · utility
39Cited by
21References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 3, 2000 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Mar 3, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C9/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a locator/monitor capable of locating a boring tool and monitoring the progress of the tool for control purposes. The locator/monitor may be used in expedited locating methodology and straightforward calibration techniques of the present invention. A durable and cost effective pitch sensor is also provided by the present invention. In addition, the present invention provides a slotted transmitter housing formed of an electrically conductive material, where the magnetic field generated by the transmitter is capable of penetrating to the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.