Device and method for locating an inground object and a housing forming part of said device
US5633589A · kind A · utility
147Cited by
3References
18Claims
0Family size
Inventor
Key dates
| Filing date | May 16, 1995 |
| Grant date | May 27, 1997 |
| Priority date | — |
| Expiry date | May 16, 2015 |
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.