Locator device for continuously locating a dipole magnetic field transmitter and its method of operation
US5337002A · kind A · utility
238Cited by
11References
16Claims
0Family size
Inventor
Key dates
| Filing date | Oct 9, 1992 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Oct 9, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C9/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A locator/monitor for locating a boring tool and monitoring the progress of the tool for control purposes. The locator/monitor is 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.