Position and orientation locator/monitor
US5155442A · kind A · utility
123Cited by
5References
6Claims
0Family size
Inventor
Key dates
| Filing date | Mar 1, 1991 |
| Grant date | Oct 13, 1992 |
| Priority date | — |
| Expiry date | Mar 1, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/15
- 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.