Information transmitting apparatus using tube body
US5675325A · kind A · utility
41Cited by
5References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 20, 1995 |
| Grant date | Oct 7, 1997 |
| Priority date | — |
| Expiry date | Oct 20, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An information transmitting apparatus using a tube includes a magnetostrictive vibrator to generate a first elastic wave depending upon underground information, a resonance tube body resonating with the elastic wave to generate a second elastic wave having a natural frequency, and a drill string to propagate the second elastic wave, thereby permitting a long transmission distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.