Tunneling for underground power and pipelines
US11655680B2 · kind B2 · utility
0Cited by
6References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 2021 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Sep 13, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D9/108
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tunnel boring machine including a propulsion system, an enclosure carried by the propulsion system, and a torch support structure carried by the enclosure. The torch support structure can include a primary disc mounted on a rotatable shaft carried by the enclosure, a first plurality of plasma torches mounted to the primary disc, and a power supply cable coupled to the enclosure and adapted to supply power to the boring machine from one or more power sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.