Projectile augmented boring system
US12049825B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 2020 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Nov 12, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D9/112
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Systems for forming or extending a tunnel or shaft within a working surface may include a ram accelerator assembly for accelerating a projectile into geologic material to weaken a region of the geologic material. A cutting tool may then be used to remove the weakened material. A collection assembly may be used to move debris away from the working surface while the projectile and cutting operations are performed to enable generally continuous use of the system. The number of projectiles that are accelerated and the rate at which projectiles are used may be controlled based on characteristics of the geologic material and the rate at which created debris may be removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.