Threaded truss foundations and related systems, methods, and machines
US11015635B2 · kind B2 · utility
2Cited by
35References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2019 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | May 17, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/47
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A machine for rotary driving screw anchors into underlying ground and related. The machine has a mast with a rotary driver and a mandrel driver oriented on a common axis. The mandrel driver passes a mandrel through the rotary driver and the screw anchor to allow the mandrel to be actuated ahead of the screw anchor while the rotary driver drives the screw anchor into the ground. Alternatively, the mandrel driver may also drive a hammering drill through the screw anchor to clear a path ahead of it through subsurface rocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.