Automated excavation machine
US7695071B2 · kind B2 · utility
69Cited by
142References
73Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2003 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Dec 14, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/302
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention is directed to an excavator that is operable in manual and automatic modes and uses state machines to effect unit operations, rotationally offset swing actuators to rotate boom and cutter head, a fail safe hydraulic system to maintain gripper pressure in the event of a malfunction of the hydraulic system, differing position and pressure control functions in the hydraulic actuators, a kinematic module to effect pitch and roll adjustments, a cutting face profile generator to generate a profile of the excavation face, and an optimization module to realize a high degree of optimization of excavator operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.