Public works machine, such as a hydraulic self-propelled articulated shovel
US4360311A · kind A · utility
Inventor
Key dates
| Filing date | Oct 22, 1979 |
| Grant date | Nov 23, 1982 |
| Priority date | — |
| Expiry date | Oct 22, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/20
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
This invention relates to a public works machine such as a self-propelled hydraulic shovel. This machine comprises a lower chassis provided toward one end with a pair of carrying wheels mounted on wheel-carrying arms that may be adjusted and raised, and toward the other end with raisable stabilizers. A superstructure is mounted on this lower chassis by a positioning ring. The superstructure carries, on the one hand, working equipment of the machine and, on the other hand, a pair of carrying wheels mounted on raisable arms. The control of the machine is effected by pivoting of the two parts about the positioning ring. This machine permits travelling on uneven ground while the machine remains level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.