Excavator-hoist construction vehicle
US4395191A · kind A · utility
Inventor
Key dates
| Filing date | Dec 11, 1980 |
| Grant date | Jul 26, 1983 |
| Priority date | — |
| Expiry date | Dec 11, 2000 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An excavator-hoist construction vehicle includes an undercarriage with a superstructure supported on it for rotation about a vertical axis. A boom is hinged to the superstructure and supports a tool for digging, lifting or the like. Two pair of supporting legs are attached to the undercarriage, one pair extending forwardly and the other rearwardly. The supporting legs are adjustably movable in the vertical and horizontal directions. Each of the ends of the supporting legs spaced outwardly from the undercarriage are arranged to support a wheel. The wheels on one pair of the supporting legs can be steered and at least one wheel on the supporting legs can be driven.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.