Earth-moving apparatus
US3982688A · kind A · utility
Inventor
Key dates
| Filing date | Nov 25, 1974 |
| Grant date | Sep 28, 1976 |
| Priority date | — |
| Expiry date | Nov 25, 1994 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/20
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A self-propelled machine for cutting and moving earth as from a mine face in a shaft or earth from a bank or other natural terrain and having a prime mover vehicle for advancing pairs of conveyor chain sprockets that support and power chain-mounted cutters and scoops. Preferably a separate power source other than the mover vehicle drives the conveyor chain sprockets. Belt conveyors receive earth from the scoops and discharge it away from the machine. The conveyor chains not only are powered separately from the vehicle but travel in a path across the advance of the vehicle. Cutter blades on the forward chain each have a plurality of replaceable teeth on the blade outboard of the foremost chain of the pair. The vehicle or prime mover may be a crawler tractor or other powered apparatus to which the earth-moving apparatus is attached for spatial adjustment with respect to the work.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.