Patents in subclass Excavating/Conveyor
Parent class: Excavating
| Number | Patent title | Issue Date |
|---|---|---|
| 07150115 | All earth foundation trencher An all-earth foundation trencher has a digger body (1) pivotal selectively on a track-laying chassis (7). The digger body has an earth-mover blade (16) that is manipulatable multi-directionally on a front end. A digger boom (19) has a... |
12/19/2006 |
| 06843001 | Scraper A scraper for moving friable material. The scraper includes a frame adapted for attachment to a vehicle and an articulated blade. The blade has left and right portions mounted on the frame for pivoting about a substantially horizontal... |
01/18/2005 |
| 06501240 | Linear compressor driving device, medium and information assembly A linear compressor driving device for linear compressor driving a piston in a cylinder by means of a linear motor to generate a compressed gas, has an inverter for outputting an alternating current to be supplied to the linear motor;... |
12/31/2002 |
| 06336684 | Control system for overburden discharge An overburden removal system is provided which includes a bucketwheel (3) which cuts overburden from a wall (5) of the mine and discharges the overburden via a discharge boom (7) onto a hopper car (11) which travels on rails (9). The... |
01/08/2002 |
| 06185847 | Continuous shovel The present invention discloses a method and apparatus for excavating material from a mining or reclamation operation, and is generally considered useful in open cast mining operations. The apparatus has a first conveyor and a second... |
02/13/2001 |
| 6014825 | Bucket wheel excavator A bucket wheel excavator has a scraper blade mounted on the bogie and whose height is independent of the raising and lowering of the bucket wheel to maintain a level track for the crawler bogie. The scraper blade can be tilted about a... |
01/18/2000 |
| 5857274 | Method of operating a bucket wheel excavator A bucket-wheel excavator has its bucket-wheel conveyor stopped when a truck is fully loaded so that a new truck can be brought into position, the continuously-operating bucket wheel filling the bucket-wheel chute with a first store of the... |
01/12/1999 |
| 5730501 | Continuous track mounted, self propelled open cast mining apparatus The open cast mining apparatus comprises two sets of running gear between which a cutting drum is provided on a chassis. The conveyor tract is formed by an axial discharge conveyor inside the cutting drum, a vertical worm conveyor and a... |
03/24/1998 |