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| Number | Title | Issue Date |
| 6932286 | Combination drop and broadcast spreader A spreader for distributing a material on a surface. In certain embodiments, the spreader may include a disk rotatable about an axis and having an upper surface extending substantially radially from the axis. A driver may operably connect to the disk to provide rota... | 08/23/2005 |
| 6843001 | 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 axis transverse to the articula... | 01/18/2005 |
| 6336684 | 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 hopper car (11) deliv... | 01/08/2002 |
| 6185847 | 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 conveyor attached to ... | 02/13/2001 |
| 5564205 | Excavating machine with stowable discharge conveyor An excavating machine includes a discharge conveyor which is movable (1) from an operative position in which an inlet end thereof is located directly under the outlet end of an associated loading conveyor (2) to a transport position in which the discharge... | 10/15/1996 |
| 5511326 | Rotating disk-type ditcher A method and apparatus in which a disk-type ditcher adaptable to being drawn by a tractor can dig ditches under control of a laser system by which a desired ditch grade can be selected. The ditcher incorporates a disk rotatable in a generally vertical pla... | 04/30/1996 |
| 5214866 | Continual digging, transport and loading accessory for earth or material moving equipment A continual digging, transporting, and loading accessory can handle material. The accessory is adapted for exchangeable attachment on earth or material moving equipment. The accessory includes a digger outwardly mounted on the earth or material moving equ... | 06/01/1993 |
| 4958449 | Apparatus for covering drilling mud liquids in a surface depression A method and apparatus for covering drilling mud returns in a drilling mud pit. A soil-projecting apparatus which is attachable to the rear of a conventional farm tractor comprises a plurality of scoop-like members connected to a drive shaft member which ... | 09/25/1990 |
| 4955151 | Bucket wheel with overhead discharge An excavating bucket wheel has a plurality of radially outwardly open bucket chambers disposed in a circular array. During rotation of the bucket wheel each chamber cyclically assumes a material receiving position and a material dumping position. Each buc... | 09/11/1990 |
| 4193217 | Pivotable bucket with a rotatable earth moving mechanism A pivotable bucket comprising a built-in housing containing a rotatable earth moving mechanism secured to an elbow-type power boom of an excavator or vehicle having hydraulic power thereon. The earth moving mechanism is adapted to dig earth both in a hori... | 03/18/1980 |
| 4161072 | Ditch digger with adjustable side wings A ditch digger adapted to dig ditches of different cross-sections; such as of different depths and, in particular, with sides at any selected transverse slope within a predetermined range. The ditch digger is characterized by angularly adjustable side win... | 07/17/1979 |
