Patents in subclass Excavating/Cable-Operated (E.G., Dragline)
Parent class: Excavating
| Number | Patent title | Issue Date |
|---|---|---|
| 06826466 | Dragline dump position control A method of controlling the dump position of a dragline (1) of the type where inclination of the bucket (4) is controlled by differential control of the front hoist rope (7) and the rear hoist rope (8), in order to control dumping too... |
11/30/2004 |
| 06588126 | Drag link bucket controls A dragline excavation bucket control system including a pair of hoist ropes and a drag rope, the hoist ropes being coupled adjacent opposite ends of the bucket. The hoist ropes are supported on spaced sheaves on an excavation boom whereby... |
07/08/2003 |
| 6119375 | Containment area process Effective techniques and equipment are described for maintaining and improving dredge disposal sites. In one aspect, the use of winching equipment is described to move a digging vehicle within a containment area for effective creation of... |
09/19/2000 |
| 6038795 | Dredger with lockable rear door A dredge having substantially a box-like shape, with an open front face and an open rear face, the rear face having a door hinged thereto and a lock member to hold the door in a locked position. An A-shaped frame member is pivotally... |
03/21/2000 |
| 5752334 | Dumping system for a dragline bucket A draglined bucket having first and second contoured dumping rails respectively supported on first and second spaced apart opposite sidewalls and a rear wall. Each dumping rail extends from above the sidewall on which it is supported to... |
05/19/1998 |
| 5642577 | Dragline with high headroom between upper and lower structures Heavy machinery comprising a lower support structure having an upper surface, and an upper structure having a generally horizontal lower surface facing the upper surface of the lower structure, the upper structure being supported above... |
07/01/1997 |
| 5636903 | Mining system for removing overburden A mining system for removing overburden from a valuable mineral or coal deposit from a pit (9) is disclosed. The mining system comprises a dragline (600) for removing overburden from a high wall side (3) of the pit (9) to produce a... |
06/10/1997 |
| 5603174 | Dragline including improved walking mechanism A dragline comprising a main housing, a bucket hoist mechanism mounted on the housing, a bucket drag mechanism mounted on the main housing, a walking mechanism for moving the main housing over the ground, the walking mechanism including a... |
02/18/1997 |
| 5600905 | Dragline with improved pinion shaft mounting A dragline comprising a main housing, and a moving mechanism for moving the main housing over the ground, the moving mechanism including a drive mechanism mounted on the main housing, an output shaft which extends along an axis and which... |
02/11/1997 |