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| Number | Title | Issue Date |
| 7721473 | Dragline excavator bucket A bucket for a dragline has a pivoted mounting by having two spaced pivotal arms, typically of arcuate or cranked form, pivotally connected to the outside of a rear wall of the bucket about pivot axes extending transverse to the bucket and below the upper rim of the... | 05/25/2010 |
| 7685749 | Soil stripping device The invention relates to a soil stripping device, in particular a trench wall grab, comprising a base body, which can be connected to a carrier implement, a work unit, on which soil working tools are arranged and which is supported on the base body in a rotatable ma... | 03/30/2010 |
| 7367143 | Cutter and method for working the soil A cutter for working the soil includes a cutting frame, at least two cutting wheels that are supported on the cutting frame in a rotatably drivable manner about parallel axes of rotation, and an adjusting device, The adjusting device functions to adjust the center d... | 05/06/2008 |
| 7360327 | Material moving pusher/bucket A pusher/bucket has back plate with wings pivotably mounted at either end, and a drop blade pivotably mounted thereto. The drop blade can be secured in a raised position where it is superimposed over the back plate; when in the raised position, the wings can be posi... | 04/22/2008 |
| 7322133 | Multi-shank ripper A multi-shank ripper excavation tool has a body mounted from an arm, e.g. a dipper arm or a boom arm, and at least first and second shanks mounted to the body. Each shank is perpendicular to an axis of rotation of the tool, and each the shank includes a ripper tooth... | 01/29/2008 |
| 7207162 | Chin chain A chin chain for bits/bridles used in equestrian sports (e.g. curb bits) has a first chain element and a second chain element. The first element has members formed of loops that are twisted in one direction, and the second element has members formed of loops that ar... | 04/24/2007 |
| 7152349 | Dragline bucket rigging and control apparatus A large electric dragline having a housing (35) and boom (37) is provided with spaced apart in-line sheaves (34) and (36) at boom point to separate hoist ropes (31) and (32) which are led to the front and rear of bucket (... | 12/26/2006 |
| 7144183 | Lock with internal retainer A locking assembly has two members which are moveable into coupling engagement with one another. The two members have lock engaging walls, and one of the members has an opening between the lock engaging walls for receiving a lock. The lock comprises a lock body and ... | 12/05/2006 |
| 7121023 | Excavating wear member A rotatable connector pin assembly is disposed within an opening in an adapter nose, with opposite ends of the pin portion of the assembly extending outwardly beyond opposite sides of the adapter nose in axially fixed orientations relative thereto, and is used to ca... | 10/17/2006 |
| 7114271 | Cutting tool for digging trenches, and enabling the cutter head to be changed quickly The invention relates to a cutting tool for digging vertical trenches, the tool comprising: a jib (B); a cutter structure (34; C) suspended from the jib via a cable; a plurality of cutter me... | 10/03/2006 |
| 7069676 | Excavating tooth point/adapter assembly methods A rotatable connector pin assembly is disposed within an opening in an adapter nose, with opposite ends of the pin portion of the assembly extending outwardly beyond opposite sides of the adapter nose in axially fixed orientations relative thereto, and is used to ca... | 07/04/2006 |
| 7032334 | System and method for coupling excavation equipment components In accordance with a particular embodiment of the present invention, a system for coupling excavation equipment components includes a pin assembly configured to couple a first tool body to a second tool body. The pin assembly is configured to be received at least pa... | 04/25/2006 |
| 6976325 | Excavating tooth assembly with rotatable connector pin structure A connector pin assembly is disposed within an opening in an adapter nose, with opposite ends of a rotatable pin portion of the assembly extending outwardly beyond opposite sides of the adapter nose in axially fixed orientations relative thereto, and is used to capt... | 12/20/2005 |
| 6834449 | Excavator bucket A dragline bucket comprises a floor, opposed side walls and a rear wall; a front lip on the floor having adaptors to releasably secure cutting teeth thereto; opposed cheek plates adjacent respective front portions of the side walls; and, hoist rope attachment member... | 12/28/2004 |
| 6705031 | Dragline apparatus and bucket A dragline apparatus has an independently controlled front hoist line and rear hoist line. The front hoist line is connected to the forward end of the bucket, and the rear hoist line is connected to the rearward end. ... | 03/16/2004 |
| 6550163 | Dragline apparatus and bucket A dragline apparatus has an independently controlled front hoist line and rear hoist line. The front hoist line is connected to the forward end of the bucket, and the rear hoist line is connected to the rearward end.... | 04/22/2003 |
| 6540925 | Oil recovery method and oil recovery apparatus An apparatus for recovering oil has a bucket for skimming and collecting water and oil floating on the surface of the water. The bucket has a base plate having apertures for draining water collected by the bucket. The apertures have a preselected diameter... | 04/01/2003 |
| 6467202 | Dynamically active dipper door mechanism A dipper door pivotally mounted to a dipper is controlled as it pivots between open and closed positions. In one embodiment, the door is controlled by a brake pivotally linking the door to the dipper. In another embodiment, the door is pivotally mounted t... | 10/22/2002 |
| 6446366 | Dragline apparatus and bucket A dragline apparatus has an independently controlled front hoist line and rear hoist line. The front hoist line is connected to the forward end of the bucket, and the rear hoist line is connected to the rearward end.... | 09/10/2002 |
| 6434862 | Skewed dipper A power shovel including a frame, a boom mounted on the frame, a crowd drive mechanism mounted on the boom, and a dipper handle supported by the crowd mechanism. A dipper is connected to the handle for movement therewith, the dipper defining material rece... | 08/20/2002 |
| 6237260 | Dragline bucket with quick change basket feature A dragline bucket includes a forward ring that is releasably connected to a basket. The forward ring includes an arch, a first cheek plate, a second cheek plate, and a bottom wall carrying excavation teeth. The basket includes first and second sidewalls a... | 05/29/2001 |
| 6209234 | Dragline rigging A rigging system for dragline buckets includes a unitary adaptor having a hoist equalizer aperture at an upper end thereof and bucket hoist chain connectors extending from opposite sides adjacent a lower end of the adaptor. A connector for a dump block ex... | 04/03/2001 |
| 6186735 | Loader bucket construction for robot assembly A bucket for a front end loader is formed with a minimum number of parts so that it can easily be assembled held in fixtures and welded with robot welders. The bucket includes a unitary panel that forms a bottom wall and a rear wall, with a curved junctio... | 02/13/2001 |
| 6139212 | Coupler for excavating machines and the like having fixed and moveable jaws A coupler for coupling an implement having a pair of spaced connecting pins to a handle and a pivot link of a groundworking machine.... | 10/31/2000 |
| 6076290 | Direction control system for a slurry wall device On a slurry wall device having a cable mounting, on which is attached a supporting cable for guiding the slurry wall device, is provided an adjusting device, with which a supporting cable contact point can be laterally displaced, so that the slurry wall d... | 06/20/2000 |
| 5970636 | Dump block An integral dump block for use in a dragline bucket that comprises a sheave to movably support a dump line, a central pin rotatably supporting the sheave, and a housing to couple the pin to lift lines. Bearings are disposed within the sheave and each side... | 10/26/1999 |
| 5839213 | Dipper door actuated lube pumping system A mining shovel (10) is provided with an automatic lubricant system controlled by movement of a portion for the mining shovel (10). The automatic lubrication system includes an actuator (51, 151, 251, 351) and a lubrication supply subsystem (53, 153, 253,... | 11/24/1998 |
| 5832638 | Low draft high yield bucket system for draglines A low draft, high yield, dragline bucket system that has about half the weight of current art. It has a low wide configuration with special highly efficient ground engaging, loading and dumping qualities. The strength, cube accomplishment, simplicity, and... | 11/10/1998 |
| 5575092 | Dragline bucket The dragline bucket has a basket (12) with an open from end and an open top defined by bottom, side and rear walls (14, 16, 18). Cheek plate structures (44) of fabricated steel plate construction are carried by the side walls at the front end of the baske... | 11/19/1996 |
| 5499463 | Power shovel with variable pitch braces A power shovel comprising a frame, a dipper handle mounted on the frame for pivotal movement relative thereto about a generally horizontal dipper handle axis such that the dipper handle has a variable pivotal position relative to the frame, a dipper conne... | 03/19/1996 |
| 5469647 | Power shovel A power shovel comprising a frame, a winch mounted on the frame, a boom having a lower end mounted on the frame and having an upper end, a sheave pivotally mounted on the boom adjacent the upper end of the boom, a dipper handle mounted on the boom for piv... | 11/28/1995 |
| 5435084 | Apparatus and method for attaching a digging tooth tip A digging tooth assembly has a base nose, a replaceable tooth tip mounted on the base nose and a pin securing the tip to the nose. The pin includes a locking head eccentric to the pin and a pad-like resilient member is placed between the head and the toot... | 07/25/1995 |
| 5307571 | High production system bucket A high production dragline bucket which has a low profile in the back wall as well as fewer components than those commonly in use. The bucket is not only lower in production costs, but has higher operating efficiencies. It is adaptable to both single or d... | 05/03/1994 |
| 5251389 | Brace for maintaining relative arm-dipper angle The invention is an improvement in a machine such as a surface mining "shovel" having an arm, a bucket-like digging dipper and a brace. The latter is used to maintain a selected "rake angle" between the arm and the dipper. The brace has first and second e... | 10/12/1993 |
| 5250199 | Sludge scraper apparatus A sludge scraper apparatus for scraping a sludge sediment from an earthen bottom of a sludge reservoir, is described. The scraper apparatus is comprised of a main frame that provides for mounting a pair of skids, a scraper blade and a pair of wheels mount... | 10/05/1993 |
| 5241765 | Lock assembly for wearable structure A lock assembly for a surface subject to abrasive wear including a base element and a wear element coupled either by conforming T-shaped elements or dovetails and which includes a lock resiliently urged against an integral keeper in the base or wear eleme... | 09/07/1993 |
| 5084990 | Dragline bucket and method of operating the same A dragline bucket and method of operating a dragline bucket wherein a reverse V configuration of teeth is employed to eliminate slewing, i.e., sideways movement when encountering an off-center obstacle.... | 02/04/1992 |
| 4944102 | High production system bucket A high production dragline bucket which has a low profile in the back wall as well as fewer components than those commonly in use. The bucket is not only lower in production costs, but has higher operating efficiencies. It is adaptable to both single or d... | 07/31/1990 |
| 4716666 | Wear runner for excavating bucket A wear runner for an excavating bucket which includes a plurality of base elements secured to the bucket in end-to-end relation, a runner element for each base element removably mounted thereunder by means of a rearwardly divergent dovetail.... | 01/05/1988 |
| 4329794 | Ripping attachment for dragline The invention concerns an earth ripping attachment which can be mounted on the bucket of a dragline and used to break through cap rock, frozen earth, or other difficult to dig overburden. The device has a base adapted to fit against the underside of the b... | 05/18/1982 |
