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| Number | Title | Issue Date |
| 8112912 | Dump block with improved assembly features A dump block with a self-adjusting bearing includes two side sections, a sheave with a peripheral groove and a central bore, a bearing assembly, and a sheave pin. The sheave pin has a first end with a shoulder, a second end with a threaded portion, and a bearing sup... | 02/14/2012 |
| 7415783 | Boom support strand oscillation dampening mechanism An apparatus including a main housing including a generally horizontal platform, a boom extending from the platform, a bucket suspended from the boom, and a mast extending from the platform. The apparatus further includes a boom support strand extending between and ... | 08/26/2008 |
| 7331621 | Dump box A dump box including a pair of opposing side walls joined to a bottom and a back; and a cable, including front ties, at least one front connector, at least one front cable, each front tie being sized and configured to selectively secure to the connector, the front c... | 02/19/2008 |
| 7302739 | Device for fastening emergency equipment to a ship's deck A device is for fastening emergency equipment to a ship's deck or to a structure on a ship's deck. The device includes a first and a second fastening facility for, respectively, a first external and a second external fastening device having, respectively, a first an... | 12/04/2007 |
| 7111417 | Earth handling apparatus operable by an all terrain vehicle (ATV) An earth handling apparatus operable in a trailered manner behind an ATV includes a rolling framework containing a tiltable accumulating bowl having a pivotable front door. Winch devices operated by the electrical system of the ATV control the tilting of the framewo... | 09/26/2006 |
| 7093876 | Tailgate lift-assist assembly A tailgate lift-assist assembly is provided for a tailgate mounted to a vehicle body. The tailgate is movable between a closed position and an open position. The tailgate lift-assist assembly includes a spring having a first spring end and a second spring end. The s... | 08/22/2006 |
| 6588126 | 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 the hoist ropes ... | 07/08/2003 |
| 6581995 | Hoist arrangement for a dragline rigging The invention relates to a hoist arrangement (10) for a dragline rigging. The hoist arrangement includes a triangular framework comprising a hollow fibreglass spreader bar (14) and two fibreglass ties (12) which are attachable to the spreader bar. The fib... | 06/24/2003 |
| 6272775 | Rear dumping dragline bucket and rigging system An excavator dragline bucket is supported by a hoist line from a dragline power unit, and pivots about the connection of the hoist line to the bucket. The bucket is designed to dump toward the rear, and has a gate that is latched in position during the lo... | 08/14/2001 |
| 5992061 | Dragline bucket dump compensator A hoisting assembly for use with a dragline bucket that includes a compensator for generally stabilizing the attitude of the bucket. The compensator is operably coupled to the lift, hoist and dump lines. The connector for the lift line(s) defines a fulcru... | 11/30/1999 |
| 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 |
| 5657559 | Rigging assembly for an excavating bucket A rigging assembly for a dragline bucket has first and second hoist chains coupled to the bucket and first and second pickup links above the hoist chains. The chains extend along first and second axes, respectively, and define a fleet angle between them. ... | 08/19/1997 |
| 5636460 | Dragline with cantilevered side-access dump block A dragline comprising a main housing, a bucket hoist mechanism mounted on the housing, a bucket drag mechanism mounted on the main housing, a moving mechanism for moving the main housing over the ground, a boom which is supported on the main housing and w... | 06/10/1997 |
| 5619810 | Pin retention device and related method for retaining a trunnion link pin in a digging implement Disclosed is a digging implement (such as a dragline bucket) having a trunnion link connected to the implement by a pin secured in place by a retention device. Such device is coupled to the pin along the pin longitudinal axis. The pin has a first portion ... | 04/15/1997 |
| 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 |
| 5515624 | Excavating hoe or bucket An excavating hoe or bucket includes a hoe or bucket body which is movable across an excavation area, and a structure for providing the hoe body or bucket body with a variable load capacity. The variable load capacity may be provided by a network of flexi... | 05/14/1996 |
| 5428909 | Dump bucket arch A bucket arch, used on dragline buckets, has a pair of side sections and an arch center section disposed therebetween. At least one lug is attached to the arch center section and exerts a force on the center section along a force axis. In the improvement,... | 07/04/1995 |
| 5400530 | Dragline excavator bucket and rigging A dragline excavating bucket is constructed to be supported through a minimum number of support chains and control cables, and made to provide for rapid digging and distribution of overburden removed by dumping the bucket rearwardly over a rear wall of th... | 03/28/1995 |
| 5398433 | Bucket dump block A bucket dump block, used on dragline buckets, has side frames and a rotatable rope-guiding sheave. In the improvement, each side frame has a separate ring-like support section extending toward the other side frame and abutting the support section of such... | 03/21/1995 |
| 5367798 | Connector pin assembly for bucket rigging A dragline bucket rigging includes at least one pair of components removably secured together by a connector pin assembly including a U-shaped spring retainer clip. The clip removably snap-fits beneath a protective cap secured to the outside face of one o... | 11/29/1994 |
| 5349766 | Boom support pendant pin retainer A boom support pendant pin retainer for an earth working machine having a retainer plate and a projection for preventing rotational, axial and coaxial movement of the pendant pin. The projection is constructed and arranged to mesh in the void between the ... | 09/27/1994 |
| 5345702 | Removable pipe arch for dragline buckets A dragline bucket having a back wall, opposite side walls, a bottom, an open front, and a removable pipe arch assembly for connecting the front upper corners of the side walls of the bucket together, the removable pipe arch assembly including a saddle bra... | 09/13/1994 |
| 5343641 | Spreader bar for strip mine rigging apparatus A spreader bar assembly has a middle spreader bar having a nose-shaped link at opposite ends to which is pivoted pivotal end pieces which comprise about half of the structural weight. The pivotal end pieces have a rounded tip portion which is pivotally co... | 09/06/1994 |
| 5321902 | Dump block for strip mine rigging apparatus The present dump block (100) comprises an internal plate (106) attached to an external plate (108) with a rotatably mounted sheave (110) therebetween. The external plate (108) presents a smooth convex surface. Bearings (126) are mounted between the sheave... | 06/21/1994 |
| 4864747 | Support assembly for a dragline bucket A support assembly for a drag bucket includes lift lines and pull lines, each secured to a respective link plate pivotably secured to opposite sides of the bucket. Stops on the bucket side walls limit pivoting of the plates, whereby the bucket can selecti... | 09/12/1989 |
| 4791738 | Dragline bucket The invention relates to a dragline bucket wherein the center of gravity is along a line making an angle of at least 90° with a line from the tooth tip to the horizontal pivot axis of the dragline hitch. Also disclosed is a movable hitch.... | 12/20/1988 |
| 4689904 | Rub link assembly for dragline bucket A rub link assembly for replacement of a link or links of the lower hoist chain on a dragline bucket including a rotating collar affixed to a plastic bushing which allows rolling as contrasted to scraping action against the bucket sides.... | 09/01/1987 |
