Abstract: Systems and methods for processing earthen slurries such as slurries of earth cuttings and, in particular, systems and methods that involve two separation units for dewatering the slurry or that involve additive mixing units are disclosed. The systems and methods may include a conveyor such as a drag-slat conveyor that removes slurry from a holding tank at which the material is dumped and toward the separation units to allow the material to be continuously processed and dumped into the holding tank.

Abstract: Transfer systems for receiving and conveying material such as earthen slurries discharged from vacuum excavators are disclosed. The transfer system may include a holding tank and a conveyor such as a drag-slat conveyor that extends into the tank to remove and convey material from the tank. The transfer system includes a hatch. The hatch is moveable from a closed position in which vehicles travel over the hatch to an open position in which the holding tank is open to receive material from the vacuum excavator.

Abstract: A trencher that is convertible between first and second trenching configurations so that when the trencher is in the first trenching configuration, a trencher boom includes a first trenching portion at the distal end of the boom and a second trenching portion that extends along a longitudinal axis from the first trenching portion toward the proximal end. The first trenching portion defines a first trench width, and the second trenching portion defines a second trench width. The first trench width is larger than the second trench width. The second trenching portion has a greater length measured along the longitudinal axis as compared to the first trenching portion.

Abstract: A cutting element including an arcuate base having a first side, a second side, an outer radial surface, and an inner radial surface, the inner radial surface being configured to be mounted to a cutting drum. The cutting element also includes a plurality of tooth holders being mounted to the outer radial surface of the arcuate base, the tooth holders being configured to receive cutting teeth. Additionally, the cutting element includes a cutting tooth mounted in each tooth holder, wherein there is at least one leading tooth, and at least one trailing tooth, each of the cutting teeth being configured to cut through a dissimilar cutting plane, wherein each dissimilar cutting plane is parallel to one another.

Abstract: Transfer systems for receiving and conveying material such as earthen slurries discharged from vacuum excavators are disclosed. The transfer system may include a holding tank and a conveyor such as a drag-slat conveyor that extends into the tank to remove and convey material from the tank. The transfer system includes a hatch. The hatch is moveable from a closed position in which vehicles travel over the hatch to an open position in which the holding tank is open to receive material from the vacuum excavator.

Abstract: Systems and methods for processing earthen slurries such as slurries of earth cuttings and, in particular, systems and methods that involve two separation units for dewatering the slurry or that involve additive mixing units are disclosed. The systems and methods may include a conveyor such as a drag-slat conveyor that removes slurry from a holding tank at which the material is dumped and toward the separation units to allow the material to be continuously processed and dumped into the holding tank.

Abstract: A cutting element including an arcuate base having a first side, a second side, an outer radial surface, and an inner radial surface, the inner radial surface being configured to be mounted to a cutting drum. The cutting element also includes a plurality of tooth holders being mounted to the outer radial surface of the arcuate base, the tooth holders being configured to receive cutting teeth. Additionally, the cutting element includes a cutting tooth mounted in each tooth holder, wherein there is at least one leading tooth, and at least one trailing tooth, each of the cutting teeth being configured to cut through a dissimilar cutting plane, wherein each dissimilar cutting plane is parallel to one another.

Abstract: A protective wear sleeve for a cutting tool assembly that includes a solid body that has a shaft portion, a radial collar portion, and a central bore that defines a central axis. The shaft has a forward end and a rearward end, wherein the radial collar is integral with the forward end. The radial collar has a ring support surface that faces at least partially in an outward radial direction. The forward end of the shaft and the radial collar together define a tooth support surface that faces in a forward direction and has an outer diameter. At least one wear ring is disposed on the ring support surface and extends around the radial collar. The at least one wear ring has a hardness greater than that of the radial collar and has an outer diameter greater than that of the outer diameter of the tooth support surface.

Abstract: A trencher (10) is described that is convertible between first and second trenching configurations. When the trencher (10) is in the first trenching configuration, a trencher boom (20) includes a first trenching portion at the distal end (24) of the boom (20) and a second trenching portion that extends along a longitudinal axis from the first trenching portion toward the proximal end (22). The first trenching portion defines a first trench width, and the second trenching portion defines a second trench width. The first trench width is larger than the second trench width. The second trenching portion has a greater length measured along the longitudinal axis as compared to the first trenching portion.