Abstract: A pump for transporting particulate material that includes a first conveyor and a second conveyor together defining a passage, wherein a working surface of each of the conveyors are canted with respect to each other. The pump includes an inlet for introducing the particulate material into the passage and an outlet for expelling the particulate material from the passage, wherein the outlet is positioned out of line with the inlet.

Abstract: A pump for transporting particulate material that includes a first conveyor and a second conveyor together defining a passage, wherein a working surface of each of the conveyors are canted with respect to each other. The pump includes an inlet for introducing the particulate material into the passage and an outlet for expelling the particulate material from the passage, wherein the outlet is positioned out of line with the inlet.

Abstract: A material transporting system comprises a material transporting apparatus (100) including a material transporting apparatus hopper structure (200, 202), which comprises at least one rotary transporting apparatus; a stationary hub structure (900) constraining and assisting the at least one rotary transporting apparatus; an outlet duct configuration (700) configured to permit material to exit therefrom and comprising at least one diverging portion (702, 702?); an outlet abutment configuration (800) configured to direct material to the outlet duct configuration; an outlet valve assembly from the material transporting system venting the material transporting system; and a moving wall configuration in the material transporting apparatus capable of assisting the material transporting apparatus in transporting material in the material transporting system.

Abstract: A material transporting system comprises a material transporting apparatus (100) including a material transporting apparatus hopper structure (200, 202), which comprises at least one rotary transporting apparatus; a stationary hub structure (900) constraining and assisting the at least one rotary transporting apparatus; an outlet duct configuration (700) configured to permit material to exit therefrom and comprising at least one diverging portion (702, 702?); an outlet abutment configuration (800) configured to direct material to the outlet duct configuration; an outlet valve assembly from the material transporting system venting the material transporting system; and a moving wall configuration in the material transporting apparatus capable of assisting the material transporting apparatus in transporting material in the material transporting system.

Abstract: An improved hopper includes a pair of opposed live walls and a pair of opposed fixed walls, wherein at least one live wall is moveable relative to at least one other wall. The hopper is suitable for controlling the flow of particulate material of the type which has a tendency to bridge during transportation. A device for imparting vibration is coupled to at least one of the live walls. The live walls are separated from the fixed walls by seams such that the live walls are free to move relative to the fixed walls. By the action of the vibration device, the live walls are moveable relative to each other and to the fixed walls to inhibit the formation of particle bridges and, thus, provide a significant improvement in the capability of controlling the flow of particulate material.

Abstract: A single-pass roof bolt adapted to drill and to be secured in a bore in the roof of a mine for supporting the roof comprising a tubular body open at one end thereof, constituting the inner end of the bolt, and a cutting structure at the opposite end of the tubular body, constituting the outer end of the bolt. The bolt is adapted to drill a bore in the mine roof upon rotation of the bolt, with the cutting structure being wider than the tubular body for forming an annulus between the tubular body and the wall of the bore. The bolt has a head at its inner end to facilitate rotation of the bolt, and to bear against the mine proof in pressurized relationship.