Shaker assemblies for dewatering are disclosed. The shaker assemblies may include a clamping system for securing a vibratory screen of the shaker assembly.

Shaker assemblies for dewatering are disclosed. The shaker assemblies may include a clamping system for securing a vibratory screen of the shaker assembly.

A screening system (10) comprising at least one first substantially annular screen support (11) and a second substantially annular screen support (12); at least one pressure rod (14), which braces the screen supports (11, 12) with each other in such a manner that a compressive stress is produced between the screen supports (11, 12); at least one substantially cylindrical outer screen surface (13), which is clamped between the screen supports (11, 12); and at least one resonator (15) for the introduction of ultrasonic vibrations directly into the screen surface (13). The resonator (15) may be fastened to the screen surface (13) and essentially runs from the first screen support (11) to the second screen support (12). An eddy-current screening machine is also disclosed.

A screening system (10) comprising at least one first substantially annular screen support (11) and a second substantially annular screen support (12); at least one pressure rod (14), which braces the screen supports (11, 12) with each other in such a manner that a compressive stress is produced between the screen supports (11, 12); at least one substantially cylindrical outer screen surface (13), which is clamped between the screen supports (11, 12); and at least one resonator (15) for the introduction of ultrasonic vibrations directly into the screen surface (13). The resonator (15) may be fastened to the screen surface (13) and essentially runs from the first screen support (11) to the second screen support (12). An eddy-current screening machine is also disclosed.

A firewood processor, comprising a saw, means for feeding wood for the saw, a splitting chute, a splitting wedge arranged to split a log, of which at least part is arranged in the splitting chute, into pieces, a pressure plate arranged to support the log, and means for moving the pressure plate and/or the splitting wedge towards each other in such a way that the log is configured to be split by said movement. In the firewood processor, the splitting wedge is arranged to split the log into an intermediate split log and at least one firewood-ready piece. The firewood processor further comprises a returning element for returning the intermediate split log back to the splitting chute for further splitting and a protector for protecting the user of the firewood processor. The firewood processor is configured to automatically return the intermediate split log, using the returning element, to the splitting chute.

A firewood processor, comprising a saw, means for feeding wood for the saw, a splitting chute, a splitting wedge arranged to split a log, of which at least part is arranged in the splitting chute, into pieces, a pressure plate arranged to support the log, and means for moving the pressure plate and/or the splitting wedge towards each other in such a way that the log is configured to be split by said movement. In the firewood processor, the splitting wedge is arranged to split the log into an intermediate split log and at least one firewood-ready piece. The firewood processor further comprises a returning element for returning the intermediate split log back to the splitting chute for further splitting and a protector for protecting the user of the firewood processor. The firewood processor is configured to automatically return the intermediate split log, using the returning element, to the splitting chute.

Aggregate material processing systems, methods, and apparatus are described. In some embodiments, one or more components have a transport configuration and an operational configuration.

Aggregate material processing systems, methods, and apparatus are described. In some embodiments, one or more components have a transport configuration and an operational configuration.

The present invention relates to powder-layer three-dimensional printers (2) having a discrete supply hopper (340) and a recoater (20). The discrete supply hopper (340) is configured to transfer a build powder to the recoater (20) in a manner that enhances the uniformity of build powder layers that are dispensed from the recoater (20). In some embodiments, at least one of the discrete supply hopper and the powder hopper of the recoater is adapted to selectively contact the other, seal against the other, and/or have one partially inserted inside the other so as to diminish or prevent powder pluming during the transfer of build powder from the discrete supply hopper to the recoater.

The present invention relates to powder-layer three-dimensional printers (2) having a discrete supply hopper (340) and a recoater (20). The discrete supply hopper (340) is configured to transfer a build powder to the recoater (20) in a manner that enhances the uniformity of build powder layers that are dispensed from the recoater (20). In some embodiments, at least one of the discrete supply hopper and the powder hopper of the recoater is adapted to selectively contact the other, seal against the other, and/or have one partially inserted inside the other so as to diminish or prevent powder pluming during the transfer of build powder from the discrete supply hopper to the recoater.