Abstract: Powder-layer three-dimensional printer recoaters, which are adapted for use with fine powders, are disclosed. The recoaters comprise a controllably vibrated traveling powder dispenser having a hopper section adapted to contain the build powder, an opening through which the powder can be controllably discharged laterally into a chamber which is located beside the opening and which has a mesh covering at least a portion of its bottom. The recoaters also comprise a vibrator that is operably connected to the traveling powder dispenser and is adapted to selectively cause the powder to flow from the hopper through the opening and be discharged through the mesh. In some embodiments, the recoaters also comprise a smoothing device which is adapted to smoothen the powder dispensed through the mesh. In some embodiments the smoothing device is adapted to compact the density of the dispensed powder level a selectable amount. Also disclosed are powder-layer three-dimensional printers having such recoaters.

Abstract: A food processor feed tube assembly includes a first feed tube extension and a second feed tube extension telescopically and slidably received in the first feed tube extension. The second feed tube extension is configured to be movable from a retracted position in which the second feed tube extension is substantially entirely nested within the first feed tube extension, and an extended position in which the second feed tube extension is extended from the first feed tube extension.

Abstract: A non-stick liner for facilitating the transport of objects along a stationary transport substrate comprises a fabric coated with PTFE, or a laminate of multiple layers of fabric coated with PTFE. The laminate may include a conductive material to dissipate electrical charge buildup. The liner may be selectively applied to identified portions of a stationary transport substrate where buildup, blocking, bridging, or sticking of objects has or is likely to occur. The liner may be mechanically fastened or adhesively bonded to the stationary transport substrate.