Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
B65G33/00—Screw or rotary spiral conveyors
B65G33/08—Screw or rotary spiral conveyors for fluent solid materials
B65G33/12—Screw or rotary spiral conveyors for fluent solid materials with screws formed by straight tubes or drums having internal threads, or by spiral or helical tubes