Patent ID: 11937550
Assignee: VERMEER MANUFACTURING COMPANY
Field: Other special machines (Mechanical engineering)
Classification: CPC A | IPC A

Claim 18:
19. A drum assembly for turning material, the drum assembly comprising:
a drum including a first end, a second end, a rotational axis extending through the first end and the second end about which the drum rotates, and a central plane perpendicular to the rotational axis, the central plane dividing the drum assembly into a first side and a second side;
a plurality of centering paddles connected to the drum and configured to move material toward the central plane;
a plurality of dispersal paddles connected to the drum and configured to move material away from the drum in a direction generally perpendicular to the rotational axis; and
a plurality of spreading paddles connected to the drum and configured to move material away from the central plane, wherein the centering paddles, dispersal paddles and spreading paddles are configured to form a first helix on the first side of the drum and to form a second helix on the second side of the drum.