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

Claim 15:
16. 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 drum comprising:
a first outer portion;
a second outer portion;
a central portion, the center plane extending through the central portion;
a first intermediary portion disposed between the first outer portion and the central portion; and
a second intermediary portion disposed between the second outer portion and the central portion;

a plurality of centering paddles connected to the first outer portion of the drum, the centering paddles each having a material-engaging surface that contacts material as the drum rotates, the material-engaging surface extending between a leading edge and a trailing edge of the centering paddle, the material-engaging surface angling toward the central plane from the leading edge to the trailing edge;
a plurality of centering paddles connected to the second outer portion of the drum, the centering paddles each having a material-engaging surface that contacts material as the drum rotates, the material-engaging surface extending between a leading edge and a trailing edge of the centering paddle, the material-engaging surface angling toward the central plane from the leading edge to the trailing edge;
a plurality of dispersal paddles connected to the first intermediary portion, the dispersal paddles each have a material-engaging surface that contacts material as the drum rotates, the material-engaging surface being perpendicular to the central plane;
a plurality of dispersal paddles connected to the second intermediary portion, the dispersal paddles each have a material-engaging surface that contacts material as the drum rotates, the material-engaging surface being perpendicular to the central plane; and
a plurality of spreading paddles connected to the center portion of the drum, the spreading paddles (1) being parallel to the central plane or (2) each having a material-engaging surface that contacts material as the drum rotates, the material-engaging surface extending between a leading edge and a trailing edge of the spreading paddle, the material-engaging surface angling away from the central plane from the leading edge to the trailing edge.