20100303609 | SUBSTANCE TRANSFER DEVICE - A material delivery apparatus is provided which is capable of delivering a material in a large amount per unit area per unit time without damaging the material, and capable of discharging the delivered material powerfully from the outlet port. A rotary body 30 rotates on the rotation axis, a line 36 (imaginary line) connecting the center point of the round top face 32 and the center point of the round bottom face 34. The rotary body 30 has on the outside peripheral face 31 a spiral fin 50 which rotates together with the rotary body 30. The fin 50 extends from the top end to the rear end (end to end) of the outside peripheral face 31 of the rotary body 30. The fin 50 stretches out from the outside peripheral face 31 of the rotary body 30 close to the inside peripheral face 24 of the casing 20 to cause little leakage of the material through the clearance between the edge of the fin 50 and the inside peripheral face 24. The distance d between the confronting faces of the fin 50 is kept unchanged. | 12-02-2010 |