Patent ID: 8191811
Filing Date: 2012-06-05
Classification: B02C,E03C

Abstract:
1. A pulverizing screw assembly for pulverizing food waste input into a pulverizing casing wherein the food waste is input and then pulverized, agitated and dried, the pulverizing screw comprising: a rotating shaft which rotates inside the pulverizing casing; and at least one drive blade extending from the rotating shaft in a spiral shape, wherein the drive blade rotates in the pulverizing casing in such a manner as to maintain a predetermined distance between the drive blade and an inner surface of the pulverizing casing to prevent the drive blade from being impeded by the inner surface of the pulverizing casing, and the drive blade extends from a circumferential outer surface of a first end of the rotating shaft in a spiral shape surrounding the rotating shaft in a clockwise or counterclockwise direction and is connected to a circumferential outer surface of a second end of the rotating shaft, and wherein a space is defined between the drive blade and the rotating shaft in a radial direction.