Silo borer for taking samples of loose material or highly viscous liquid from beneath the surface of the material has an elongated pipe-type body with a closing mechanism that prevents material escaping once sampling is complete

摘要

Silo borer for taking samples of loose material or highly viscous liquid from beneath the surface of the material. The borer comprises a pipe-type elongated body with an outer helical type shell body and a longitudinal slit in the body of the hollow body. On its tip the body has an extending stirring surface. On its inner coating surface there is a radial and concentric element that covers the longitudinal slit.