.~ Flight means in conduit for lifting flowable solid material
DEFINITION
Classification: 198/716
(under subclass 618) Apparatus comprising a vertically extending conduit means which, at least through said extension, completely surrounds a conveying means comprising an elongated power transmission means and flight means attached thereto and driven thereby, whereby a flowable solid material may be elevated.
(1) Note. Included in this subclass are those patents wherein the conduit is formed by relatively movable members and including conduits formed in part by the elongated power transmission means.
