US 4,059,508 AGranted

Conveyor for granular material

OwnerJorma Metsa-Ketelainventor

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Abstract

A conveyor for granular material includes an elongated hollow channel covered by a suitable cover and having a hollow interior along which the granular material is to be conveyed. A rotary screw extends along the hollow interior of the channel for conveying the granular material therein, this rotary screw including an elongated shaft and a screw carried thereby. Between the opposed ends of the elongated shaft there is situated within the channel at least on bearing which supports the shaft for rotary movement, and a transverse wall extends across the interior of the channel and is supported thereby, this transverse wall carrying the bearing, so that the bearing together with the transverse wall carrying the same block the travel of the granular material longitudinally along the interior of the channel. A bypass structure cooperates with the channel at the region of the transverse wall and bearing carried thereby for providing for the granular material a path of flow bypassing the transverse wall and bearing, so that in this way the shaft of the rotary screw can be effectively supported for rotary movement while at the same time the material can be effectively conveyed.

Claims9

Dependent claims

In a conveyer for granular material, elongated hollow channel means for receiving granular material which is to be conveyed along the interior of said channel means, cover means covering said channel means, rotary screw means extending longitudinally along the interior of said channel means for conveying granular materials therein longitudinally along the interior of said channel means, said rotary screw means including an elongated shaft extending longitudinally along the interior of said channel means and a screw carried by said shaft, at least one bearing means situated in said channel means at a portion of said shaft situated between opposed ends of said shaft for supporting said shaft for rotation, transverse wall means carried by said channel means in the interior thereof and supporting said bearing means, so that said wall means and bearing means together block the flow of granular material longitudinally along the interior of said channel means, and bypass means operatively connected with said channel means at the region of said transverse wall means and bearing means carried thereby for directing the material conveyed by said rotary screw means along a path at the region of said wall means and bearing means which bypasses said wall means and bearing means.

Dependencies are inferred from the claim text.