US 5,147,030 A · Impeller assembly

Abstract

An impeller assembly having a housing supporting a rotatable impeller. The housing has a bottom entrance opening and a top exit opening separated by a curved back wall. A liner of low friction and abrasion resistant plastic material located adjacent a portion of the inside of the back wall prevents material buildup on the back wall. The liner is removeably mounted on the housing so that it can be replaced without taking the housing apart. The impeller has a plurality of pivoted paddle assemblies. Each paddle assembly has a body carrying a generally U-shaped liner of low friction and abrasion resistant material to minimize the collection of material on the paddle assemblies. The housing includes a knife adjacent the entrance opening. The body of the impeller assembly has a transverse lip that moves in close relation relative to the knife to cut material.

Claims17

Dependent claims

A paddle assembly for an impeller of a material handling machine comprising:

a body having a leading side, arm means connected to the body adapted to be attached to a movable member, said body having an outer end opposite the arm means and a recess on the leading side of the body, a transverse lip at the outer end of the leading side thereof, said lip having a transverse cutting edge and a transverse wall inwardly of the cutting edge, liner means of low friction and abrasive resistant plastic located in said recess, and means connecting the liner means to said body thereby holding the liner means in said recess.

Dependencies are inferred from the claim text.

Impeller assembly

Life of this patent

Impeller assembly

Life of this patent

Abstract

Claims17