Patent ID: 7946355

Claim:
An auger assembly comprising: a shaft; a first flight unit mounted on the shaft; a second flight unit mounted on the shaft; the first flight unit having a first sleeve located around the shaft; said first sleeve having opposite sides and a plurality of circumferentially spaced recesses in one end thereof, and a plurality of circumferentially spaced projections in the end opposite the one end of the first sleeve; a second flight unit having a second sleeve located around the shaft; said second sleeve having opposite sides and a plurality of circumferentially spaced recesses in one end thereof, said circumferentially spaced projections of the first sleeve extended into the circumferentially spaced recesses of the second sleeve to drivably connect the first sleeve to the second sleeve; a pair of helically curved flights secured to the opposite sides of the first and second sleeves, each of said flights having a first radial outwardly extended end located below the upper end of each sleeve and a second radial outwardly extended end located above the lower end of each sleeve, said second radial outwardly extended end being circumferentially spaced from the first radial outwardly end, said helically curved flights secured to the first and second sleeves being axially spaced from each other; a first member connected to the first flight unit, said member including projections extended into the recesses in one end of the first sleeve to drivably connect the first member to the first sleeve; a first fastener securing the first member to the shaft whereby on rotation of the shaft the first and second flight units are rotated with the shaft; a second member operatively connected to the second flight unit; and a second fastener securing the second member to the shaft, said first and second members drivably connecting the first and second flight units to the shaft.