Patent ID: 9334693
Filing Date: 2016-05-10
CPC Classification: E21B

Claim Text:
1. A granular solid material cone feeder for a centrifuging screw-auger conveyer, comprising: a funnel-shaped cutter-head nose shell of high hardness alloy with a conical skirt and a central attachment point for a rotating driveshaft; a first set of equally distributed louvers externally disposed in the conical skirt and that open on the outside with axial-arranged digging scoops; a first set of adjacent louvers on the inside of the nose shell with corresponding tilted or internally curved material-acceleration and deflection blades for each; a corresponding first set of oversize-material rejecting slots disposed between the digging scoops and the material acceleration/deflection blades; and a circular aft brim or cylindrical extension to mate with a centrifuging screw-auger conveyer and contain loose material within.