Patent ID: 9187956
Filing Date: 2015-11-17
Classification: E21B

Abstract:
1. A rotary bit pointing device, comprising: a shaft comprising a proximal end and a distal end; an end plate disposed over an outer surface of the shaft toward the proximal end of the shaft, wherein the end plate comprises a top surface having a first inner perimeter, wherein the top surface comprises a plurality of passthrough apertures and a first plurality of securing apertures; a retaining plate disposed over the outer surface of the shaft toward the distal end of the shaft, wherein the retaining plate comprises a bottom surface having a second inner perimeter, wherein the bottom surface comprises a second plurality of securing apertures; a plurality of deflection devices disposed around the outer surface of the shaft between the end plate and the retaining plate, wherein each of the plurality of deflection devices comprises a protrusion that traverses one of the plurality of passthrough apertures; a plurality of retaining pins disposed around the outer surface of the shaft between the plurality of deflection devices, the end plate, and the retaining plate, wherein the plurality of retaining pins are mechanically coupled to the end plate using the first plurality of securing apertures and the retaining plate using the second plurality of securing apertures; and a control device mechanically coupled to the protrusion of each of the plurality of deflection devices, wherein the plurality of deflection devices and the retaining plate are slidably coupled to a proximal end of a control shaft, wherein the control shaft comprises a middle portion mechanically coupled to a universal joint and a distal end mechanically coupled to a rotary drill bit.