Formation-engaging assemblies and earth-boring tools including such assemblies

摘要

A formation-engaging assembly includes a formation-engaging structure holder with a side surface between a proximal end and a distal end, a receptacle in the distal end, and a lateral protrusion extending from a portion of the side surface of the formation-engaging structure holder adjacent the distal end. A formation-engaging structure may include a formation-engaging surface at a distal end, a proximal end and a sidewall therebetween. The proximal end and at least a portion of the sidewall of the formation-engaging structure may be received within the receptacle of the formation-engaging structure holder. Earth-boring tools may include such formation-engaging assemblies.

主权项

1. A formation-engaging assembly, comprising:
a formation-engaging structure holder, comprising:
a substantially cylindrical side surface between a proximal end and a distal end;a receptacle extending longitudinally into the distal end;a relief in the substantially cylindrical side surface, wherein the relief comprises a bore extending through the formation-engaging structure holder; anda lateral protrusion extending from a portion of the substantially cylindrical side surface of the formation-engaging structure holder only adjacent the distal end; and a formation-engaging structure with a formation-engaging surface at a distal end, a proximal end and a sidewall therebetween, wherein the proximal end and at least a portion of the sidewall of the formation-engaging structure is received within the receptacle of the formation-engaging structure holder.