Patent ID: 11965382
Assignee: NATIONAL OILWELL VARCO, L.P.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. An insert for a drill bit, the insert comprising:
a base portion;
a formation engaging portion extending from the base portion, wherein the formation engaging portion has a C-shape in top view and an arcuate longitudinal axis;
wherein the formation engaging portion includes a first end, a second end opposite the first end, a first lateral side extending from the first end to the second end, and a second lateral side extending from the first end to the second end, and an elongate crown extending longitudinally from the first end to the second end and laterally from the first lateral side to the second lateral side;
wherein the first lateral side comprises a concave curved surface extending from the first end of the formation engaging portion to the second end of the formation engaging portion and the second lateral side comprises a convex curved surface extending from the first end of the formation engaging portion to the second end of the formation engaging portion, wherein the concave curved surface of the first lateral side has a first radius of curvature in top view of the insert and the convexed curved surface of the second later side has a second radius of curvature in top view of the insert, wherein the first radius of curvature of the first curved surface is different than the second radius of curvature of the second curved surface;
wherein the insert has a width measured perpendicular to the arcuate longitudinal axis from the concave curved surface of the first lateral side to the convex curved surface of the second lateral side, wherein the width of the insert changes moving longitudinally along the arcuate longitudinal axis between the first end of the formation engaging portion and the second end of the formation engaging portion.