Continuous sampling drill bit
AssigneeVeracio Ltd.
InventorsAdrian Brubacher, Christopher L. Drenth
Life of this patent
Estimating the term…
Abstract
A drill bit can be configured to form core segments during drilling. The drill bit can have having a central axis and a shank defining an inner bore. A crown can be coupled to the shank. The crown can define a cutting face and a core receiving slot that extends inwardly into the crown from the cutting face. The crown can define an inner operative circumference. A core break structure can be disposed within the shank. The core break structure can define a core break surface that extends inwardly toward the central axis and intersects an imaginary 3D projection of the inner circumference projected along the central axis.
Claims16
A drill bit configured to form core segments during drilling, the drill bit having a central axis, the drill bit comprising:
- a shank defining an inner bore;
- a crown coupled to the shank, wherein the crown defines a cutting face and a core receiving slot that extends inwardly into the crown from the cutting face, wherein the crown defines an inner operative circumference;
- a core break structure disposed within the shank, wherein the core break structure defines a core break surface that extends inwardly toward the central axis and intersects an imaginary 3D projection of the inner circumference projected along the central axis, wherein the core break structure comprises a spherical element that defines the core break structure;
- and
- a sleeve that is received within the inner bore of the shank, wherein the sleeve defines a receptacle that receives at least a portion of the spherical element,
- wherein the sleeve comprises an inner body and an outer body, wherein the inner body is configured to be received within the outer body in a plurality of rotational orientations, wherein a distance that the core break surface extends into the imaginary 3D projection is determined by a rotational orientation of the inner body relative to the outer body.
A drilling assembly comprising:
- a drill rod defining an inner bore;
- and
- a drill bit configured to form core segments during drilling, the drill bit having a central axis, the drill bit comprising:
- a shank defining an inner bore;
- a crown coupled to the shank, wherein the crown defines a cutting face and a core receiving slot that extends inwardly into the crown from the cutting face, wherein the crown defines an inner operative circumference;
- a core break structure disposed within the shank, wherein the core break structure defines a core break surface that extends inwardly toward the central axis and intersects an imaginary 3D projection of the inner circumference projected along the central axis, wherein the core break structure comprises a spherical element that defines the core break surface;
- and
- a sleeve that is received within the inner bore of the shank, wherein the sleeve defines a receptacle that receives at least a portion of the spherical element,
- wherein the shank of the drill bit is threadedly coupled to the drill rod, and wherein the drill rod biases against the sleeve.
Dependencies are inferred from the claim text.