Veracio Ltd.

Boart Longyear Manufacturing and Distribution Inc.

Boart Longyear Co.

Adrian Brubacher

Anthony Lachance

Mark Bily

Robert Andrew Corona

Christopher L Drenth

Michael Ravella

A drill bit having a central axis can comprise a shank defining an inner bore and a crown having a cutting face. The crown can define an outer operative circumference. The crown can comprise a core-receiving slot in communication with the inner bore of the shank. One or more peripheral slots can be in communication with the inner bore of the shank. The crown can comprise one or more face channels that are in communication with the core-receiving slot and a respective peripheral slot. A base portion can be positioned within the core-receiving slot. The base portion can define a breaking surface. The peripheral slots can be configured to receive fluid moving in a distal direction toward the cutting face of the crown. The face channels can be configured to deliver fluid from the respective peripheral slot to the core-receiving slot.

Continuous sampling drill bit

A drill bit having a longitudinal axis extending through a center of the drill bit is disclosed. A plane including the longitudinal axis of the drill bit bisects the drill bit and divides the drill bit into first and second sides. The drill bit has a shank defining an interior space and a crown coupled to the shank. The crown has a circumferential outer surface, a cutting face, and at least one bore that extends through the crown from the interior space of the shank to the cutting face. Each bore has an outlet defined by the cutting face. The cutting face defines a face channel that extends to the circumferential outer surface of the crown. The face channel has an outlet where the face channel meets the circumferential outer surface of the crown. The longitudinal axis intersects the face channel. The majority of the perimeter of the outlet of each bore is positioned on the first side of the drill bit. The outlet of the face channel is on the second side of the drill bit.

Percussive drill bit

Drill bit

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.

Growing community of inventors

North Bay, Canada

Adrian Brubacher