US Patent Issued to Boart Longyear Manufacturing And Distribution on April 22 for "Percussive drill bit" (Canadian Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,522, issued on April 22, was assigned to Boart Longyear Manufacturing And Distribution Inc. (Salt Lake City).

"Percussive drill bit" was invented by Anthony Lachance (Burlington, Canada), Adrian Brubacher (North Bay, Canada) and Mark Bily (Milton, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "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 ...