US Patent Issued to Center Rock on Aug. 19 for "Down-the-hole drill hammer having a ribbed exhaust tube" (Virginia Inventor)

ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,202, issued on Aug. 19, was assigned to Center Rock Inc. (Berlin, Pa.).

"Down-the-hole drill hammer having a ribbed exhaust tube" was invented by Leland H. Lyon (Roanoke, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A down-the-hole hammer comprising a housing and a drill bit disposed about a distal end of the housing. The drill bit includes a head, a shank extending from the head, the shank including a bore having a plurality of ribs, and an exhaust tube configured to be coupled to the shank, the exhaust tube including a plurality of ribs for engaging the counterbore of the shank."

The patent was filed on Oct. 11, 2023, under Application No. ...