ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,823, issued on Aug. 5, was assigned to Dynomax Drilling Tools Inc. (Leduc, Canada).
"Seal system" was invented by Hartley Randle (Spruce Grove, Canada), Brandon Jullion (Beaumont, Canada), Alaric Tomas (Sherwood Park, Canada) and Joshua Gamble (Spruce Grove, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sealed bearing system has a pressure-retaining seal separating two lubricating chambers, one pressure balanced to the outside and the other pressure balanced to the inside. The pressure retaining seal may be a non pumping seal. Radial bearings may be mounted near either axial side of the seal to prevent deflection. The pressure-retaining sea...