ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,404,932, issued on Sept. 2, was assigned to Hilti AG (Schaan, Liechtenstein).
"Sealing geometry for a mobile power tool" was invented by Jens Kondratiuk (Buchs, Switzerland) and Daniel Hummel (Buchs, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sealing geometry for a mobile power tool is provided wherein the mobile power tool has a drive unit, wherein the sealing geometry is designed to seal off an interior (IB), containing a lubricant, of the drive unit from an exterior (AB) outside the drive unit. The sealing geometry has a seal that is contactless at least during operation of the drive unit."
The patent was filed on Oct. 14, 2021, un...