ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,566, issued on Dec. 9, was assigned to Hilti AG (Schaan, Liechtenstein).
"Dust protection cap with vibration decoupling" was invented by Maximilian Knyrim (Ehingen, Germany) and Udo Hauptmann (Landsberg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Tool fitting device for a power tool, in particular a chipping hammer, including a holding device for receiving and holding a tool shank, a tool cap, and a dust protection device for preventing the penetration of dust into the tool fitting device. The tool cap includes at least one receiving element and the dust protection device includes at least one protruding element corresponding to the recei...