ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,404, issued on March 25, was assigned to Hilti AG (Schaan, Liechtenstein).
"Apparatus for detecting a critical fall" was invented by Varnim Goyal (Kaufering, Germany) and Bernd Ziegler (Schwabmuenchen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus contains an inertial body held by three electrical conductors along the three principal inertial axes, wherein a voltage is applied to each of the three electrical conductors and are configured such that when a predetermined acceleration threshold value for the inertial body is reached the conductivity of at least one electrical conductor is impaired such that the reaching of a prede...