ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,894, issued on Sept. 30, was assigned to DORMAKABA DEUTSCHLAND GMBH (Ennepetal, Germany).
"Drive device for moving a leaf" was invented by Jan-Hendrik Jaehnke (Ennepetal, Germany), Thomas Balk (Ennepetal, Germany), Sven Busch (Ennepetal, Germany), Martin Wagner (Ennepetal, Germany) and Jan Eric Vom Brocke (Ennepetal, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drive device for moving a leaf, in particular a door leaf or a window leaf, with an electric machine including an, in particular single, stator and an, in particular single, rotor, which can be rotated about a machine axis, and with a gear coupled to the electric machine. The gea...