ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,551, issued on Oct. 7, was assigned to dormakaba USA Inc. (Indianapolis).
"Exit device assembly" was invented by Brian H. Hood (Zionsville, Ind.), Juan Alvarado (Indianapolis) and Jason Clifford (Noblesville, Ind.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An exit device including an intermediate transmission assembly transmitting the translation of an input into a rotational vertical rod output is disclosed. An upper door latch receiving a rotational vertical rod input to actuate an upper door latch from a latched position to an unlatched position is further disclosed. A lower latch receiving a rotational vertical rod input to actuate a lower la...