ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,821, issued on March 17, was assigned to Schlage Lock Co. LLC (Carmel, Ind.).
"Door operator armature connections" was invented by Brian C. Eickhoff (Danville, Ind.), Nagesh Varadaraju (Bangalore, India), David V. Toloday (Martinsville, Ind.), Subashchandra G. Rai (Bangalore, India), Chad Eagin (Carmel, Ind.) and Benaka Gireesha (Udupi, India).
According to the abstract* released by the U.S. Patent & Trademark Office: "An exemplary door control assembly includes a door control and an armature assembly. The door control includes a body and a pinion rotatably mounted to the body for rotation about a rotational axis. The pinion has a radially-outer periphery and a recess is formed ...