ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,227,984, issued on Feb. 18.
"Panic device with door closer" was invented by Kyung Tae Kim (Daegu-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a panic bar with a door closer, the panic bar having a locking device installed at a front end of a case and a door closer provided at a rear end of the case. The locking device is released upon pushing of the push bar provided in the case. An air cylinder is installed inside the case. A guide member is installed in one side of the air cylinder and a cylinder sealing cap is installed in the other side of the air cylinder. One side of a piston rod having a piston for compressing and e...