ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,821, issued on Sept. 8, was assigned to Hainan Xunwei Technology Co. Ltd. (Haikou, China).
"Emergency device" was invented by Gonghai Fu (Haikou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An emergency device includes: a first housing, an inflation pump, an internal power supply, a first cable, a second cable, a first circuit board and an output terminal. The inflation pump is provided with a first power device, a detection assembly, a first hose and a first air guide member, and the first power device includes a detection portion, a first air outlet portion, a first air channel and a second air channel, where the first air channel is conf...