US Patent 7771239 Power receptacle device with rotatable sockets

A power receptacle device has a stationary base and at least one rotating base. The at least one rotating base is mounted rotatably in the stationary base and has at least one socket. The at least one socket is covered when the rotating base is rotated to a position to prevent users from touching the at least one socket and getting electric shock. Further, because the at least one rotating base is rotatable, the at least one socket on the at least one rotating base is exposed and accessible when the at least one rotating base is turned out from the at least one rotating base.