PITSAFE

Electronic safety systems for elevators comprised of circuit boards and electronic controls for elevators; Elevator safety equipment, namely, electronic controls and circuit boards for elevators; Electronic elevator controllers for safety and maintenance; Electronic controller to manage the movement and functions of an elevator; Systems for preventing the movement of elevators during maintenance, repair, and operation comprised of electronic controllers and circuit boards; Systems for temporarily circumventing systems for preventing the movement of elevators comprised of electronic controllers and circuit boards