metal tilting, swinging and folding door units and metal gates

hydraulic operational control mechanisms for residential gates, for single or double swing gates, for double folding gates, for counter weighted up-and-over garage doors, for gates for heavy doors to be installed underground; automatic hydraulic barrier gate units to regulate traffic flow at parking lot and garage entrances and exits

electrically operated devices for opening and closing gates, doors, garage doors, folding doors and barrier gates; electromechanical controls for sliding gates; ceiling-mounted electric controls for spring balanced garage doors; remote control receivers and transmitters; signalling devices; namely, flashing warning light indicators which signal opening and closing of gates, visual indicators with lamps used as traffic controlling lights in car parking garages and electric switches; security and safety devices with and without photoswitches; namely, apparatus sensitive to light used to control opening and closing of gates and to avoid closing of gates when people or objects are passing through; metal detectors; pneumatic safety ribs; namely, apparatus fixed on the end of gates, operating switches sensitive to pressure used to avoid closing of gates; pneumatic drive-over strips; namely, strips placed on the ground before automatic gates, operating switches sensitive to pressure, used to control opening and closing of gates and to avoid closing of gates when people or things are passing through