a utility lighter includes a trigger adapted to simultaneously engage a fuel valve and piezo - electric element . a safety mechanism engages the trigger to prevent inadvertent ignition of the lighter or use of the lighter by a small child . the safety mechanism physically restricts movement of the trigger when engaged . the safety mechanism may be disengaged to allow the trigger to be activated . the safety mechanism may be released without extinguishing the flame and is re - engaged when the trigger is released .