Prior to now, the most important concern with functioning an overhead garage door was the likely risks connected with the springs employed for balancing the doorway body weight. Pre mid 1960's garage doorway installations typically relied on a pair of stretched (tensioned) springs to assist the operation on the garage doorway pivoting hinges. These springs grew to become loaded (tensioned) since the doorway was moved to the shut posture. Unloading (releasing) from the saved…