Licensed Professional Engineers
           
 

Overhead Doors (855) 627-6273

Overhead door accidents and powered gate accidents occur when people get caught in the mechanisms of the automatic opening and closing devices, and when they get caught between a closing door and ground or other surface. Most of these accidents are avoidable. Numerous safety devices are available for these types of products. Many newer doors come equipped with safety features, but these can fail, and the multitude of older powered doors often do not have adequate safety devices. The most common overhead and garage door accident, getting crushed by the door, is easily prevented by a leading door edge reversing sensor. These are sensors that trigger reversal of a the door closing mechanism, preventing injury or damage to who or whatever may be in its path. These are often referred to as inherent entrapment protection devices. A light beam sensor is usually used, and is required by most standards that cover residential garage doors. The cables used in overhead doors can also cause accidents if they are allowed to loop out. Cable that loops out will cinch down when the cables are pulled taut. People have been severely injured when caught in these closing loops. Simple design solutions prevent cable from looping out. Door operators, the mechanism with the motor and gearing that powers the door, also can utilize safety features that minimize the risk of hazards from powered doors. Cables have failed, sending the door crashing to the ground. This can be a fatigue failure, or a failure due to an improperly designed, constructed, or maintained door. MASE has developed innovative alternate design solutions to some of these problems. We are experienced in identifying defectively designed or produced overhead doors, and can provide top quality expert witness analysis and testimony on overhead doors and powered gates.