Pneumatic Door Stabilizer

Jeff Dennstaedt

 

THE PROBLEM

Doors (particularly lightweight doors) that bounce open when they are slammed.

THE DESIGN GOALS

Develop a door-stabilizing mechanism that will allow a door to be closed gently or slammed shut and remain closed; work on all types of doors, including lightweight doors; automatically reset itself; and be visually acceptable, quiet, and reliable.

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FIGURE 1

THE SOLUTION PRINCIPLE

The impact of slamming a door is often too great to be absorbed by a normal door latch or magnetic catch. The result is that the door bounces back open. Our solution to this problem includes a magnetic door catch to ...

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