Okay, here’s an idea I thought of… what about a house door closer? I’m envisioning a smallish motor on a rotating arms that would sit on the hinge(s) of a door. When activated the motor would slowly rotate the arm, pushing the door closed, then rotate back into “resting” position so that it wouldn’t interfere with manually opening the door later.
The beauty of this would be really allowing for automation of closing/locking your door after you left. Imagine pushing a ‘smartButton’ or triggering the event from your cellphone. The Event waits 20 seconds for you to leave the house, then activates the door closer. After the door closer completes it action and reports back that the door is closed, the Event confirms this with the open/close sensor, then triggers the door lock to turn… bam… house is locked and secured. If anything fails in the process you get an instant alert/text/email/whatever.
And because this just closes the door (doesn’t hold it closed), you don’t need to worry about not being able to open the door if you don’t have a smartphone or if power goes out. Also, because we’re just closing, not opening the door, we don’t need to worry about finding a way to turn the handle/latch on the door to open it.
Now, obviously some things would need to ironed out: First, the motor would need to have some sensor that if x-amount of resistance was felt, it would stop. Don’t want to crush any pets or kids after all. Also have to find a way to generate enough torque to close the door without using much power or the user would have to be changing batteries constantly or hard-wiring the motor into the house electricity.