High School Senior Invents Intruder-Proof Door Locking Device


Legislators around the country are sitting on their hands trying to avoid the subject of gun control. While they hem and haw, this high school senior got busy and invented a device to keep an intruder out of classrooms. Since the February 14 mass shooting in Parkland, Florida, the country has been in an uproar.

Parents and students are calling out for sensible gun reforms. Legislators are still sending thoughts and prayers and claiming that “Now is not the time” to discuss gun safety measures. But for this high school senior, it was a call to action.

One Student Making a Difference


Justin Rivard attends Somerset High School in Wisconsin and wants to keep his fellow students safe in their classrooms. This intruder-proof device is simple, easy to put in place, and can move from room to room. While describing why his invention is better than standard door locks, Rivard said:

You can lock a door with a lock, it can get shot out. You can lock a door with this, it can’t get shot out. You can’t get around it.

The device, called the “JustinKase,” is constructed of steel plates and connecting rods. It incorporates a sliding mechanism that locks it in place. The plates are molded and form-fit around the entire door jamb, providing a solid base. The bar extends the width of the door, with arms that hold the door in place.

Proudly showing off his invention:

I call this the JustinKase, You don’t want to use it, but just in case you need it, it’ll be there.

Rivard understands the enormity of his device, stating:

My impact is in every room.

Schools are Already Using the Devices

Somerset High School ordered 50 of the devices. That covers every classroom in their building. They have been ordered for the schools in the Grantsburg School District. At only $95.00 per device, it is a lot less expensive than arming and training teachers to use firearms.

Rivard’s shop teacher, Eric Olson, speaks highly of the young man:

He’s the special combination of motivation and brains and has a motor that just keeps going.

Rivard has filed for a patent on his invention. He has already made plans to enlist in the Army following his graduation, so his father will run the fledgling business in his absence.


Featured image from KARE TV video