Former Local Teacher's Invention Could Save Lives in Shooting Incidents

The device won't stop shooters but it can buy time and keep students safer.

Bob Ploskunak, a retired Woodland Hills teacher, has invented a safety device that can prevent shooters from entering school classrooms.

The device may of interest to parents and school administrators alike. 

WTAE-TV reports that Ploskunak's invention, JAMBLOCK, a lightweight piece of steel, can be slipped under a classroom door and secure it in place, preventing intruders from entering. While it doesn't directly protect students, it does buy more time until police arrive at the scene.

Ploskunak, who had been an industrial arts teacher at Woodland Hills High School, retired from the school district in 2011 after 35 years of service,

For more about Ploskunak and the device, click here for WTAE's story.

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Mark A. January 03, 2013 at 01:07 AM
This thing would be more effective than any armed guard, as long as the teacher could get it set up in time.
I Gilbert January 06, 2013 at 04:03 PM
The device is totally ineffective, a false sense of security and a waste of money. There are devices that can be carried in a backpack that are used to breech open a door. These "Dynamic Entry" devices are sold on the internet and are already in use by SWAT teams and military personnel.


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