Window intrusion Barrier "B"

The barrier apparatus for a vertically adjustable window, the apparatus having an adjustable length adapted for insertion into a window casement below a framed rectangular window slideably positionable within said casement, the barrier apparatus comprising;

• (a) a first and second gridwork panel horizontally spaced in substantially co-planar juxtaposition, said panels comprising rigid rectangular frames adapted to border and support said panels, each frame comprising horizontally disposed upper and lower borders, and inner and outer vertically oriented side borders, said inner side borders facing each other, said facing side borders having vertically spaced side holes.
• (b) first and second horizontally directed posts affixed medially between upper and lower borders of each panels, said posts affixed to said facing inner side borders adapted to post through guide holes, one of said horizontally directed posts having a threaded exterior surface;
• and
• (c) locking means comprising a wing nut and a washer, said washer threadably encircling said threaded post, said washer having a plurality of radially disposed apertures, said washer located between said wing nut and one of said vertically inner side border whereby said threaded posts may be secured to said vertical inner side borders through a rotational advancement of said wing nut upon said one of said horizontal post having threaded extension surface.