Abstract: A window bar security system has a grill of bars positioned outside a building window and held by a plurality of standoffs. Two of the standoffs are latching standoffs and extend from opposite sides of the grill through the wall and into the building and each latching standoffs includes a hole at the distal end. Four other guiding standoffs are inserted into receptacles against coil springs and the four guiding standoffs are positioned in pairs on opposite sides and equi-distant from each latching standoff. A pair of sliding bolt mechanisms are affixed to the inner wall of the building and positioned to permit the sliding bolt of each to fit into one of the latching standoff holes and to be moved towards the center of the window to release the latching standoffs. A pair of security pins are provided with one end designed to fit into a sliding bolt mechanism for preventing the unintentional movement of the sliding bolt and with another end shaped in the form of a hook.

Abstract: A screen installer tool includes a handle, a front portion and a rear portion. A circular disk is affixed to the front portioned and a second circular disk is affixed to the rear portion, each of which rotate as the screen installer tool is moved in a forward direction. The front roller has a convex edge and the thickness of the front roller is selected to fit within the channel of a screen frame, whereby the screen is formed in the channel as the tool is moved forward. The back roller has a concave edge for receiving and inserting a pliable spline material into the formed screen within the channel as the tool is moved. A spline path is provided from the back end of the tool to permit the spline material to easily inserted into the tool around the back roller as the tool moves forward and an idler roller, under spring tension, is provided to hold the spline material against the back roller.