Security window system

Details Security window system Security window system

1987-08-18

1989-06-27

Dorner, Kenneth J.

Movable or removable closures

With specified means to effect emergency release to closure

49449, E05B 6510

Patent

active

048416738

ABSTRACT:
A security window includes a movable window sash having an outer frame subdivided by strong metal crossbars into small spaces for window panes too small to allow entry through the window sash by an intruder breaking the glass. The window sash slides vertically or horizontally in metal channel-shaped fixed wall frame members that permit the sash from being pried loose. A spring-loaded locking bolt is contained in a cylinder mounted interiorly of the wall in wall studs next to the window. The locking bolt is connected to an elongated rigid metal control rod extending interiorly through the wall, preferably through intervening wall studs, to a lever arm and crank mechanism in a remote location within the wall sufficiently far from the window that the lever arm cannot be reached through a broken window pane by an outside intruder. A return spring holds the locking bolt in a positive locked position engaged within aligned detents in the fixed outer window frame member and in the window sash frame. The window can be opened by the homeowner manually rotating the remote lever arm to retract the control rod and thereby move the locking bolt from its locked position in the aligned detents against the bias of the return spring to allow the window sash to slide or pivot open. Moving the window sash forcefully to its closed position automatically snaps the locking bolt into its locked position.

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