Window security device

A window frame assembly comprising:

• a window sill defining a sill locking rib;
• a rail defining a hand ledge;
• and
• a window security device, the window security device pivotably attached to the rail, the window security device selectively engaging the sill locking rib, the window security device comprising:
• a pull handle;
• and
• a locking bar, the locking bar defining a tongue, an engagement end of the tongue positioned in contact with the hand ledge and a top paddle surface of the pull handle, the top paddle surface of the pull handle facing the hand ledge;
• and
• wherein:
• the locking bar is selectively positionable about and between a release position and a secured position;
• the pull handle further defines a bottom paddle surface positioned opposite from the top paddle surface,
• the pull handle defines a tongue slot extending through the pull handle from the top paddle surface to the bottom paddle surface;
• the tongue extends through the tongue slot and each of the top paddle surface and the bottom paddle surface;
• the engagement end of the tongue is aligned with the tongue slot in the release position;
• and
• the engagement end of the tongue is misaligned with the tongue slot in the secured position.

A method of operating a window frame assembly comprising a rail, a window sill, and a window security device, the method comprising:

• positioning the rail in a closed position wherein the rail rests against the window sill;
• positioning the window security device in a locked position, the window security device pivotably attached to the rail, the window security device selectively pivotable about and between the locked position and an unlocked position, the rail vertically fixed relative to the window sill when the rail is in the closed position and the window security device is in the locked position;
• repositioning a locking bar of the window security device from a release position to a secured position, the window security device being pivotable from the locked position to the unlocked position when the locking bar is in release position, the window security device being prevented from pivoting from the locked position to the unlocked position when the locking bar is in the secured position;
• and
• sliding the locking bar of the window security device from the secured position to the release position and depressing an engagement end of a tongue of the locking bar into a tongue slot defined by a pull handle of the window security device.

A method of operating a window frame assembly comprising a rail, a window sill, and a window security device, the method comprising:

• positioning the rail in a closed position wherein the rail rests against the window sill;
• positioning the window security device in a locked position comprising:
• engaging a handle locking rib of the window security device with a sill locking rib of the window sill;
• and
• pivoting the window security device away from a hand ledge of the rail, the window security device pivotably attached to the rail, the window security device selectively pivotable about and between the locked position and an unlocked position, the rail vertically fixed relative to the window sill when the rail is in the closed position and the window security device is in the locked position;
• and
• repositioning a locking bar of the window security device from a release position to a secured position, the window security device being pivotable from the locked position to the unlocked position when the locking bar is in release position, the window security device being prevented from pivoting from the locked position to the unlocked position when the locking bar is in the secured position.

A method of operating a window frame assembly comprising a rail, a window sill, and a window security device, the method comprising:

• positioning the rail in a closed position wherein the rail rests against the window sill;
• positioning the window security device in a locked position, the window security device pivotably attached to the rail, the window security device selectively pivotable about and between the locked position and an unlocked position, the rail vertically fixed relative to the window sill when the rail is in the closed position and the window security device is in the locked position;
• and
• repositioning a locking bar of the window security device from a release position to a secured position comprising misaligning an engagement end of a tongue of the locking bar with a tongue slot defined by a pull handle of the window security device, the window security device being pivotable from the locked position to the unlocked position when the locking bar is in release position, the window security device being prevented from pivoting from the locked position to the unlocked position when the locking bar is in the secured position.