Window system with locking device
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United States of America Patent
Stats
-
Jan 20, 2004
Grant Date -
Jan 1, 2004
app pub date -
Jun 28, 2002
filing date -
Jun 28, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A window system comprises a frame having a top, a bottom and two sides, at least one slidable and tiltable sash disposed within the frame, and a locking device attached to each side of the sash. The locking device is pivotable between an unlocked position to permit tilting of the sash, and a locked position which locks the sash to the frame. In the locked position, the locking device prevents any air from infiltrating between the sides of the sash and the frame.
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