Movable or removable closures – With operator for movably mounted closure
Patent
1988-04-29
1989-09-19
Brittain, James R.
Movable or removable closures
With operator for movably mounted closure
49193, 49342, E05F 1100
Patent
active
048668826
ABSTRACT:
A window opening mechanism is disclosed which moves the entire window sash outwardly from the window frame in a plane parallel to the plane of the frame. The mechanism for accomplishing this includes a pair of pivoted L-shaped lever arms on each side of the window. The short legs of these lever arms are substantially shorter than the long legs, and the ends of the short legs are pivotally attached to the window frame relatively close together. An operating mechanism is provided for moving the elbows of the lever arms toward and away from one another, and the ends of the long legs of the arms are pivotally connected at spaced apart points on the window sash. As the elbows of the levers on both sides are moved toward one another, the window sash is pulled toward the frame. When the elbows are moved away from one another, the pivoting action of the lever arms causes the window sash to be moved outwardly from the frame to provide a "stand-out" opening of the window.
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Brittain James R.
Ptak LaValle D.
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