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(11) | EP 0 649 970 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Ventilation unit for window frames or door frames |
(57) A window or door frame (5) has a horizontal transom (4) above a glazing panel (3).
An fan (2) or ventilation grille is mounted in an opening (6) in the frame above the
transom (4). The opening (6) has a rebate (7) extending around its inner periphery.
The fan (2) is held against one side of the rebate (7) and is clamped in position
by a plate (21) held against the other side of the rebate (7) by screws (22) extending
between the fan and the plate. |