Ventilation unit

Details Ventilation unit Ventilation unit

F - Mech Eng,Light,Heat,Weapons

24

F

98/25

F24F 13/12 (2006.01) E06B 7/02 (2006.01) E06B 7/10 (2006.01) F24F 13/10 (2006.01) F24F 13/16 (2006.01) F24F 13/24 (2006.01)

Patent

CA 1184058

ABSTRACT OF THE DISCLOSURE: The invention relates to a ventilation unit in a frame or the like, the said unit comprising a flow-duct and a slide having a leg which opens and closes the said flow-duct, the said slide being adapted to move at least partly back and forth in the said flow-duct, a stop-surface being associated with the leg which possesses a sealing surface. A ventilating unit of this kind is fitted, for example, in a window-frame or an opening in a wall, the slide providing a satisfactory seal in the closed position, since a major energy loss would otherwise have to be feared. The ventilation unit is to be reliable in operation and to provide reliable sealing. In order to solve this problem, it is proposed that the slide be substantially U-shaped, a second leg having a sealing surface being provided in the flow-duct. This second leg extends over a portion of the structural height of the said flow-duct and a stop-surface is associated with seal- ing surface of the said second leg, a guide-element for the slide being provided on both longitudinal sides of the said flow-duct. The ventilation unit according to the invention thus comprises at least two sealing surfaces, so that, when the slide is closed, satisfactory sealing is assured. The slide is furthermore reli- ably guided in a simple manner by the said guide-elements, thus ensuring great reliability.

399566

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