Patent ID: 6511103
Filing Date: 2003-01-28
Classification: B01D,F24F

Abstract:
A sealed connection device for a ventilation filter for use on a ventilation circuit, the device comprising:a cylindrical housing adapted to receive said filter, the housing having an axis, the housing being fixed at a second end to a ventilation circuit flange and having a first end mounted on a mobile companion flange, the companion flange being held in resilient manner under axial tension by holding means under tension; a fixed sheath coaxial with and secured to said housing, about which sheath said companion flange slides axially, a sealing system being placed between the sheath and the companion flange, on which sheath there are disposed said holding means under tension, and to which sheath there are secured three fixed wheels projecting outwardly therefrom; a cam coaxially surrounding said sheath over a certain length and constituted by a ring having three ramps each in the form of a helical segment in which the helix is coaxial with said sheath, said ramps receiving respective ones of the wheels, turning of said cam around said axis of the housing causing said companion flange to move in axial translation; and means for turning said cam.