Patent ID: 7147230

Claim:
A sealing device for drum filters or filter presses for forming a seal between rotary drum end faces and end faces of a stationary trough in which rotary drums are being situated, the sealing device comprises: a sealing element ( 3 ) disposed in a cylindrical groove ( 1 ) situated in a periphery of an end face, in which the sealing element ( 3 ) is pressed into sealing contact against an opposite end face by a force exertion member in a form of a hose element ( 2 ), which is constituted by at least two flexible hoses ( 2 a , 2 b ) disposed one on top of the other flexible hose in a bottom of the groove ( 1 ) beneath the sealing element ( 3 ), the hoses ( 2 a , 2 b ) being internally pressurizable for a formation of a force exertion, the hose element ( 2 ) having two ends in which the two hoses ( 2 a , 2 b ) disposed one on top of the other are open at their respective ends and the two ends of the hose element being provided with sleeves ( 7 ) which enclose the open ends of the hoses ( 2 a , 2 b ) and the sleeves ( 7 ) being held in place in the groove ( 1 ) with a T-shaped holder element ( 10 ) having a cover ( 11 ) and a middle piece ( 12 ), spaces ( 19 a , 19 b ) being formed on both sides of the middle piece ( 12 ) of the holder element between the ends of the hose element ( 2 ) and the middle piece ( 12 ), the space ( 19 a ) being provided with an inlet ( 17 ) for pressurizing medium and the space ( 19 b ) on the other side of the middle piece ( 12 ) of the holder element being provided with an outlet ( 18 ) for the pressurizing medium.