Patent ID: 7510086

Claim:
An arrangement for sealing off a fluid-filled, stationary pressurized compartment from an endlessly circulating, impermeable belt of a machine for at least one of producing and refining a fibrous web, said arrangement comprising: at least one seal of the pressurized compartment, said at least one seal defining a contact pressure toward the belt, said contact pressure being variable; a co-driven support element, the belt pressed by the pressurized compartment against said co-driven support element; and at least one function belt, the fibrous web running one of alone and jointly with said at least one function belt between the belt and said support element; wherein the machine channels into the belt at least one of a drive power and a drive torque, said contact pressure of said at least one seal varying as a factor of said at least one of said drive power and said drive torque channeled into the belt.