Patent ID: 6397493
Filing Date: 2002-06-04
Classification: D21F,F26B

Abstract:
An apparatus for at least one of producing and treating a material web, comprising:at least one wire; an outer sealing belt, which is wider than said at least one wire, comprising a pair of lateral edge regions; at least one heatable unit, having an outer cylindrical surface, wherein said at least one wire and said outer sealing belt are at least partially wrapped around said at least one heatable unit; an overpressure cap arranged to form a pressure chamber containing a medium under pressure, said medium under pressure exerting a pressure on said at least one heatable unit; and at least one of: (a) a seal formed between said lateral edge regions and said heatable unit; and (b) a seal formed between end faces of said overpressure cap and an opposing wall to seal said pressure chamber from an external environment.