Patents Represented by Attorney Norbert Holler
  • Patent number: 4523977
    Abstract: A device for attenuating pressure pulses through fluids, in particular for continuous paper web producing machines, which comprises a tubular element having an inner body formed from a resilient material and an outer body formed from a rigid material, between which bodies an annular compensating chamber is provided which contains a pressurized fluid whose pressure can be varied automatically according to variations occurring in the pressure level of the fluid being conveyed, which result in said inner body of a resilient material undergoing deformation.A multilayered structure may be provided for the inner resilient body. The insertion of the attenuating device is accomplished in line with the feed conduit of the aqueous suspension to the intake tank.
    Type: Grant
    Filed: August 4, 1983
    Date of Patent: June 18, 1985
    Assignee: Arnoldo Mondadori Editore S.p.A.
    Inventor: Maurizio Cantini