Patents Assigned to Smurfit Carton y Papel de Mexico S.A. de C.V.
  • Variable hydraulic pulse drainage cylinder former
    Patent number: 6464836
    Abstract: A cylinder former having a variable hydraulic pulse whilst drainage, for use in papermaking comprising a drainage means comprising a cylinder mould and a contoured member adjacent the cylinder mould having a plurality of hills and valleys which force entrained liquid through the fiber suspension forming on the cylinder mould so as to improve sheet formation. A baffle is provided in the discharge portion of the former to prevent stock build-up therein.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: October 15, 2002
    Assignee: Smurfit Carton y Papel de Mexico S.A. de C.V.
    Inventor: Luis Fernando Cabrera y Lopez Caram