Patents Assigned to Stratum Oy
  • Coated roll or cylinder and machine having same
    Patent number: 7052780
    Abstract: The invention provides a coated composite cylinder and a machine for making paper including a coated composite cylinder. On top of said composite cylinder (1) is drawn or extruded a metal casing (2), whose metal surface is modified with a metal treatment process and/or plated with a coating layer.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: May 30, 2006
    Assignee: Stratum Oy
    Inventors: Pekka Laukkanen, Antti Veli Antero Vähämaa
  • Coating method for a roll or cylinder
    Publication number: 20040151857
    Abstract: The invention provides a method for coating a composite cylinder. On tope of said composite cylinder (1) is drawn or extruded a metal casing (2), whose metal surface is modified a metal treatment process and/or plated with a coating layer.
    Type: Application
    Filed: January 21, 2004
    Publication date: August 5, 2004
    Applicant: Stratum Oy
    Inventors: Pekka Laukkanen, Antti Veli Antero Vahamaa
  • Coating method for a roll or cylinder
    Patent number: 6699417
    Abstract: The invention relates to a method for coating a composite cylinder. On top of said composite cylinder (1) is drawn or extruded a metal casing (2), whose metal surface is modified a metal treatment process and/or plated with a coating layer.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: March 2, 2004
    Assignee: Stratum Oy
    Inventors: Pekka Laukkanen, Antti Veli Antero Vähämaa