Patents Assigned to Winter Osakeyhtio
  • Method of mixing paints and their toners
    Patent number: 4335759
    Abstract: A machine for mixing paints and their toners, comprising a plurality of toner containers wherefrom required quantities of selected toners are added to a basic paint can. Each toner container is at its upper end provided with a back pressure valve allowing air to enter into the container as the toner level sinks but preventing air from leaving the container.
    Type: Grant
    Filed: August 23, 1979
    Date of Patent: June 22, 1982
    Assignee: Winter Osakeyhtio
    Inventors: Veikko Pattiniemi, Eero Koivisto, Heikki Kokki, Aslak R. Heikel