Patents by Inventor Markku Kyynarainen

Markku Kyynarainen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Decontamination valve for a jet pipe in a paper or board machine
    Patent number: 5664731
    Abstract: A decontamination valve for a jet pipe in a paper or board machine, including a disc valve having a closed position and an open position. The disc valve is in the closed position when the jet pipe is in operation and is in the open position when the jet pipe is being cleaned in order to remove cleaning/washing water used in the cleaning process. The disc valve is arranged to close in the same direction in which pressure effective in the jet pipe attempts to shift the valve.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: September 9, 1997
    Assignee: Valmet Corporation
    Inventors: Markku Lemetyinen, Markku Kyynarainen