Patents by Inventor Kari Pärssinen

Kari Pärssinen 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).

  • Binding device and a method for forming a stock of brushwood
    Patent number: 7073432
    Abstract: A method for binding logging waste or small timber material by using an automatic binding device, wherein the material is collected in a continuous bundle of brushwood and fed in the longitudinal direction. The material of the bundle of brushwood is compressed further in the binding device by tensioning the band which is fed in a continuous manner around the bundle of brushwood, and the band is finally locked as a strap which keeps the bundle of brushwood together.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: July 11, 2006
    Assignee: Plustech Oy
    Inventors: Mauri Marttila, Harri Niemi, Kari Pärssinen
  • Arrangement in a pulp grinder
    Patent number: 6193180
    Abstract: An arrangement in a pulp grinder comprising a grindstone (1), a feed chute (2), and a piston to feed wood (3) against the grindstone (1). The arrangement comprises separate pushing members (6), which are arranged to push the wood (3) against the grindstone (1) at essentially the entire width of the feed chute when the percussion piston is moved back to the stroke position to allow the feed of a new batch of wood.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: February 27, 2001
    Assignee: Valmet Corporation
    Inventors: Pekka Haikkala, Jouko Hautala, Heikki Liimatainen, Kari Pärssinen, Simo Setälä, Olli Tuovinen