Patents by Inventor Kari Parssinen

Kari Parssinen 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).

  • 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
  • Publication number: 20040255796
    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: Application
    Filed: March 18, 2004
    Publication date: December 23, 2004
    Inventors: Mauri Marttila, Harri Niemi, Kari Parssinen
  • 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
  • Patent number: 6109550
    Abstract: An arrangement for providing continuous grinding in a pulp grinder comprising a feed chute and a piston in the feed chute moving lengthwise of the feed chute for pressing the wood in the feed chute against a grindstone. The arrangement comprises rotary feed members between the piston and the grindstone on the sides of the feed chute for pushing the compressed wood further against the grindstone. Also, the arrangement comprises a closing member that can be pushed between the compressed wood and the piston to prevent the wood from moving backward with the piston as the piston is moved to the initial position, ready for the stroke, to allow the feed of a new batch of wood.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: August 29, 2000
    Assignee: Valmet Corporation
    Inventors: Pekka Haikkala, Kari Parssinen, Jouko Hautala, Olli Tuovinen, Heikki Liimatainen, Simo Setala
  • Patent number: 6095443
    Abstract: An arrangement in a pulp grinder comprising a grindstone, a feed chute extending to the grindstone, a piston moving in the feed chute, an auxiliary piston and closing members. In the arrangement, there are recesses on the front of the piston and apertures in the auxiliary piston so that the closing members can be pushed from both sides of the feed chute through the auxiliary piston to the recesses of the piston so that they settle behind the wood pressed by the piston.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: August 1, 2000
    Assignee: Valmet Corporation
    Inventors: Pekka Haikkala, Jouko Hautala, Heikki Liimatainen, Kari Parssinen, Simo Setala, Olli Tuovinen