Patents by Inventor Jaakko Pitkakangas

Jaakko Pitkakangas 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: 9096382
    Abstract: A cover and frame assembly for a discharge end of a belt conveyor, the assembly including: a stationary frame supporting the discharge end and including sides extending beyond the discharge end; a cover having a top, opposite side walls extending down from the top and an end face extending between the side walls and down from the top; a rim along each of the side walls, wherein each the rim seats on an upper edge of one of the sides of the stationary frame, while the cover is closed over the discharge end, and a roller on each upper edge of the sides of the stationary frame, wherein each roller extends above the upper edge and seats in a hole or pit in the rim seated on the upper edge while the cover is closed, wherein the rim of each side wall slides over the corresponding roller as the cover is opened.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: August 4, 2015
    Assignee: Andritz OY
    Inventors: Iiro Laaksonen, Jaakko Pitkakangas, Ari Hannimaki, Jari Sorvisto
  • Publication number: 20130313083
    Abstract: A cover and frame assembly for a discharge end of a belt conveyor, the assembly including: a stationary frame supporting the discharge end and including sides extending beyond the discharge end; a cover having a top, opposite side walls extending down from the top and an end face extending between the side walls and down from the top; a rim along each of the side walls, wherein each the rim seats on an upper edge of one of the sides of the stationary frame, while the cover is closed over the discharge end, and a roller on each upper edge of the sides of the stationary frame, wherein each roller extends above the upper edge and seats in a hole or pit in the rim seated on the upper edge while the cover is closed, wherein the rim of each side wall slides over the corresponding roller as the cover is opened.
    Type: Application
    Filed: October 25, 2011
    Publication date: November 28, 2013
    Applicant: Andritz Oy
    Inventors: Iiro Laaksonen, Jaakko Pitkakangas, Ari Hannimaki, Jari Sorvisto
  • Patent number: 7931152
    Abstract: A log shuffler and conveyor assembly including: a chute including a log conveyor having a bottom surface and at least one sidewall; a gap in the log conveyor, and a log shuffler arranged in the gap of the conveyor, wherein the shuffler includes at least one pivoting plate having a first edge moving reciprocally above and below the bottom surface of the chute.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: April 26, 2011
    Assignee: Andritz Oy
    Inventors: Janne Lahteenmaki, Lennart Thornquist, Pekka Kokko, Jaakko Pitkakangas
  • Publication number: 20080017480
    Abstract: A log shuffler and conveyor assembly including: a chute including a log conveyor having a bottom surface and at least one sidewall; a gap in the log conveyor, and a log shuffler arranged in the gap of the conveyor, wherein the shuffler includes at least one pivoting plate having a first edge moving reciprocally above and below the bottom surface of the chute.
    Type: Application
    Filed: June 28, 2007
    Publication date: January 24, 2008
    Applicant: ANDRITZ OY
    Inventors: Janne LAHTEENMAKI, Lennart THORNQUIST, Pekka KOKKO, Jaakko PITKAKANGAS
  • Patent number: 6189583
    Abstract: An apparatus for removing bark from a wood and bark containing log flow. The apparatus includes a number of bark separation units, each of the bark separation units comprising an aggregate of a toothed disc mounted on a first disc shaft and a smooth-surface disc mounted on a second disc shaft. The disc shafts are set crosswise relative to a feeding direction A applied to the log flow by the toothed disc upon the rotation thereof and at a distance from each other. The toothed disc and the substantially smooth-surface disc of a bark separation unit are set in a staggered fashion relative to each other in the axial direction of the disc shafts.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: February 20, 2001
    Assignee: Andritz-Patentverwaltungs-GmbH
    Inventors: Pekka Kokko, Ari Hannimåki, Jaakko Pitkåkangas