Patents Assigned to Roger Sigouin
  • Tree harvester
    Patent number: 4793389
    Abstract: A tree harvester comprises a head boom at the lower free end of which is mounted a tree felling head having a cylindrical cutting knife behind which is formed a storage enclosure for felled trees. The head includes pivotable gripping arms for pressing the cylindrical knife against the trees to be felled and for moving them and holding them in the storage enclosure.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: December 27, 1988
    Assignee: Roger Sigouin
    Inventors: Roger Sigouin, Michel St Pierre