Patents by Inventor Normand Harnois

Normand Harnois 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).

  • Folding blade
    Patent number: 6324775
    Abstract: A mid-chassis, underbody plow or scrapper blade is mounted under a vehicle chassis to be folded upwardly for storage when not in use. The blade is also mounted to permit the outer ends of the blade to move vertically. Pneumatic pressure actuators mounted on either side of the center line of the vehicle apply pressure through pivot arms to the respective ends of the blade to control the scrapping action. The support structure for the blade swings upwardly to achieve a two-stage storage which increases the elevation of the blade when folded.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: December 4, 2001
    Assignee: 177197 Canada LTEE
    Inventors: Normand Harnois, Bertrand Houle, Yannick Morin