Patents by Inventor Denis Frigon

Denis Frigon 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).

  • Thumb for scooping tool arm
    Patent number: 6742291
    Abstract: The thumb is used on a hydraulic tool arm equipped with a scooping tool for selective co-operation between the scooping tool and the thumb. The thumb has a pair of generally parallel U-shaped lateral forks defining an opening therebetween for engagement of the tool arm between the forks. The forks define an inner end having a transverse coupling member for operative coupling of the thumb to the tool arm for movement of the thumb about the tool arm, and an outer free end opposite the inner end. The forks are significantly curved about a common axis.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: June 1, 2004
    Inventors: Denis Frigon, Frédéric Sylvain
  • Thumb for scooping tool arm
    Publication number: 20030024138
    Abstract: The thumb is used on a hydraulic tool arm equipped with a scooping tool for selective co-operation between the scooping tool and the thumb. The thumb has a pair of generally parallel U-shaped lateral forks defining an opening therebetween for engagement of the tool arm between the forks. The forks define an inner end having a transverse coupling member for operative coupling of the thumb to the tool arm for movement of the thumb about the tool arm, and an outer free end opposite the inner end. The forks are significantly curved about a common axis.
    Type: Application
    Filed: May 24, 2002
    Publication date: February 6, 2003
    Inventors: Denis Frigon, Frederic Sylvain