Patents by Inventor Gilles Petraud

Gilles Petraud 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).

  • Seed drill element having improved topsoiling means
    Patent number: 6895876
    Abstract: The seed drill element comprises a frame, a seed tank, a seed dispenser, and a member for opening a furrow in the ground. The seed drill element further comprises mechanism for bearing against the ground, having a rear block and/or a front block, with each block having at least one wheel and an arm hinged to the frame, and also topsoiling mechanism including a rear link, two front links, and an intermediate link. The topsoiling mechanism also comprise a mechanism for moving the rear link relative to a reference part connected to the frame. In addition, the seed drill element includes a locking mechanism so that the topsoiling mechanism can be configured for front topsoiling, for rear topsoiling, and/or for rocker topsoiling.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: May 24, 2005
    Assignee: Ribouleau Monosem
    Inventors: Dominique Bergere, Gilles Petraud
  • Seed drill element having improved topsoiling means
    Publication number: 20030183141
    Abstract: The seed drill element comprises a frame, a seed tank, a seed dispenser, and a member for opening a furrow in the ground. The seed drill element further comprises both means for bearing against the ground, comprising a rear block and/or a front block, with each block being constituted by at least one wheel and an arm hinged to the frame, and also topsoiling means comprising a rear link, two front links, and an intermediate link. The topsoiling means also comprise a mechanism for moving the rear link relative to a reference part connected to the frame. In addition, the seed drill element has for selective locking means so that the topsoiling means can be configured for front topsoiling, for rear topsoiling, and/or for rocker topsoiling.
    Type: Application
    Filed: March 18, 2003
    Publication date: October 2, 2003
    Inventors: Dominique Bergere, Gilles Petraud
  • Trencher with plural digging wheels having adjustable inclination
    Patent number: 4535555
    Abstract: The machine includes a frame on which is suspended on a shaft a support for two inclined cutters. The support includes slots of different inclination in which are mounted guide rollers connected to housings in which inclined cutters are rotatively mounted. A jack shifts the housings and consequently adjusts the inclination of the cutters. An additional cutter is located in front of the inclined cutters and is adapted to effect a rough cutting of the trench. A smoothing shoe is openable to a variable extent with the inclination of the cutters.
    Type: Grant
    Filed: February 28, 1984
    Date of Patent: August 20, 1985
    Assignee: Cerimon
    Inventor: Gilles Petraud