Patents by Inventor Julien Saint Laurent

Julien Saint Laurent 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: 11148158
    Abstract: An agricultural sprayer system includes a solution circuit including solution lines and a fluid pump to pump a solution from the solution tank through the solution lines to the spray nozzles; an air circuit including air lines and a source of compressed air to selectively introduce air pressure into the solution circuit; and a control system including a controller configured to control flow of the solution and the compressed air. The controller is configured to perform a spray cycle in which, during a primary portion, a control valve is controlled to isolate the air circuit from the solution circuit so that the solution is pumped by the fluid pump from the solution tank to the spray nozzles, and in which, during an air pressure application portion, the control valve is controlled so that the solution is forced through the solution circuit by the compressed air.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: October 19, 2021
    Assignee: DEERE & COMPANY
    Inventors: Joshua J. Engelbrecht, Pierre van Raaij, Julien Saint Laurent
  • Publication number: 20180369851
    Abstract: An agricultural sprayer system includes a solution circuit including solution lines and a fluid pump to pump a solution from the solution tank through the solution lines to the spray nozzles; an air circuit including air lines and a source of compressed air to selectively introduce air pressure into the solution circuit; and a control system including a controller configured to control flow of the solution and the compressed air. The controller is configured to perform a spray cycle in which, during a primary portion, a control valve is controlled to isolate the air circuit from the solution circuit so that the solution is pumped by the fluid pump from the solution tank to the spray nozzles, and in which, during an air pressure application portion, the control valve is controlled so that the solution is forced through the solution circuit by the compressed air.
    Type: Application
    Filed: April 25, 2018
    Publication date: December 27, 2018
    Inventors: Joshua J. Engelbrecht, Pierre van Raaij, Julien Saint Laurent