Patents by Inventor Arnaud Legrand

Arnaud Legrand 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).

  • Hydraulic installation and method for operating the same
    Patent number: 10907608
    Abstract: The present invention generally relates to hydraulic machinery, such as hydraulic turbines. More specifically, the invention is directed to optimizing power consumption when the turbine is used in condenser mode. The present invention provides a novel hydraulic installation where the reduction of pressure in the spiral case during condenser mode operations is more efficient, limiting the power consumption if compared to state-of-the-art installations.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: February 2, 2021
    Inventors: Renaud Guillaume, Pierre Yves Lowys, Arnaud Legrand, Philippe Girin
  • HYDRAULIC INSTALLATION AND METHOD FOR OPERATING THE SAME
    Publication number: 20180252198
    Abstract: The present invention generally relates to hydraulic machinery, such as hydraulic turbines. More specifically, the invention is directed to optimizing power consumption when the turbine is used in condenser mode. The present invention provides a novel hydraulic installation where the reduction of pressure in the spiral case during condenser mode operations is more efficient, limiting the power consumption if compared to state-of-the-art installations.
    Type: Application
    Filed: September 9, 2016
    Publication date: September 6, 2018
    Inventors: Renaud GUILLAUME, Pierre Yves LOWYS, Arnaud LEGRAND, Philippe GIRIN
  • TRIMMER LINE
    Publication number: 20120219761
    Abstract: A trimmer line may have a protrusion that is receivable in a recess to maintain the trimmer line in a coiled condition without packaging.
    Type: Application
    Filed: December 22, 2011
    Publication date: August 30, 2012
    Inventors: Arnaud Legrand, Emmanuel Legrand