Patents by Inventor Pierre Laguionie

Pierre Laguionie 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).

  • Pressurized fluid supply circuit comprising a variable displacement pump
    Patent number: 4596517
    Abstract: The invention relates to a supply circuit supplying two pressure-using members in parallel, by means of a power-regulated variable displacement pump. Manipulators, associated to the distributors controlling said pressure-using members are fed with a fluid whose pressure can vary as a function of the speed driving the pump and are of a potentiometric type. The invention finds an application in the supply circuit of a hydraulic shovel.
    Type: Grant
    Filed: January 29, 1985
    Date of Patent: June 24, 1986
    Assignee: Poclain
    Inventor: Pierre Laguionie