Patents by Inventor Emmanuel BUFFAT

Emmanuel BUFFAT 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: 12529385
    Abstract: A vacuum generator including a cluster of multi-stage venturi cells, each having a nozzle which is sealingly secured in an inlet orifice of a first mixer provided with a first suction orifice, and a second mixer fixed to the first mixer in such a manner that the second mixer extends coaxially to the first mixer and is spaced apart from an outlet orifice of said first mixer in order to form with the same a second suction orifice, characterized in that the first mixers are firmly interconnected by a first frame extending between the first suction orifices and the outlet orifices of the first mixers to form a first sealing surface surrounding said first mixers, and the second mixers are firmly interconnected by a second frame extending between the inlet orifices and the outlet orifices of the second mixers to form a second sealing surface surrounding said second mixers.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: January 20, 2026
    Assignee: COVAL
    Inventors: Emmanuel Buffat, Pierre-Louis Bal, Michel Cecchin, Pierre Milhau
  • Patent number: 12296462
    Abstract: A fluid flow device including a plurality of fluid flow functional modules each fastened on a respective individual base includes: two parallel lateral faces via which the bases are adapted to be placed against one another; a primary channel passing through the base to open out in its two lateral faces; a front face along which the module extends so as to couple an inlet channel of said module with a secondary channel extending in the base; a check valve closing the secondary channel when the base is not provided with a module; and a top face in which there extends a tertiary channel opening out in the primary channel. The device further includes a fastener for fastening the bases to one another, leaktight couplers for coupling the primary channel and the tertiary channel to a source of fluid under pressure.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: May 13, 2025
    Assignee: COVAL
    Inventors: Emmanuel Buffat, Loïc Joguet, Michel Cecchin, Pierre Milhau
  • Publication number: 20240426321
    Abstract: A vacuum generator comprising a cluster of multi-stage venturi cells, each having a nozzle which is sealingly secured in an inlet orifice of a first mixer provided with a first suction orifice (42.5, and a second mixer fixed to the first mixer in such a manner that the second mixer extends coaxially to the first mixer and is spaced apart from an outlet orifice of said first mixer in order to form with the same a second suction orifice, wherein the first mixers are firmly interconnected by a first frame extending between the first suction orifices and the outlet orifices of the first mixers in order to form a first sealing surface surrounding said first mixers, and the second mixers are firmly interconnected by a second frame extending between the inlet orifices and the outlet orifices of the second mixers in order to form a second sealing surface surrounding said second mixers.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 26, 2024
    Inventors: Emmanuel BUFFAT, Pierre-Louis BAL, Michel CECCHIN, Pierre MILHAU
  • Patent number: 12134528
    Abstract: A control device for controlling a pneumatic component includes a compressed air supply circuit for connecting to an inlet of the pneumatic component. The circuit includes a normally closed monostable valve having an inlet for connecting to a compressed air source and an outlet for connecting to the pneumatic component, and a bistable directional valve having both a first port for connecting to the compressed air source and also a second port connected to a first port of a normally passing monostable directional valve, the monostable directional valve having a second port connected to a pneumatic control port of the monostable valve.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: November 5, 2024
    Assignee: COVAL
    Inventors: Emmanuel Buffat, Michel Cecchin, Pierre Milhau
  • Publication number: 20220339799
    Abstract: The invention relates to a fluid flow device comprising a plurality of fluid flow functional modules each fastened on a respective individual base comprising: two parallel lateral faces via which the bases are adapted to be placed against one another in such a manner that when the bases are placed against one another, two of the bases each have one lateral face that is free; a primary fluid transport channel passing through the base to open out in its two lateral faces in identical positions; and a front face along which the module extends so as to couple an inlet channel of said module with a secondary channel extending in the base from the front face and opening out in the primary channel. According to the invention, the device includes fastener means for fastening the bases to one another and leaktight coupling means for coupling the end of the primary channel opening out in one of the lateral faces to a source of fluid under pressure for feeding the modules.
    Type: Application
    Filed: August 26, 2020
    Publication date: October 27, 2022
    Inventors: Emmanuel BUFFAT, Loïc JOGUET, Michel CECCHIN, Pierre MILHAU
  • Publication number: 20210371214
    Abstract: The invention relates to a control device for controlling a pneumatic component, the device including a compressed air supply circuit for connecting to an inlet of the pneumatic component.
    Type: Application
    Filed: October 15, 2019
    Publication date: December 2, 2021
    Inventors: Emmanuel BUFFAT, Michel CECCHIN, Pierre MILHAU