Patents by Inventor Simon Clavaguera

Simon Clavaguera 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: 11396025
    Abstract: The invention consists of a continuous sorting method and device which highlights the trajectory differences to which fibers of different form factors and particles charged under the joint influence of electrical forces and a centrifugal force could be subjected. Thus, according to the sorting method, the conditions exploit this difference in order to recover/collect the fibers separated from the non-fibrous particles present in the same initial aerosol or to sort fibers exhibiting different form factors.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: July 26, 2022
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Simon Clavaguera, Michel Pourprix, Francois Tardif
  • Patent number: 10814335
    Abstract: The invention relates to a method and device for collecting particles which may be present in an aerosol. The invention consists in electrostatically collecting all the particles in an aerosol, but uncoupling mechanisms of particle charging by unipolar ion diffusion, for charging then collecting the finest particles, from particle charging by a corona effect electrical field, for charging then collecting the biggest particles in a different collection zone from the collection zone for the finest particles. The invention also relates to the use of such a device as ionisation chamber or for evaluating the exposure of workers or consumers to nanoparticles.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: October 27, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Simon Clavaguera, Arnaud Guiot, Michel Pourprix, Nicolas Daniel
  • Patent number: 10799883
    Abstract: The invention relates to a method for the selective purification of aerosols. The invention consists in electrostatically collecting all of the particles present in an aerosol, but with separation of the mechanisms on one hand for charging particles by unipolar ion diffusion in order to charge and then collect the finest particles, and on the other hand for charging particles by means of Corona discharge in order to charge and then collect the largest particles on a substrate different from the substrate for collecting the finest particles.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: October 13, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Michel Pourprix, Christophe Brouard, Simon Clavaguera
  • Publication number: 20200290058
    Abstract: The invention consists of a continuous sorting method and device which highlights the trajectory differences to which fibers of different form factors and particles charged under the joint influence of electrical forces and a centrifugal force could be subjected. Thus, according to the sorting method, the conditions exploit this difference in order to recover/collect the fibers separated from the non-fibrous particles present in the same initial aerosol or to sort fibers exhibiting different form factors.
    Type: Application
    Filed: October 11, 2018
    Publication date: September 17, 2020
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Simon CLAVAGUERA, Michel POURPRIX, Francois RARDIF
  • Publication number: 20200261923
    Abstract: The invention consists of a continuous sorting method and device which highlights the trajectory differences to which fibers of different form factors and particles charged under the joint influence of electrical and gravitational forces could be subjected. Thus, according to the sorting method, the conditions exploit this difference in order to recover/collect the fibers separated from the non-fibrous particles present in the same initial aerosol or to sort fibers exhibiting different form factors.
    Type: Application
    Filed: October 11, 2018
    Publication date: August 20, 2020
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Simon CLAVAGUERA, Michel POURPRIX, Francois TARDIF
  • Patent number: 10675639
    Abstract: The invention relates to a method and device for collecting nanoparticles which may be present in an aerosol. The invention consists of electrostatically collecting nanoparticles contained in an aerosol by a mechanism of particle charging by unipolar ion diffusion, followed by the application of a field without a corona effect, which makes it possible to deposit the particles in concentric rings on different parts of a single flat substrate oriented orthogonally to the aerosol circulation direction. The biggest particles are deposited towards the centre of the flat substrate and the finest particles towards the periphery of the flat substrate. The invention also relates to a method of operation and to the use of such a device for evaluating the exposure of workers or consumers to nanoparticles.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: June 9, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Simon Clavaguera, Michel Pourprix, Quentin Renot
  • Patent number: 10401263
    Abstract: A device for picking and transporting nano-objects present in an aerosol for analyzing includes a porous sampling filter configured to trap the nano-objects. The device also includes a cassette having means for holding the filter in a cavity within the cassette, an inlet orifice configured to allow aspirated aerosol to pass through, and an outlet orifice configured to pass the filtered aerosol, rid of the nano-objects trapped upstream of the inlet orifice of the cassette. A module of the device is configured to collect, by inertial impaction, the particles of a size above a threshold value and to allow aerosol containing particles of a size smaller than the threshold value to pass. The module is further configured to reduce, during picking, emission noise of the aspiration means of the picking device on which the cassette is fixed.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: September 3, 2019
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Simon Clavaguera, Philippe Berne, Arnaud Guiot, Mathias Reynes
  • Patent number: 10190951
    Abstract: An assembly for picking and transporting nano-objects, comprises a cassette having first and second components, which are provided with means of mutual assembly and with means for holding the filter. The first and second components define, when the components are in an assembled configuration, a cavity in which the filter is housed and held therein. The means of mutual assembly comprise first clipping means secured to the first component, second clipping means secured to the second component and able to collaborate with the first clipping means so as to clip the two components together. A picking device comprises suction means to which the cassette is able to be removably attached. The first and second clipping means are configured such that they are not accessible from the outside when the components are in the assembled configuration with the cassette fixed to the device.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: January 29, 2019
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, PARTICLEVER
    Inventors: Simon Clavaguera, Christophe Brouard, Guillaume Hebert, Eric Decolin, Raphael De Thoury, Bertrand Faure
  • Publication number: 20180200727
    Abstract: The invention relates to a method and device for collecting particles which may be present in an aerosol. The invention consists in electrostatically collecting all the particles in an aerosol, but uncoupling mechanisms of particle charging by unipolar ion diffusion, for charging then collecting the finest particles, from particle charging by a corona effect electrical field, for charging then collecting the biggest particles in a different collection zone from the collection zone for the finest particles. The invention also relates to the use of such a device as ionisation chamber or for evaluating the exposure of workers or consumers to nanoparticles.
    Type: Application
    Filed: July 28, 2016
    Publication date: July 19, 2018
    Inventors: Simon CLAVAGUERA, Arnaud GUIOT, Michel POURPRIX, Nicolas DANIEL
  • Publication number: 20180200728
    Abstract: The invention relates to a method for the selective purification of aerosols. The invention consists in electrostatically collecting all of the particles present in an aerosol, but with separation of the mechanisms on one hand for charging particles by unipolar ion diffusion in order to charge and then collect the finest particles, and on the other hand for charging particles by means of Corona discharge in order to charge and then collect the largest particles on a substrate different from the substrate for collecting the finest particles.
    Type: Application
    Filed: July 28, 2016
    Publication date: July 19, 2018
    Inventors: Michel POURPRIX, Christophe BROUARD, Simon CLAVAGUERA
  • Publication number: 20180200726
    Abstract: The invention relates to a method and device for collecting nanoparticles which may be present in an aerosol. The invention consists of electrostatically collecting nanoparticles contained in an aerosol by a mechanism of particle charging by unipolar ion diffusion, followed by the application of a field without a corona effect, which makes it possible to deposit the particles in concentric rings on different parts of a single flat substrate oriented orthogonally to the aerosol circulation direction. The biggest particles are deposited towards the centre of the flat substrate and the finest particles towards the periphery of the flat substrate. The invention also relates to a method of operation and to the use of such a device for evaluating the exposure of workers or consumers to nanoparticles.
    Type: Application
    Filed: July 28, 2016
    Publication date: July 19, 2018
    Inventors: Simon CLAVAGUERA, Michel POURPRIX, Quentin RENOT
  • Patent number: 9849414
    Abstract: A filtration assembly for filtering nanoparticles includes a filter having pores that can retain nanoparticles likely to be found in an air flow passing through the filter and a filter support including two parts. A lower base-forming part of the filter support includes a peripheral bearing surface on which the filter can rest. An upper ring-shaped part of the filter support is designed to be mounted around the bearing surface of the base. By mounting the ring around the bearing surface of the base it is possible to tension the filter radially to the direction of mounting. The mounting clearance between the ring and the bearing surface of the base is dimensioned such as to maintain the filter resting on the bearing surface under mechanical stress by means of pinching, in a direction radial to the mounting direction.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: December 26, 2017
    Assignees: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, NANOINSPECT
    Inventors: Simon Clavaguera, Eric Decolin, Arnaud Guiot, Guillaume Hebert, Sebastien Jacquinot, Sylvie Motellier
  • Patent number: 9833750
    Abstract: The present invention relates to a method for impregnating a filter having pores suitable for retaining particles within them that may be present in a flow of air suitable for passing through the filter, according to which the filter made up of a polymer membrane is impregnated with one or more organometallic salts by applying a treatment using supercritical CO2, the metal M of each salt being chosen from among the group of rare earths, yttrium, scandium, chromium, or a combination thereof. The invention also relates to the obtained filter and an associated method for the collection and quantitative analysis of nanoparticles.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: December 5, 2017
    Assignee: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Sylvie Motellier, Simon Clavaguera, Korian Lhaute, Olivier Poncelet
  • Publication number: 20170102297
    Abstract: A device for picking and transporting nano-objects present in an aerosol for analyzing includes a porous sampling filter configured to trap the nano-objects. The device also includes a cassette having means for holding the filter in a cavity within the cassette, an inlet orifice configured to allow aspirated aerosol to pass through, and an outlet orifice configured to pass the filtered aerosol, rid of the nano-objects trapped upstream of the inlet orifice of the cassette. A module of the device is configured to collect, by inertial impaction, the particles of a size above a threshold value and to allow aerosol containing particles of a size smaller than the threshold value to pass. The module is further configured to reduce, during picking, emission noise of the aspiration means of the picking device on which the cassette is fixed.
    Type: Application
    Filed: June 3, 2015
    Publication date: April 13, 2017
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Simon CLAVAGUERA, Philippe BERNE, Arnaud GUIOT, Mathias REYNES
  • Publication number: 20170097287
    Abstract: An assembly for picking and transporting nano-objects, comprises a cassette having first and second components, which are provided with means of mutual assembly and with means for holding the filter. The first and second components define, when the components are in an assembled configuration, a cavity in which the filter is housed and held therein. The means of mutual assembly comprise first clipping means secured to the first component, second clipping means secured to the second component and able to collaborate with the first clipping means so as to clip the two components together. A picking device comprises suction means to which the cassette is able to be removably attached. The first and second clipping means are configured such that they are not accessible from the outside when the components are in the assembled configuration with the cassette fixed to the device.
    Type: Application
    Filed: June 3, 2015
    Publication date: April 6, 2017
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, NANOINSPECT
    Inventors: Simon CLAVAGUERA, Christophe BROUARD, Guillaume HEBERT, Eric DECOLIN, Raphael DE THOURY, Bertrand FAURE
  • Patent number: 9457348
    Abstract: A device for sampling and transporting nano-objects for analysis thereof. A cassette portion of the device includes two parts with mutual assembly mechanisms between them including a clipping mechanism configured not to be accessible from outside in assembled position of the parts. Therefore, any inopportune opening of the cassette and thus extraction of the sampling filter accommodated in the cassette somewhere else than the place intended for the analysis are avoided.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: October 4, 2016
    Assignees: Commissariat à l'énergie atomique et aux énergies alternatives, NANOBADGE
    Inventors: Simon Clavaguera, Eric Decolin, Guillaume Hebert, Jean-Loup Rechatin, Francois Tardif
  • Publication number: 20150336059
    Abstract: The present invention relates to a method for impregnating a filter having pores suitable for retaining particles within them that may be present in a flow of air suitable for passing through the filter, according to which the filter made up of a polymer membrane is impregnated with one or more organometallic salts by applying a treatment using supercritical CO2, the metal M of each salt being chosen from among the group of rare earths, yttrium, scandium, chromium, or a combination thereof. The invention also relates to the obtained filter and an associated method for the collection and quantitative analysis of nanoparticles.
    Type: Application
    Filed: December 24, 2013
    Publication date: November 26, 2015
    Inventors: Sylvie MOTELLIER, Simon CLAVAGUERA, Korian LHAUTE, Olivier PONCELET
  • Publication number: 20150251119
    Abstract: The invention relates to a filtration assembly for filtering nanoparticles, including: a filter having pores that can retain nanoparticles likely to be found in an air flow passing through the filter; and a filter support including two parts. A lower base-forming part includes a peripheral bearing surface on which the filter can rest. An upper ring-shaped part is designed to be mounted around the bearing surface of the base. By mounting the ring around the bearing surface of the base it is possible to tension the filter radially to the direction of mounting, the mounting clearance between the ring and the bearing surface of the base being dimensioned such as to maintain the filter resting on the bearing surface under mechanical stress by means of pinching, in a direction radial to the mounting direction.
    Type: Application
    Filed: June 12, 2013
    Publication date: September 10, 2015
    Inventors: Simon Clavaguera, Eric Decolin, Arnaud Guiot, Guillaume Hebert, Sebastien Jacquinot, Sylvie Motellier
  • Publication number: 20140286836
    Abstract: A device for sampling and transporting nano-objects for analysis thereof. A cassette portion of the device includes two parts with mutual assembly mechanisms between them including a clipping mechanism configured not to be accessible from outside in assembled position of the parts. Therefore, any inopportune opening of the cassette and thus extraction of the sampling filter accommodated in the cassette somewhere else than the place intended for the analysis are avoided.
    Type: Application
    Filed: October 5, 2012
    Publication date: September 25, 2014
    Applicants: NANOBADGE, Commissariat à l'energie atomique et aux ene alt
    Inventors: Simon Clavaguera, Eric Decolin, Guillaume Hebert, Jean-Loup Rechatin, Francois Tardif
  • Publication number: 20130244334
    Abstract: The present invention relates to a method and device for the detecting and/or electrically quantifying organophosphorus compounds as a gas or solution. The device includes: an electrical device including a source electrode and a drain electrode, separated by a semiconductor material; and a device for detecting positive charges between the two electrodes. One surface of the semiconductor material is in contact with a polymer material having at least one receptor group including: 1) a function X capable of reacting with the detectable organophosphorus compound, to form an intermediate grouping —Z; and 2) a function Y capable of reacting with —Z to form a positively charged ring. The polymer material includes molecular imprint cavities, with geometrical and chemical configuration allowing the detectable organophosphorus compounds to penetrate into said polymer material. The invention can be used in the field of detecting and/or quantifying organophosphorus compounds.
    Type: Application
    Filed: July 4, 2011
    Publication date: September 19, 2013
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Simon Clavaguera, Alexandre Carella, Caroline Celle, Jean-Pierre Simonato