Patents by Inventor Paul LEPLAY

Paul LEPLAY 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: 11628404
    Abstract: A monolithic membrane-type filtration structure for filtering liquids, includes a support formed of a porous inorganic material of permeability Ks, the support having a tubular overall shape with a main axis, an upstream base, a downstream base, a peripheral wall delimiting an internal part and a plurality of passages parallel to the main axis of the support, formed in the internal part of the support, a membrane of permeability Km and of mean thickness tm covering the internal surface of the passages; the external hydraulic diameter of the structure satisfying the relationship Øf=?×[A+B×log10 (Ks×tm/Km)]; in which ? is a coefficient between 0.85 and 1.15, and A=?21570×entint2?18.6×Dh+19.0×eint?2.5×eext+0.1244 B=?11760×Dh×eint+9.7×eint+3.1×eext+0.04517. Dh is the mean hydraulic diameter of the passages, eint is the minimum thickness of the internal walls between the passages, eext is the minimum thickness of the peripheral wall of the filter.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: April 18, 2023
    Assignee: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Sébastien Pinson, Paul Leplay, Malte Moeller, Ronald Neufert, Michael Faber
  • Publication number: 20230099412
    Abstract: A computer-implemented method for measuring the three-dimensional geometry of a mineral glass-based glazing during or just after a temperature shaping operation. The method implements digital processing and calculations, based on the principles of stereocorrelation, of digital images of a random light pattern projected onto the surface of a transparent glazing. It makes it possible in particular to determine the shape or the three-dimensional geometry of a transparent glazing, the surface of which not be totally opacified and/or which radiates under the effect of temperature.
    Type: Application
    Filed: February 9, 2021
    Publication date: March 30, 2023
    Inventors: Céline WISS, Paul LEPLAY, Adrien CARLU, Vincent Marc GLEIZE, Flavien FREMY
  • Patent number: 11384984
    Abstract: Thermal storage unit including: a receptacle including orifices allowing a heat-transfer fluid to be introduced into and extracted, and a stack of bricks, arranged in the receptacle in superposed strata, each stratum having lower and upper large faces and defining a plurality of ducts opening via lower and upper openings, the stack including a pair of strata of a lower and upper stratum, the upper and lower large faces of the lower and upper stratum being separated to define a passage, placing an upper opening of a lower duct of the lower stratum in fluidic communication with at least one lower opening, entirely offset with respect to the upper opening, of at least one upper duct of the upper stratum, the lower large face of the upper stratum closing off, at least partially, the upper opening, when the upper opening is observed, along its axis, from the lower duct.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: July 12, 2022
    Assignee: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Benoit Watremetz, Thierry Dupin, Paul Leplay
  • Publication number: 20200384419
    Abstract: A monolithic membrane-type filtration structure for filtering liquids, includes a support formed of a porous inorganic material of permeability Ks, the support having a tubular overall shape with a main axis, an upstream base, a downstream base, a peripheral wall delimiting an internal part and a plurality of passages parallel to the main axis of the support, formed in the internal part of the support, a membrane of permeability Km and of mean thickness tm covering the internal surface of the passages; the external hydraulic diameter of the structure satisfying the relationship Øf=?×[A+B×log10 (Ks×tm/Km)]; in which ? is a coefficient between 0.85 and 1.15, and A=?21570×entint2?18.6×Dh+19.0×eint?2.5×eext+0.1244 B=?11760×Dh×eint+9.7×eint+3.1×eext+0.04517. Dh is the mean hydraulic diameter of the passages, eint is the minimum thickness of the internal walls between the passages, eext is the minimum thickness of the peripheral wall of the filter.
    Type: Application
    Filed: November 29, 2018
    Publication date: December 10, 2020
    Inventors: Sébastien PINSON, Paul LEPLAY, Malte MOELLER, Ronald NEUFERT, Michael FABER
  • Publication number: 20200156008
    Abstract: A filtration structure with a membrane for filtering liquids, includes a monolith including a support formed from a porous inorganic material of permeability Ks, the support having a tubular general shape with a main axis, an upstream face, a downstream face, a peripheral surface and an internal part; a plurality of channels parallel to the main axis of the support, formed in the internal part of the support, the channels being separated from each other by inner walls formed from the porous inorganic material; the channels being blocked at one or other of their upstream or downstream ends in the direction of circulation of the liquid, to define, respectively, inlet channels and outlet channels for the liquid, so as to force the liquid to pass through the porous walls separating the inlet and outlet channels, and a membrane covering the inner surface of at least the inlet channels.
    Type: Application
    Filed: May 31, 2018
    Publication date: May 21, 2020
    Inventors: Paul LEPLAY, Adrien VINCENT
  • Publication number: 20180361321
    Abstract: A monolithic membrane filter for the filtration of liquids includes a support formed from a porous inorganic material of permeability Ks, the support exhibiting a tubular shape having a main axis, an upstream base, a downstream base, a peripheral surface and an internal portion; channels parallel to the main axis of the support, formed in the internal portion of the support, the channels separated from one another by internal walls formed from the porous inorganic material; a formed in the internal portion of the support and opening onto the peripheral surface so that the filter has an external surface formed by the peripheral surface of the support and the surface of said at least one slot; and a membrane of permeability Km and of mean thickness tm covering the internal surface of the channels.
    Type: Application
    Filed: December 14, 2016
    Publication date: December 20, 2018
    Inventor: Paul LEPLAY
  • Publication number: 20180231316
    Abstract: Thermal storage unit including: a receptacle including orifices allowing a heat-transfer fluid to be introduced into and extracted, and a stack of bricks, arranged in the receptacle in superposed strata, each stratum having lower and upper large faces and defining a plurality of ducts opening via lower and upper openings, the stack including a pair of strata of a lower and upper stratum, the upper and lower large faces of the lower and upper stratum being separated to define a passage, placing an upper opening of a lower duct of the lower stratum in fluidic communication with at least one lower opening, entirely offset with respect to the upper opening, of at least one upper duct of the upper stratum, the lower large face of the upper stratum closing off, at least partially, the upper opening, when the upper opening is observed, along its axis, from the lower duct.
    Type: Application
    Filed: September 29, 2015
    Publication date: August 16, 2018
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Benoit WATREMETZ, Thierry DUPIN, Paul LEPLAY