Patents by Inventor Pierre Petit
Pierre Petit 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: 11857912Abstract: A process for producing a purified gas stream having impurities, using a production unit for producing a gas stream and a storage reservoir. The process includes producing a first gas stream by means of the production unit. Storing at least a portion of the first gas stream in the storage reservoir. Extracting, from the storage reservoir, a second gas stream corresponding to at least one portion of the first stream polluted by the impurities. Purifying the second gas stream by transfer of at least one portion of the impurities contained in the second gas stream into the first gas stream. And recovery of the purified gas stream at the output of the purification.Type: GrantFiled: March 7, 2019Date of Patent: January 2, 2024Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventors: Christian Monereau, David Frimat, Vincent Gueret, Pierre Petit
-
Patent number: 11819796Abstract: A method for producing oxygen from air using vacuum swing adsorption by means of a unit including at least two adsorbers each following, with an offset a pressure cycle, with a decompression step including at least a co-current first decompression sub-step for the partial balancing of pressure with the other adsorber which is performing counter-current recompression by means of a balancing valve, and, at least for one cycle out of three, a dead time sub-step which succeeds the first decompression sub-step, the method including a pressure of X bar at the end of the first decompression sub-step for the cycles that do not have a dead time sub-step, and a pressure of X bar at the end of the dead time sub-step, opening the balancing valve identically during the first decompression sub-step and the dead time sub-step, for the cycles that do have a dead time sub-step.Type: GrantFiled: February 25, 2019Date of Patent: November 21, 2023Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventors: Guillaume Rodrigues, François Darrigade, Patrick Le Bot, Pierre Petit, Stéphane Pusiol, Maxime Perez
-
Publication number: 20230158444Abstract: The invention relates to a method for regulating a unit for separating a gas stream, having P adsorbers, where P?2, each following a PSA-type adsorption cycle with a phase time shift, the method involving the steps of operating the unit according to the nominal cycle when the required flow rate is equal to a nominal flow rate or optionally when the required flow rate is higher than the nominal flow rate, and operating the unit according to the reduced cycle when the required flow rate is lower than or equal to a predetermined flow rate, the predetermined flow rate being lower than the nominal flow rate.Type: ApplicationFiled: November 22, 2022Publication date: May 25, 2023Inventors: Maxime PEREZ, Guillaume RODRIGUES, Christian MONEREAU, Stéphane PUSIOL, Pierre PETIT
-
Patent number: 11629746Abstract: The invention concerns a unit (210) for a locking device, comprising: a nut (212) comprising two coaxial taps in opposite directions; and a ring (213); said ring including a third tap (38); the first (18) and third (38) taps being capable of engaging with a single first thread (22); said ring including a second thread (40) capable of engaging with the second tap (20) of the nut. The unit further comprises a washer (214) configured (274) so as to be inserted around one (212) of the nut and the ring, the washer comprising an elastic engagement means (272) for engaging with the other (213) of the ring and the nut in an installation position of the unit, so as to prevent the ring and the nut from rotating relative to each other.Type: GrantFiled: September 25, 2018Date of Patent: April 18, 2023Assignee: LISI AEROSPACEInventors: Martial Broucke, Gildas Boleis, Alan Philippe, Pierre Petit
-
Patent number: 11519450Abstract: The invention relates to a locking device (300) comprising: a shaft (24) comprising a first thread (22); and a nut (12) and a ring (13) to be assembled on the shaft; the nut comprising a first inner thread (18) defining a first radial clearance with the first thread of the shaft; the nut further comprising a second inner thread (20) in the opposite direction to the first inner thread, the ring (13) comprising a second thread (40) defining a second radial clearance with the second inner thread of the nut; the ring comprising a third inner thread (38) defining a third radial clearance with the first thread of the shaft. The inner threads and the first and second threads have an identical and constant thread pitch; and each of the second and third radial clearances is greater than the first radial clearance.Type: GrantFiled: September 26, 2018Date of Patent: December 6, 2022Assignee: LISI AEROSPACEInventors: Gildas Boleis, Alan Philippe, Pierre Petit, Martial Broucke
-
Patent number: 11466723Abstract: The present invention relates to a unit (10) for a locking device, including: a nut (12) comprising first (18) and second (20) coaxial taps in opposite directions; and a ring (13); said ring including a third tap (38); the first (18) and third (38) taps being capable of engaging with a single first thread (22); said ring including a second thread (40) capable of engaging with the second tap (20) of the nut. A portion (33) of the ring, projecting relative to the second thread (40), includes a through-hole (60); and a surface (16) of the nut includes a visual marking, configured to be opposite the hole (60) when the nut and the ring are in an installation position, and separated from said hole when the nut and the ring are outside said installation position.Type: GrantFiled: September 26, 2018Date of Patent: October 11, 2022Assignee: LISI AEROSPACEInventors: Gildas Boleis, Alan Philippe, Pierre Petit, Martial Broucke
-
Publication number: 20210039039Abstract: A method for producing oxygen from air using vacuum swing adsorption by means of a unit comprising at least two adsorbers each following, with an offset a pressure cycle, with a decompression step comprising at least a co-current first decompression sub-step for the partial balancing of pressure with the other adsorber which is performing counter-current recompression by means of a balancing valve, and, at least for one cycle out of three, a dead time sub-step which succeeds the first decompression sub-step, the method including a pressure of X bar at the end of the first decompression sub-step for the cycles that do not have a dead time sub-step, and a pressure of X bar at the end of the dead time sub-step, opening the balancing valve identically during the first decompression sub-step and the dead time sub-step, for the cycles that do have a dead time sub-step.Type: ApplicationFiled: February 25, 2019Publication date: February 11, 2021Inventors: Guillaume RODRIGUES, François DARRIGADE, Patrick LE BOT, Pierre PETIT, Stéphane PUSIOL, Maxime PEREZ
-
Publication number: 20210023498Abstract: A process for producing a purified gas stream having impurities, using a production unit for producing a gas stream and a storage reservoir. The process includes producing a first gas stream by means of the production unit. Storing at least a portion of the first gas stream in the storage reservoir. Extracting, from the storage reservoir, a second gas stream corresponding to at least one portion of the first stream polluted by the impurities. Purifying the second gas stream by transfer of at least one portion of the impurities contained in the second gas stream into the first gas stream. And recovery of the purified gas stream at the output of the purification.Type: ApplicationFiled: March 7, 2019Publication date: January 28, 2021Inventors: Christian MONEREAU, David FRIMAT, Vincent GUERET, Pierre PETIT
-
Publication number: 20200240457Abstract: The invention relates to a locking device (300) comprising: a shaft (24) comprising a first thread (22); and a nut (12) and a ring (13) to be assembled on the shaft; the nut comprising a first inner thread (18) defining a first radial clearance with the first thread of the shaft; the nut further comprising a second inner thread (20) in the opposite direction to the first inner thread, the ring (13) comprising a second thread (40) defining a second radial clearance with the second inner thread of the nut; the ring comprising a third inner thread (38) defining a third radial clearance with the first thread of the shaft. The inner threads and the first and second threads have an identical and constant thread pitch; and each of the second and third radial clearances is greater than the first radial clearance.Type: ApplicationFiled: September 26, 2018Publication date: July 30, 2020Applicant: LISI AEROSPACEInventors: GILDAS BOLEIS, ALAN PHILIPPE, PIERRE PETIT, MARTIAL BROUCKE
-
Publication number: 20200224708Abstract: The invention concerns a unit (210) for a locking device, comprising: a nut (212) comprising two coaxial taps in opposite directions; and a ring (213); said ring including a third tap (38); the first (18) and third (38) taps being capable of engaging with a single first thread (22); said ring including a second thread (40) capable of engaging with the second tap (20) of the nut. The unit further comprises a washer (214) configured (274) so as to be inserted around one (212) of the nut and the ring, the washer comprising an elastic engagement means (272) for engaging with the other (213) of the ring and the nut in an installation position of the unit, so as to prevent the ring and the nut from rotating relative to each other.Type: ApplicationFiled: September 25, 2018Publication date: July 16, 2020Applicant: LISI AEROSPACEInventors: MARTIAL BROUCKE, BOLEIS GILDAS, ALAN PHILIPPE, PIERRE PETIT
-
Publication number: 20200224707Abstract: The present invention relates to a unit (10) for a locking device, including: a nut (12) comprising first (18) and second (20) coaxial taps in opposite directions; and a ring (13); said ring including a third tap (38); the first (18) and third (38) taps being capable of engaging with a single first thread (22); said ring including a second thread (40) capable of engaging with the second tap (20) of the nut. A portion (33) of the ring, projecting relative to the second thread (40), includes a through-hole (60); and a surface (16) of the nut includes a visual marking, configured to be opposite the hole (60) when the nut and the ring are in an installation position, and separated from said hole when the nut and the ring are outside said installation position.Type: ApplicationFiled: September 26, 2018Publication date: July 16, 2020Applicant: LISI AEROSPACEInventors: GILDAS BOLEIS, ALAN PHILIPPE, PIERRE PETIT, MARTIAL BROUCKE
-
Publication number: 20190064854Abstract: A technique provides for management of multiple flow assurance functionalities in a pipe-in-pipe system. A station for use in a subsea pipe-in-pipe system may comprise an inner flow conduit to provide an inner flow passage for a first fluid and an outer flow conduit to provide an annular flow passage for a second fluid. The station also may comprise a network of valves and conduits coupled to the inner flow conduit and to the outer flow conduit. The valves are individually adjustable to enable selection of multiple flow assurance functionalities so as to ensure continued fluid flow capability following a plug. Depending on the parameters of a given application, a plurality of the stations may be combined with a plurality of pipe-in-pipe sections to form a suitable subsea pipe-in-pipe system.Type: ApplicationFiled: August 25, 2017Publication date: February 28, 2019Inventors: Hosam M. Abu-Zeid, Alexi Santiago, Pierre Petit, Deandrick Williams
-
Patent number: 7689424Abstract: This invention relates to a distributed speech recognition method comprising at least one user terminal and at least one server which can communicate with each other by means of a telecommunication network. The inventive method comprises the following steps consisting in: at the user terminal, attempting to associate a saved form with the signal to be recognized and, independently of said step, transmitting a signal to the server, indicating the signal to be recognized; and, at the server, attempting to associate a saved form with the signal received.Type: GrantFiled: March 8, 2004Date of Patent: March 30, 2010Assignee: France TelecomInventors: Jean Monne, Jean-Pierre Petit, Patrick Brisard
-
Publication number: 20080287344Abstract: The invention concerns the use of monohydroxy or polyhydroxy amino acids, and the lactone forms thereof for making medicines with insulin-analogue and/or insulin-sensitizing effects on peripheral tissues targeted by insulin, and more particularly the use thereof for making medicines for treating and preventing insulin-resistance.Type: ApplicationFiled: July 21, 2008Publication date: November 20, 2008Applicant: Innodia Inc.Inventors: Gerard Ribes, Mohammed Taouis, Roger Pierre Petit, Christophe Broca, Yves Sauvaire, Bernard Pau
-
Patent number: 7402611Abstract: The invention concerns the use of monohydroxy or polyhydroxy amino acids, and the lactone forms thereof for making medicines with insulin-analogue and/or insulin-sensitizing effects on peripheral tissues targeted by insulin, and more particularly the use thereof for making medicines for treating and preventing insulin-resistance.Type: GrantFiled: August 23, 2000Date of Patent: July 22, 2008Assignee: Innodia Inc.Inventors: Gérard Ribes, Mohammed Taouis, Roger Pierre Petit, Christophe Broca, Yves Sauvaire
-
Patent number: 7387839Abstract: The subject of the invention is a substrate provided on at least part of at least one of its faces with a coating having photocatalytic properties, containing photocatalytic titanium oxide, especially crystallized in the anatase form, in an essentially mineral binder comprising at least one semiconducting metal oxide. The subject of the invention is also a process for obtaining said substrate, especially by thermal decomposition of precursors or by a vacuum deposition technique.Type: GrantFiled: May 15, 2002Date of Patent: June 17, 2008Assignee: Saint-Gobain Glass FranceInventors: Lethicia Gueneau, Mauricette Rondet, Ronan Garrec, Jean-Pierre Petit, Alain Denoyelle, Yves Wouters
-
Patent number: 7319093Abstract: 2-Substituted-5?-O-(1-boranotriphosphate)adenosine derivatives having at position 2 a radical R1 selected from the group consisting of H; halogen; O-hydrocarbyl; S-hydrocarbyl; NR3R4; and hydrocarbyl optionally substituted by halogen, CN, SCN, NO2, OR3, SR3 or NR3R4; wherein R3 and R4 are each independently H or hydrocarbyl or R3 and R4 together with the nitrogen atom to which they are attached form a saturated or unsaturated heterocyclic ring optionally containing 1-2 further heteroatoms selected from oxygen, nitrogen and sulfur, and pharmaceutically acceptable salts or diastereoisomers thereof or a mixture of diastereoisomers, are useful for treatment of type 2 diabetes.Type: GrantFiled: October 23, 2002Date of Patent: January 15, 2008Assignees: Bar-Ilan University, University of MontpellierInventors: Bilha Fischer, Victoria Kleiman-Nahum, Pierre Petit
-
Patent number: 7253631Abstract: The invention relates to a method of determining the complex impedance Z(fm) of a non-steady electrochemical system, comprising the following steps consisting in: bringing the system to a selected voltage condition and applying a sinusoidal signal with frequency fm thereto; immediately thereafter, measuring successive values for voltage and current at regular time intervals ?T; calculating the discrete Fourier transforms for voltage (E(f)) and current (I(f)), the voltage transform being calculated for the single frequency fm of the sinusoidal signal and the current transform being calculated for frequency fm and for two adjacent frequencies fm?1 and fm+1 on either side of frequency fm; and calculating the impedance using the following formula: Z(fm)=E(fm)/I*(fm), wherein I* denotes a corrected current such that Re[I*(fm)]=Re[I*(fm)]?(Re[I(fm+1)]+Re[I(fm?1)]2, Im[I*(fm)]=Im[I(fm)]?Im[I(fm+1)]+Im[I(fm?1)])/2.Type: GrantFiled: July 11, 2003Date of Patent: August 7, 2007Assignee: Institut National Polytechnique de GrenobleInventors: Bogdan Petrescu, Jean-Pierre Petit, Jean-Claude Poignet
-
Publication number: 20070061147Abstract: This invention relates to a distributed speech recognition method comprising at least one user terminal and at least one server which can communicate with each other by means of a telecommunication network. The inventive method comprises the following steps consisting in: at the user terminal, attempting to associate a saved form with the signal to be recognized and, independently of said step, transmitting a signal to the server, indicating the signal to be recognized; and, at the server, attempting to associate a saved form with the signal received.Type: ApplicationFiled: March 8, 2004Publication date: March 15, 2007Inventors: Jean Monne, Jean-Pierre Petit, Patrick Brisard
-
Publication number: 20060195323Abstract: This invention relates to a distributed speech recognition system. The inventive system consists of: at least one user terminal comprising means for obtaining an audio signal to be recognized, parameter calculation means and control means which are used to select a signal to be transmitted; and a server comprising means for receiving the signal, parameter calculation means, recognition means and control means which are used to control the calculation means and the recognition means according to the signal received.Type: ApplicationFiled: March 8, 2004Publication date: August 31, 2006Inventors: Jean Monne, Jean-Pierre Petit, Patrick Brisard