Patents Assigned to TECHNETICS GROUP FRANCE SAS
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Patent number: 11933403Abstract: A metallic sealing assembly between a rotating shaft and a fixed frame comprises: a flexible metallic seal having two tori, inner and outer, that are concentric and of different average diameters, comprising a metal envelope which encases and holds the inner and outer tori; a shaft rotating about an axis of rotation, comprising an annular shoulder against which the seal comes to press; a counter-face, comprising a contact face against which the seal comes to press; a wedge block positioned around the rotating shaft such that the seal is held between the wedge block and the contact face, the wedge block mounted to slide on the rotating shaft; a metal part which forms a cap through which the rotating shaft passes and which is secured to the frame and/or to the counter-face, the rotating shaft being free to rotate with respect to the cap and axially secured to the cap.Type: GrantFiled: April 1, 2019Date of Patent: March 19, 2024Assignees: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, TECHNETICS GROUP FRANCE SASInventors: Laurent Guimet, Jean-François Juliaa, Michel Lefrancois, Christophe Darles, Olivier Constant
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Patent number: 11821517Abstract: A static metal seal comprising an outer sealing layer, wherein the outer sealing layer comprises a textured surface that is configured to come into contact with the surfaces that are to be sealed, the textured surface comprising a network of depressions spaced apart from one another on the textured surface, wherein the depressions are blind, do not pass all the way through the outer sealing layer, and do not communicate with one another.Type: GrantFiled: December 13, 2019Date of Patent: November 21, 2023Assignees: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, TECHNETICS GROUP FRANCE SASInventors: Florent Ledrappier, Jean-François Juliaa, Marin Teissier, Michel Lefrancois, Thierry David, Tony Zaouter
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Patent number: 11644103Abstract: A metal sealing system for a triple eccentricity butterfly valve includes a dynamic metal seal, having a metal core surrounded by an external coating; a metal case with an external surface that has an inclined conical shape, including a first housing inside which the dynamic metal seal is mounted; a metal cover fixed to the metal case to allow it to close by flush fitting of the upper or lower faces of the metal cover and the metal case, the metal case having a second housing into which the metal cover fits, the dynamic metal seal being located between the metal cover and the surface of the metal case defining the first housing.Type: GrantFiled: September 15, 2021Date of Patent: May 9, 2023Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, TECHNETICS GROUP FRANCE SASInventors: Laurent Guimet, Michel Lefrancois, Etienne Boyer, Marin Tessier, Jean-Jacques Darque, Bertrand Thevenon
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Publication number: 20220090685Abstract: The main purpose of the invention is a metal sealing system (6) for a triple eccentricity butterfly valve (30) comprising: a dynamic metal seal (21), comprising a metal core surrounded by an external coating; a metal case (15) with an external surface that has an inclined conical shape, comprising a first housing inside which the dynamic metal seal (21) is mounted; a metal cover (29) fixed to the metal case (15) to allow it to close by flush fitting of the upper or lower faces of the metal cover (29) and the metal case (15), the metal case comprising a second housing into which the metal cover fits, the dynamic metal seal (21) being located between the metal cover (29) and the surface of the metal case (15) defining the first housing.Type: ApplicationFiled: September 15, 2021Publication date: March 24, 2022Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, TECHNETICS GROUP FRANCE SASInventors: Laurent GUIMET, Michel LEFRANCOIS, Etienne BOYER, Marin TESSIER, Jean-Jacques DARQUE, Bertrand THEVENON
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Patent number: 10428959Abstract: An annular assembly for compressing a seat of a ball-valve, including: a valve body or insert, including an annular internal counter-bore that defines an inner counter-bore diameter; a sleeve inserted into the annular internal counter-bore, defining at least one outer diameter of the sleeve; the body or the insert defining with the sleeve an annular housing in which the assembly includes, in succession: a downstream stack of head rings, an annular head shim, a stack of mechanisms of compression, an annular base shim, and an upstream stack of base rings.Type: GrantFiled: October 13, 2015Date of Patent: October 1, 2019Assignees: COMMISSARIAT A L'ENERGIE ATOMTQUE ET AUX ENERGIES ALTERNATIVES, TECHNETICS GROUP FRANCE SASInventors: Laurent Guimet, Florent Ledrappier, Michel Lefrancois
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Patent number: 9890860Abstract: The disclosure relates to a seal inserted between two elements having different coefficients of thermal expansion, the seal includes a first and a second metallic contact portion spaced along an axial stacking direction orthogonal with respect to a radial direction. Tight connection means between the first and second contact portions allow a relative movement between the first and second contact portions along the radial direction. A first and a second sliding part are respectively coupled in translation along the radial direction with the first and second contact portions and are stacked so as to be able to slide in relation to each other along the radial direction.Type: GrantFiled: October 18, 2010Date of Patent: February 13, 2018Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, TECHNETICS GROUP FRANCE SASInventors: Magali Reytier, Jacques Besson, Lionel Bruguiere, Jean-François Juliaa
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Publication number: 20170299071Abstract: An annular assembly for compressing a seat of a ball-valve, including: a valve body or insert, including an annular internal counter-bore that defines an inner counter-bore diameter; a sleeve inserted into the annular internal counter-bore, defining at least one outer diameter of the sleeve; the body or the insert defining with the sleeve an annular housing in which the assembly includes, in succession: a downstream stack of head rings, an annular head shim, a stack of mechanisms of compression, an annular base shim, and an upstream stack of base rings.Type: ApplicationFiled: October 13, 2015Publication date: October 19, 2017Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, TECHNETICS GROUP FRANCE SASInventors: Laurent GUIMET, Florent LEDRAPPIER, Michel LEFRANCOIS
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Patent number: 9157531Abstract: The seal comprises a casing made of two portions (1, 2) crimped into one another with an accurate hermetic position adjustment at interfaces (15, 6b) and a composite structure comprising inside the casing an advantageously flexible and resilient core (24) and a winding (20) of brush bristles. This structure directly extends facing internal faces (9, 10) facing each other in the casing, which compresses the same and has an arcuate shape having a slightly higher radius of curvature. The composite structure is held at an accurate position, firmly but free of constraint.Type: GrantFiled: September 9, 2013Date of Patent: October 13, 2015Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, TECHNETICS GROUP FRANCE SASInventors: Laurent Guimet, Frédéric Sauvinet, Olivier Constant, Philippe Reynaud, Christophe Mengelle, Michel Lefrancois
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Publication number: 20150226331Abstract: The seal comprises a casing made of two portions (1, 2) crimped into one another with an accurate hermetic position adjustment at interfaces (15, 6b) and a composite structure comprising inside the casing an advantageously flexible and resilient core (24) and a winding (20) of brush bristles. This structure directly extends facing internal faces (9, 10) facing each other in the casing, which compresses the same and has an arcuate shape having a slightly higher radius of curvature. The composite structure is held at an accurate position, firmly but free of constraint.Type: ApplicationFiled: September 9, 2013Publication date: August 13, 2015Applicant: Technetics Group France SASInventors: Laurent Guimet, Frédéric Sauvinet, Olivier Constant, Philippe Reynaud, Christophe Mengelle, Michel Lefrancois
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Patent number: 8840117Abstract: A static sealing element (1) includes an elastic tapered washer (10) the deformation of which enables a force to be transmitted, a casing (18) to establish the seal, and two supporting washers (27 and 28) which transmit the forces originating from the elastic washer (10) to the curved edges (20, 21) of the casing (18) so as to exert on them a pressure which maintains the seal. The casing (18) made thus be manufactured from a ductile material, but one which is less deformable than the customary elastomers.Type: GrantFiled: April 11, 2011Date of Patent: September 23, 2014Assignees: Commissariat a l'Energie Atomique et aux Energies Alternatives, Technetics Group France SASInventors: Laurent Guimet, Ludovic Morice, Michel Lefrancois, Jean-François Juliaa
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Publication number: 20140030633Abstract: The seal comprises a centre layer (5) of electrically insulating material, two metal outer layers (6, 7) bearing patterns (8, 9) able to be deformed by flattening out on the bearing faces (2, 3) to be sealed, so as to hold the seal while providing a sealing barrier to the connections, and intermediate layers (10, 11) of glassy material to provide connection thereto while absorbing deformations due to differential expansions. Applicable to high temperature electrolysis or fuel cells.Type: ApplicationFiled: April 19, 2012Publication date: January 30, 2014Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, TECHNETICS GROUP FRANCE SASInventors: Francois Palermo, Lionel Bruguiere
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Publication number: 20130292910Abstract: Compression between two blocks (5, 6) forming a dynamic seal (13) between a rotor (2) and a stator (1) is applied by an inflatable seal (7) located in a groove. When blocks (5 and 6) must be cuttable, in other words divided into two parts to be assembled around the shaft (2), the originally linear seal (7) is wound in the groove and its ends are in contact with each other. It applies a uniform compression around the circumference and its placement does not require major disassembly of the equipment.Type: ApplicationFiled: October 25, 2011Publication date: November 7, 2013Applicant: TECHNETICS GROUP FRANCE SASInventors: Grégory Tocheport, Jean-Jacques Darque, David Lombard, Stéphane Guignard, Laurent Guimet, Bruno Rouchouze, Jean-François Juliaa
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Publication number: 20130026715Abstract: A static sealing element (1) includes an elastic tapered washer (10) the deformation of which enables a force to be transmitted, a casing (18) to establish the seal, and two supporting washers (27 and 28) which transmit the forces originating from the elastic washer (10) to the curved edges (20, 21) of the casing (18) so as to exert on them a pressure which maintains the seal. The casing (18) made thus be manufactured from a ductile material, but one which is less deformable than the customary elastomers.Type: ApplicationFiled: April 11, 2011Publication date: January 31, 2013Applicant: TECHNETICS GROUP FRANCE SASInventors: Laurent Guimet, Ludovic Morice, Michel Lefrancois, Jean-Francois Juliaa
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Publication number: 20120258384Abstract: The invention relates to a seal (10) inserted between two elements (4?, 6) having different coefficients of thermal expansion, said seal comprising: a first and a second metallic contact portion (16a, 16b) spaced along an axial stacking direction (8) orthogonal with respect to a radial direction (20); tight connection means (14) between the portions (16a, 16b), allowing a relative movement between same along a radial direction; and a first and a second sliding part (24a, 24b) respectively coupled in translation along the radial direction with the portions (16a, 16b), and stacked so as to be able to slide in relation to each other along the radial direction.Type: ApplicationFiled: October 18, 2010Publication date: October 11, 2012Applicant: TECHNETICS GROUP FRANCE SASInventors: Magali Reytier, Jacques Besson, Lionel Bruguiere, Jean-François Juliaa