Patents by Inventor Gilles Chanvillard
Gilles Chanvillard 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: 10113327Abstract: A section of concrete intended to form a mast for a windmill, the section including a first portion including a first flange, a second portion including a second flange, a prestressing device including at least one visible part located between the first flange and the second flange, a first attaching device arranged to be connected to the first flange, and/or a second attaching device arranged to be connected to the second flange.Type: GrantFiled: November 30, 2015Date of Patent: October 30, 2018Assignee: LAFARGEInventors: Svatopluk Dobrusky, Gilles Chanvillard
-
Publication number: 20170314285Abstract: A section of concrete intended to form a mast for a windmill, the section including a first portion including a first flange, a second portion including a second flange, a prestressing device including at least one visible part located between the first flange and the second flange, a first attaching device arranged to be connected to the first flange, and/or a second attaching device arranged to be connected to the second flange.Type: ApplicationFiled: November 30, 2015Publication date: November 2, 2017Inventors: Svatopluk DOBRUSKY, Gilles CHANVILLARD
-
Patent number: 8394192Abstract: A lightweight structural concrete includes a hydraulic binder; effective water; a superplasticizer; and aggregates; the concrete having a density in the fresh state varying from 1.40 to a Dmax value calculated according to formula (I) Dmax=1.58+(a×AM) in which “a” represents a coefficient for which the value is equal to 1; “AM” represents the mass percentage of the amorphous materials contained in 1 m3 of fresh concrete; the concrete having a maximum fresh state density Dmax less than or equal to 1.85; the concrete having a Weffective/L ratio varying from 0.19 to 0.Type: GrantFiled: October 10, 2008Date of Patent: March 12, 2013Assignee: LafargeInventors: Sylvain Meille, Gilles Chanvillard, Arnaud Schwartzentruber, Emmanuel Bonnet
-
Patent number: 8303708Abstract: A ductile ultra-high performance concrete which includes in relative parts by weight: 100 of Portland cement; 50 to 200 of a sand having a single grading with a D1O to D90 between 0.063 and 5 mm, or a mixture of sands, the finest sand having a D1O to D90 between 0.063 and 1 mm and the coarsest sand having a D1O to D90 between 1 and 5 mm; 0 to 70 of a particulate pozzolanic or non-pozzolanic material or a mixture thereof having a mean particle size less than 15 ?m; 0.1 to 10 of a water-reducing superplasticizer; 10 to 30 of water; and 0.5 to 5% by volume relative to the volume of the hardened composition of glass fibers having an aspect ratio of 6 to 120.Type: GrantFiled: December 19, 2008Date of Patent: November 6, 2012Assignee: LafargeInventors: Stéphane Rigaud, Philippe Fonollosa, Gilles Chanvillard
-
Patent number: 8177930Abstract: A process for the production of a structural element in which at least two units of concrete are assembled by gluing, the compressive strength of the concrete being greater than 80 MPa. A structural element includes at least two glued units of concrete, the compressive strength of the concrete being greater than 80 MPa.Type: GrantFiled: December 14, 2007Date of Patent: May 15, 2012Assignee: LaFargeInventor: Gilles Chanvillard
-
Patent number: 8080103Abstract: A demolding composition, to be used for the production of parts of hydraulic-setting material, includes at least one oil and at least one calcium salt, calcium borates and calcium salts of fatty acids being excluded from the at least one calcium salt. A process for the preparation of a part molded in hydraulic-setting material, includes coating sides of an appropriate mold with the demolding composition; introducing a freshly-prepared hydraulic-setting composition; and removing the part from the mold after hardening and optional curing of the composition.Type: GrantFiled: December 14, 2007Date of Patent: December 20, 2011Assignee: LafargeInventors: Stéphane Venon, Gilles Chanvillard, Isabelle Dubois-Brugger, Christophe Levy, Vincent Teissier
-
Publication number: 20100326326Abstract: A ductile ultra-high performance concrete which includes in relative parts by weight: 100 of Portland cement; 50 to 200 of a sand having a single grading with a D1O to D90 between 0.063 and 5 mm, or a mixture of sands, the finest sand having a D1O to D90 between 0.063 and 1 mm and the coarsest sand having a D1O to D90 between 1 and 5 mm; 0 to 70 of a particulate pozzolanic or non-pozzolanic material or a mixture thereof having a mean particle size less than 15 ?m; 0.1 to 10 of a water-reducing superplasticizer; 10 to 30 of water; and 0.5 to 5% by volume relative to the volume of the hardened composition of glass fibres having an aspect ratio of 6 to 120.Type: ApplicationFiled: December 19, 2008Publication date: December 30, 2010Applicant: LAFARGEInventors: Stéphane Rigaud, Philippe Fonollosa, Gilles Chanvillard
-
Publication number: 20100212551Abstract: A lightweight structural concrete includes a hydraulic binder; effective water; a superplasticizer; and aggregates; the concrete having a density in the fresh state varying from 1.40 to a Dmax value calculated according to formula (I) Dmax=1.58+(a×AM) in which “a” represents a coefficient for which the value is equal to 1; “AM” represents the mass percentage of the amorphous materials contained in 1 m3 of fresh concrete; the concrete having a maximum fresh state density Dmax less than or equal to 1.85; the concrete having a Weffective/L ratio varying from 0.19 to 0.Type: ApplicationFiled: October 10, 2008Publication date: August 26, 2010Applicant: LAFARGEInventors: Sylvain Meille, Emmanuel Bonnet, Gilles Chanvillard, Arnaud Schwartzentruber
-
Publication number: 20100107928Abstract: A demoulding composition, to be used for the production of parts of hydraulic-setting material, includes at least one oil and at least one calcium salt, calcium borates and calcium salts of fatty acids being excluded from the at least one calcium salt. A process for the preparation of a part moulded in hydraulic-setting material, includes coating sides of an appropriate mould with the demoulding composition; introducing a freshly-prepared hydraulic-setting composition; and removing the part from the mould after hardening and optional curing of the composition.Type: ApplicationFiled: December 14, 2007Publication date: May 6, 2010Applicant: LafageInventors: Stephane Venon, Gilles Chanvillard, Isabelle Dubois-Brugger, Christophe Levy, Vincent Teissier
-
Publication number: 20100068533Abstract: A process for the production of a structural element in which at least two units of concrete are assembled by gluing, the compressive strength of the concrete being greater than 80 MPa. A structural element includes at least two glued units of concrete, the compressive strength of the concrete being greater than 80 MPa.Type: ApplicationFiled: December 14, 2007Publication date: March 18, 2010Inventor: Gilles Chanvillard
-
Publication number: 20090305019Abstract: A concrete composition includes: a hydraulic binder component which includes cement, particulate materials having a size of less than 200 ?m, and an expansive agent; granular materials having a size (D50) greater than 200 ?m; a shrinkage reducing agent; a superplasticizer; and water; wherein the water to hydraulic binder ratio is from 0.1 to 0.5 by weight, the shrinkage reducing agent is present at 0.1 to 1.0% by weight of binder, and the particulate materials are present in a concentration of from 10 to 80% by total weight of binder.Type: ApplicationFiled: September 19, 2007Publication date: December 10, 2009Applicant: LafargeInventors: Gilles Chanvillard, Sandra Boivin, Jean-Philippe Thierry, Frederic Guimbal, Denis Garcia