Patents by Inventor Christophe Bunel
Christophe Bunel 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).
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Patent number: 11731315Abstract: The invention concerns a preform for a container made of plastic material, comprising a cylindrical body that extends along an axis of revolution of the preform and a bottom that closes the cylindrical body. The bottom has an outer profile with a central portion and a curved portion joining the central portion to the cylindrical body. The central portion has, in longitudinal cross-section, a first concave section. The curved portion has successively, in longitudinal cross-section, from the first concave section towards the cylindrical body, a first convex or frustoconical section, a second concave section and a second convex or frustoconical section.Type: GrantFiled: August 13, 2019Date of Patent: August 22, 2023Assignee: SIDEL PARTICIPATIONSInventors: Christophe Bunel, Laurent Naveau
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Publication number: 20230101346Abstract: The invention relates to a container preform made of plastics material having a body exhibiting symmetry of revolution about a central axis and a bottom closing the body from one of its ends. The bottom having an annular bead forming a standing plane of the preform, and the bottom has an external skin oriented toward the outside of the preform and an internal skin oriented toward the inside of the preform. At least one of the internal skin and the external skin has, radially from the central axis as far as the annular bead, a profile having a break in curvature.Type: ApplicationFiled: February 22, 2021Publication date: March 30, 2023Inventor: Christophe BUNEL
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Publication number: 20210323195Abstract: The invention concerns a preform for a container made of plastic material, comprising a cylindrical body that extends along an axis of revolution of the preform and a bottom that closes the cylindrical body. The bottom has an outer profile with a central portion and a curved portion joining the central portion to the cylindrical body. The central portion has, in longitudinal cross-section, a first concave section. The curved portion has successively, in longitudinal cross-section, from the first concave section towards the cylindrical body, a first convex or frustoconical section, a second concave section and a second convex or frustoconical section.Type: ApplicationFiled: August 13, 2019Publication date: October 21, 2021Inventors: Christophe BUNEL, Laurent NAVEAU
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Patent number: 10882216Abstract: Disclosed is a preform for a plastics container, which includes: a rotationally symmetrical body about a central axis; an open neck which extends in continuation of the body from an upper end of the latter; a bottom which closes the body starting from a lower end of the latter, the bottom being rotationally symmetrical about the central axis and having a central concavity and a protruding bulge around this concavity, the bottom having a thickness E, measured from an external face, that is variable in accordance with three different criteria respectively applied to three sections of the bottom, namely a central section [0; S1], an intermediate section [S1; S2] and a peripheral section [S2; L].Type: GrantFiled: November 17, 2016Date of Patent: January 5, 2021Inventor: Christophe Bunel
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Patent number: 10518465Abstract: Disclosed is a mold for the manufacture, from a blank, of a container having a body and a base provided with a peripheral seat. The mold includes: a wall bearing the impression of the body of the container and provided with an opening; a mold base which is movable relative to the wall between an extended position and a retracted position; the mold base having a peripheral surface which corresponds to a join between the seat and the base of the container and terminates in an edge which is raised with respect to the seat surface. In the extended position of the mold base, the edge extends vertically perpendicular to the opening and, in the retracted position of the mold base, the edge extends near the opening.Type: GrantFiled: October 15, 2015Date of Patent: December 31, 2019Assignee: SIDEL PARTICIPATIONSInventors: Mikael Derrien, Christophe Bunel
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Publication number: 20180361624Abstract: Disclosed is a preform for a plastics container, which includes: a rotationally symmetrical body about a central axis; an open neck which extends in continuation of the body from an upper end of the latter; a bottom which closes the body starting from a lower end of the latter, the bottom being rotationally symmetrical about the central axis and having a central concavity and a protruding bulge around this concavity, the bottom having a thickness E, measured from an external face, that is variable in accordance with three different criteria respectively applied to three sections of the bottom, namely a central section [0; S1], an intermediate section [S1; S2] and a peripheral section [S2; L].Type: ApplicationFiled: November 17, 2016Publication date: December 20, 2018Inventor: Christophe BUNEL
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Patent number: 9757891Abstract: A mold for blow molding a container from a preform, the container including a wall portion and a base including a high standing ring and a central outwardly-inclined invertible diaphragm, the mold including sidewalls forming a counter print of the wall portion of the container (1) and a mold base (36) having an upper surface (37) defining a counter print of the container base, wherein the upper surface (37) includes: an annular peripheral face (43) corresponding to an annular support flange of the container base; a frusto-conical outer face (44) corresponding to an inner portion (11) of the high standing ring, the outer face (44) protruding upwardly with a draft angle (A2) from an inner edge of the peripheral annular face (43) up to a sharp apex (45), and a frusto-conical downwardly inclined inner face (46) corresponding to the invertible diaphragm.Type: GrantFiled: January 22, 2014Date of Patent: September 12, 2017Assignee: SIDEL PARTICIPATIONSInventors: Christophe Bunel, Florian Godet
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Publication number: 20170239846Abstract: Preform (1) made of a plastic material for the manufacturing of a container (2) by blow molding or stretch-blow molding, the preform (1) including a sidewall (20) extending along a main axis (Z), an open neck (4) and a substantially hemispherical closed bottom (21) having a thickness (T) which varies at least locally around the main axis (Z).Type: ApplicationFiled: October 15, 2015Publication date: August 24, 2017Inventor: Christophe BUNEL
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Publication number: 20170232656Abstract: Disclosed is a mold for the manufacture, from a blank, of a container having a body and a base provided with a peripheral seat. The mold includes: a wall bearing the impression of the body of the container and provided with an opening; a mold base which is movable relative to the wall between an extended position and a retracted position; the mold base having a peripheral surface which corresponds to a join between the seat and the base of the container and terminates in an edge which is raised with respect to the seat surface. In the extended position of the mold base, the edge extends vertically perpendicular to the opening and, in the retracted position of the mold base, the edge extends near the opening.Type: ApplicationFiled: October 15, 2015Publication date: August 17, 2017Inventors: Mikael DERRIEN, Christophe BUNEL
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Publication number: 20150352773Abstract: A mold for blow molding a container from a preform, the container including a wall portion and a base including a high standing ring and a central outwardly-inclined invertible diaphragm, the mold including sidewalls forming a counter print of the wall portion of the container (1) and a mold base (36) having an upper surface (37) defining a counter print of the container base, wherein the upper surface (37) includes: an annular peripheral face (43) corresponding to an annular support flange of the container base; a frusto-conical outer face (44) corresponding to an inner portion (11) of the high standing ring, the outer face (44) protruding upwardly with a draft angle (A2) from an inner edge of the peripheral annular face (43) up to a sharp apex (45), and a frusto-conical downwardly inclined inner face (46) corresponding to the invertible diaphragm.Type: ApplicationFiled: January 22, 2014Publication date: December 10, 2015Inventors: Christophe BUNEL, Florian GODET
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Publication number: 20150328825Abstract: A method of manufacturing a hot-fill container (1) by means of blow molding a preform (16) provided with a wall and a closed bottom (19), said method comprising the steps of: heating the preform (16) at a temperature greater than the glass transition temperature of the plastic; introducing the such heated preform (16) within a mold (32) provided with a mold base (36) and sidewalls (34A, 34B), which sidewalls are heated at a predetermined temperature; blow molding the preform (16) to form the container (1) for subsequent hot-fill applications; wherein: the wall of said preform (16) has a lower end segment (24) of increased thickness and the bottom (19) has a thickness lower than the lower end segment (24), the preform (16) is subjected to a length stretch ratio comprised between 3.4 and 3.9, and a hoop stretch ratio comprised between 3.5 and 3.9.Type: ApplicationFiled: January 22, 2014Publication date: November 19, 2015Applicant: SIDEL PARTICIPATIONSInventors: Christophe BUNEL, Florian GODET
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Publication number: 20140030461Abstract: The invention relates to a preform which includes, centred on a single axis xx?: a neck (5), a cylindrical body (12), and a sealed spheroidal bottom (13), and is defined relative to the dimensions of a predefined bottle model (1) which includes: a bottom (3), a body (2) and a neck (5), said neck (5) of said bottle model (1) being identical to the neck of said preform (11).Type: ApplicationFiled: March 22, 2012Publication date: January 30, 2014Applicant: SIDEL PARTICIPATIONSInventors: Christophe Bunel, Michel Boukobza
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Patent number: 8096434Abstract: A thermoplastic container, in particular a bottle, made by blow-molding or stretch blow-molding of a heated preform and including a bell-shaped convex base with its concavity facing outward and provided with reinforcing impressions projecting inward and radiating around a central recess, the impressions having a trapezoid shape with its smaller dimension located toward the center of the base; the impressions include respective arches which form convex trapezoid segments with concavity facing inward and extending from the seat to the central recess by being connected thereto immediately proximate the upper end of the central recess.Type: GrantFiled: March 20, 2006Date of Patent: January 17, 2012Assignee: Sidel ParticipationsInventors: Christophe Bunel, Laurent Penet
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Publication number: 20100000962Abstract: The invention relates to a vessel (1), mainly a bottle, of a thermoplastic material made by blowing or stretching-blowing a heated perform, the vessel comprising a bottom (2) and a neck (3) connected to a body (4), characterised in that the body (4) includes an axially central portion (5) surrounded by an axially lower portion (6) and an axially upper portion (7) defining a connection area respectively with the bottom (2) and the neck (3), the axially central portion (5) being essentially rigid while the axially upper and lower potions (6, 7) can be essentially deformed and a have shape-memory characteristics so that they can recover their initial shape under the hydrostatic pressure of the liquid content.Type: ApplicationFiled: October 26, 2007Publication date: January 7, 2010Applicant: SIDEL PARTICIPATIONSInventors: Laurent Lepoitevin, Damien Bourne, Christophe Bunel
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Publication number: 20090218308Abstract: A thermoplastic container, in particular a bottle, made by blow-molding or stretch blow-molding of a heated preform and including a bell-shaped convex base with its concavity facing outward and provided with reinforcing impressions projecting inward and radiating around a central recess, the impressions having a trapezoid shape with its smaller dimension located toward the center of the base; the impressions include respective arches which form convex trapezoid segments with concavity facing inward and extending from the seat to the central recess by being connected thereto immediately proximate the upper end of the central recess.Type: ApplicationFiled: March 20, 2006Publication date: September 3, 2009Applicant: SIDEL PARTICIPATIONSInventors: Christophe Bunel, Laurent Penet
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Publication number: 20080211125Abstract: The invention concerns a method for controlling a blow molding machine (18) for making containers (12). The machine (18) comprises a control system (26) and a number of blow molding stations (22) and is characterized in that the control system implements iteratively a control cycle including the following successive phases: a phase of estimating the mass of a significant portion of each container (12); an analysis phase to compare the estimated mass with a reference mass to as to detect mass variations; a correction phase during which the pre-molding and/or drawing and/or blow molding parameters are modified based on the mass variations.Type: ApplicationFiled: January 9, 2006Publication date: September 4, 2008Applicant: SIDEL PARTICIPATIONSInventors: Mikael Derrien, Dominique Martin, Christophe Bunel
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Publication number: 20070222123Abstract: The invention relates to the production of containers (2) comprising a narrow opening and a long body, such as bottles or similar, from polypropylene by means of blow moulding or stretch blow moulding. According to the invention, during the blow moulding or stretch blow moulding step, the polypropylene preform (1) undergoes longitudinal stretching at a ratio (L/1) of between approximately 2 and 3.5 and radial stretching (D/d) at a ratio of between approximately 2 and 3.Type: ApplicationFiled: April 26, 2005Publication date: September 27, 2007Inventors: Christophe Bunel, Laurent Penet
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Patent number: 6423253Abstract: The invention concerns a method whereby in an installation (1, 2, 3) for making containers (200, 300) by blowing blanks (400), for example thermoplastic preforms, the high pressure fluid derived from degassing a container is re-used and injected (14) into a container previously degassed, for example for cooling it or for thoroughly spraying the inside thereof to solidify the material.Type: GrantFiled: January 18, 2000Date of Patent: July 23, 2002Assignee: SidelInventors: Christophe Bunel, Michel Martin