Patents by Inventor Gérald Prima
Gérald Prima 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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Publication number: 20230339424Abstract: Gas generator comprising: a chamber with an outlet port, breakable sealing means. pressurized gas stored in the chamber, an insert nozzle positioned in the chamber, comprising at least three intermediate orifices and positioned between the gas outlet and at least some of the pressurized gas, characterized in that the insert nozzle is arranged to deform after the breakable sealing means are ruptured, during the application of a pressure difference between a downstream face and an upstream face of the insert nozzle exerted by said at least some of the pressurized gas.Type: ApplicationFiled: April 14, 2023Publication date: October 26, 2023Inventor: Gerald PRIMA
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Patent number: 11458926Abstract: A disc-shaped pyrotechnic gas generator includes a housing with a plurality of diffusion holes. A pyrotechnic substance is arranged in the housing. A filter is arranged in the housing. A containment member is arranged in the housing between the pyrotechnic substance and the filter. A drainage member is arranged in the housing between the pyrotechnic substance and the containment member. The filter is to provide support to a supported portion of the containment member at a start of operation of the gas generator.Type: GrantFiled: June 28, 2017Date of Patent: October 4, 2022Assignee: Autoliv Development ABInventor: Gerald Prima
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Patent number: 11292424Abstract: Gas generator for a safety system, comprising: at least one pyrotechnic substance arranged to produce gases; a first part; a second part; a third part; and a fourth part separate from the previous parts, the first part and the second part being friction-welded to the third part. The gas generator is characterised in that the fourth part comprises: a first interface for positioning with the first part, and a second interface for positioning with the second part, such as to temporarily block at least one degree of freedom between the first and second parts in order to allow the first and second parts to be simultaneously friction-welded to the third part.Type: GrantFiled: December 22, 2017Date of Patent: April 5, 2022Assignee: Autoliv Development ABInventors: Gerald Prima, Ludovic Pogeant, Matthew A. Cox, Kevin Smith
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Publication number: 20210016740Abstract: Gas generator for a safety system, comprising: at least one pyrotechnic substance arranged to produce gases; a first part; a second part; a third part; and a fourth part separate from the previous parts, the first part and the second part being friction-welded to the third part. The gas generator is characterised in that the fourth part comprises: a first interface for positioning with the first part, and a second interface for positioning with the second part, such as to temporarily block at least one degree of freedom between the first and second parts in order to allow the first and second parts to be simultaneously friction-welded to the third part.Type: ApplicationFiled: December 22, 2017Publication date: January 21, 2021Inventors: Gerald PRIMA, Ludovic POGEANT, Matthew A. COX, Kevin SMITH
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Patent number: 10549714Abstract: A gas generator includes at least one pyrotechnic substance, at least one subassembly formed at least of a first component and a second component, and at least one third component fixed to at least one of the first component and of the second component. The this component and one of the first component and of the second component each comprise an indexing interface arranged to temporarily block at least two degrees of freedom between the third component of the one of the first component and of the second component.Type: GrantFiled: December 16, 2016Date of Patent: February 4, 2020Assignee: AUTOLIV DEVELOPMENT ABInventors: Gerald Prima, Sebastien Cornec
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Publication number: 20190184931Abstract: A disc-shaped pyrotechnic gas generator includes a housing with a plurality of diffusion holes. A pyrotechnic substance is arranged in the housing. A filter is arranged in the housing. A containment member is arranged in the housing between the pyrotechnic substance and the filter. A drainage member is arranged in the housing between the pyrotechnic substance and the containment member. The filter is to provide support to a supported portion of the containment member at a start of operation of the gas generator.Type: ApplicationFiled: June 28, 2017Publication date: June 20, 2019Applicant: Autoliv Development ABInventor: Gerald PRIMA
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Publication number: 20190001917Abstract: A gas generator includes at least one pyrotechnic substance, at least one subassembly formed at least of a first component and a second component, and at least one third component fixed to at least one of the first component and of the second component. The this component and one of the first component and of the second component each comprise an indexing interface arranged to temporarily block at least two degrees of freedom between the third component of the one of the first component and of the second component.Type: ApplicationFiled: June 15, 2018Publication date: January 3, 2019Applicant: AUTOLIV DEVELOPMENT ABInventors: Gerald PRIMA, Sebastien CORNEC
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Patent number: 8720946Abstract: A gas generator has two pyrotechnic charges in two chambers having openings for gas outlet to the outside. Only the first chamber is provided with an igniter for first charge. The chambers are separated by a third wall with a through hole for permanent gas communication, sealed in an initial state by a cap. The cap is configured to be broken under the pressure of the combustion gases from first charge to keep the hole opened permanently and allow the combustion gases from the first charge to go via the hole kept permanently opened from a first chamber to a second chamber, where these gases induce the combustion of charge.Type: GrantFiled: April 15, 2011Date of Patent: May 13, 2014Assignee: Autoliv Development ABInventors: Gérald Prima, Sébastien Kermarrec, Maxime Lejeune, Gildas Clech
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Patent number: 8720945Abstract: A gas generator includes a pyrotechnic charge contained in a chamber delimited by a wall and by two transversal walls. At least one of the walls comprises at least one through hole. A covering sheet in the form of a box is located facing the through hole. A seal gasket is provided between the sheet and one of the walls. The seal gasket is positioned between the first tubular part of the covering sheet and the wall for ensuring the seal between the box and the wall towards the through hole.Type: GrantFiled: April 15, 2011Date of Patent: May 13, 2014Assignee: Autoliv Development ABInventors: Gérald Prima, Sébastien Kermarrec, Maxime Lejeune, Philippe Moullec
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Patent number: 8573645Abstract: A gas generator includes an initiator having a case, two electrodes and a cap having a wall delimiting an aperture for insertion of the case, a part delimiting an aperture for access to the electrodes and a retaining part made of plastic material overmolded into the aperture between the initiator, the cap and the part. The wall includes, near the aperture and the protrusion retaining the cap, a second protrusion for supporting the mold in a support direction having a component extending from the bottom toward the aperture, the second protrusion having an outer edge at least partially not covered by the part for use as a support surface in said support direction for a mold to be used for overmolding.Type: GrantFiled: May 30, 2011Date of Patent: November 5, 2013Assignee: Autoliv Development ABInventors: Wilfried Lefevre, Thierry Maisonnette, Marie-Hélène Bischoff-Barre, Benoit Sable, Gérald Prima, Christophe Gatoux
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Publication number: 20130068123Abstract: A gas generator includes an initiator having a case, two electrodes and a cap having a wall delimiting an aperture for insertion of the case, a part delimiting an aperture for access to the electrodes and a retaining part made of plastic material overmoulded into the aperture between the initiator, the cap and the part. The wall includes, near the aperture and the protrusion retaining the cap, a second protrusion for supporting the mould in a support direction having a component extending from the bottom toward the aperture, the second protrusion having an outer edge at least partially not covered by the part for use as a support surface in said support direction for a mould to be used for overmoulding.Type: ApplicationFiled: May 30, 2011Publication date: March 21, 2013Applicant: AUTOLIV DEVELOPMENT ABInventors: Wilfried Lefevre, Thierry Maisonnette, Marie-Hélène Bischoff Barre, Benoit Sable, Gérald Prima, Christophe Gatoux
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Publication number: 20130036934Abstract: A gas generator has two pyrotechnic charges in two chambers having openings for gas outlet to the outside. Only the first chamber is provided with an igniter for first charge. The chambers are separated by a third wall with a through hole for permanent gas communication, sealed in an initial state by a cap. The cap is configured to be broken under the pressure of the combustion gases from first charge to keep the hole opened permanently and allow the combustion gases from the first charge to go via the hole kept permanently opened from a first chamber to a second chamber, where these gases induce the combustion of charge.Type: ApplicationFiled: April 15, 2011Publication date: February 14, 2013Applicant: AUTOLIV DEVELOPMENT ABInventors: Gérald Prima, Sébastien Kermarrec, Maxime Lejeune, Gildas Clech
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Publication number: 20130039814Abstract: A gas generator includes a pyrotechnic charge contained in a chamber delimited by a wall and by two transversal walls. At least one of the walls comprises at least one through hole. A covering sheet in the form of a box is located facing the through hole. A seal gasket is provided between the sheet and one of the walls. The seal gasket is positioned between the first tubular part of the covering sheet and the wall for ensuring the seal between the box and the wall towards the through hole.Type: ApplicationFiled: April 15, 2011Publication date: February 14, 2013Applicant: AUTOLIV DEVELOPMENT ABInventors: Gérald Prima, Sébastien Kermarrec, Maxime Lejeune, Philippe Moullec