Patents by Inventor Jean-Paul Dupuy
Jean-Paul Dupuy 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: 6848367Abstract: The present invention relates to priming device for the explosive charge of a sub-munition scattered by a carrier, of the type incorporating a firing pin onto which a deployable drag ribbon has been attached, a primer able to be driven by a motor organ and a detonating primer to ignite the explosive charge. This device also comprises self-destruction means for the sub-munition operating after a predetermined delay, such means being activated by the extraction of a self-destruction lock. It is characterized in that the self-destruction lock is integral with the drag ribbon and is therefore extracted by the ribbon during its deployment.Type: GrantFiled: November 6, 2001Date of Patent: February 1, 2005Assignee: Giat IndustriesInventors: Philip Fouqueau, Jean-Paul Dupuy
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Publication number: 20030217664Abstract: The present invention relates to priming device for the explosive charge of a sub-munition scattered by a carrier, of the type incorporating a firing pin onto which a deployable drag ribbon has been attached, a primer able to be driven by a motor organ and a detonating primer to ignite the explosive charge. This device also comprises self-destruction means for the sub-munition operating after a predetermined delay, such means being activated by the extraction of a self-destruction lock. It is characterized in that the self-destruction lock is integral with the drag ribbon and is therefore extracted by the ribbon during its deployment.Type: ApplicationFiled: April 30, 2003Publication date: November 27, 2003Inventors: Philip Fouqueau, Jean-Paul Dupuy
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Patent number: 6474240Abstract: A system for attaching a priming system onto the body of a grenade, including a support integrally fastened to the grenade body and incorporating a thin cylindrical wall whose upper edge is crimped onto the priming system.Type: GrantFiled: March 28, 2001Date of Patent: November 5, 2002Assignee: Giat IndustriesInventors: Patrice Chemiere, Philip Fouqueau, Jean-Paul Dupuy
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Patent number: 5670736Abstract: A priming system for the explosive charge of a sub-munition carried on board a carrier comprises a main firing pin, a primer tube operative to move from a safety position to an armed position, at least two devices to lock the primer tube in the safety position before the sub-munition is ejected, and a self-destruct mechanism operative to destroy the sub-munition after a predetermined delay. A first one of the locking devices is formed of a cam operative to move from a cam safety position, in which it forms a limit stop preventing the primer tube from passing freely into an armed position, to a retracted position in which it allows free passage of the primer tube. The cam carries an auxiliary firing pin to ignite a delay cord of the self-destruct mechanism. A second one of the locking devices engage the primer tube by the percussion tip of the firing pin to hold the primer tube in a safety position.Type: GrantFiled: July 19, 1996Date of Patent: September 23, 1997Assignee: Giat IndustriesInventors: Patrice Chemiere, Jean-Paul Dupuy
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Patent number: 5445077Abstract: An initiation device includes a primer-container system placed inside a casing box able to move from a safety position to an armed position through the action of a motor. The system is immobilized in its security position by at least one lock that is released by a shape memory actuator when the surrounding temperature rises above a given value.Type: GrantFiled: June 1, 1994Date of Patent: August 29, 1995Assignee: Giat IndustriesInventors: Jean-Paul Dupuy, Gilles Halin, Laurent Chauveau, Alain Bonnet
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Patent number: 5440992Abstract: A priming and self-destruct system for a munition having its own rotational movement about a longitudinal axis includes a trigger mounted to pivot about an axis parallel to the rotational axis of the munition under the effect of centrifugal force and against the action of a return spring. The self-destruct system also has a retention device for a secondary firing pin having its own spring in the armed position that is controlled by the trigger when the system is rotating about the axis of the munition. In the event of a malfunction, the secondary firing pin is released by the trigger when the rotation ceases, i.e., when the munition comes to rest on the ground. At that point and without delay, the secondary firing pin pierces the priming system and initiates the munition.Type: GrantFiled: May 17, 1994Date of Patent: August 15, 1995Assignee: Giat IndustriesInventors: Patrice Chemiere, Jean-Paul Dupuy
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Patent number: 5373790Abstract: A mechanical system for self-destruction of a munition, in particular a carrier shell submunition, is provided in a munition having a warhead initiated by a pyrotechnic sequence, a main striker and a priming device composed of a slide movable between a safety position and an armed position and which has a device for priming the charge. The self destruction system includes a secondary striker mounted inside a receptacle of a slide and a control device to release the secondary striker after a preset delay. Secondary striker is integral with a holding element and held abutting a seat by the urging of an arming spring. The control device of the secondary striker has a corrosive agent designed to chemically attack the holding element to release it from its seat. When the holding element is released, secondary striker is translationally moved to contact the detonator to destroy the munition.Type: GrantFiled: June 2, 1993Date of Patent: December 20, 1994Assignee: Giat IndustriesInventors: Patrice H. Chemiere, Jean-Paul A. Dupuy, Bernard F. Bayard, Jean-Pierre Ruet
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Patent number: 5275101Abstract: A pyrotechnic chain igniter device for cargo warhead sub-ammunition including an explosive charge contained in an enclosure, comprising a first striker mobile in a longitudinal bore of a body for striking a primer, a slider carrying the primer, the slider being slidably mounted in a transverse groove in the body and being adapted for sliding between a safety position and an armed position, wherein the safety position is defined by the slider being misaligned with the first striker and the armed position is defined by the primer being substantially aligned with the first striker. The first striker is adapted for striking the primer when the slider is in the armed position and when the sub-ammunition impacts a target. At least one device for blocking the slider in the safety position is provided.Type: GrantFiled: February 3, 1992Date of Patent: January 4, 1994Assignee: GIAT IndustriesInventors: Patrice H. Chemiere, Jean-Paul A. Dupuy, Alain R. Pascal
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Patent number: 5251562Abstract: A device with a stabilizing ribbon fastened to the rear of the body of a bomblet includes a first loop of ribbon with a relatively long lengthwise dimension and a second loop of ribbon with a relatively short lengthwise dimension. The two loops are fastened to the same point on the rear of the body and are rotationally integral with each other. The device improves the deployment of the stabilizing ribbon and the aerodynamic stabilizing and braking of a bomblet.Type: GrantFiled: October 16, 1992Date of Patent: October 12, 1993Assignee: Giat IndustriesInventors: Patrice H. Chemiere, Jean-Paul A. Dupuy
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Patent number: 5206457Abstract: A pyrotechnic chain igniter device for cargo warhead submunition including an explosive charge contained in an enclosure, which includes a striker mobile in a longitudinal bore for striking a primer, a slider carrying the primer, wherein the slider is slidable between a safety position and an armed position. The safety position is defined by the primer being mis-aligned with the striker and the armed position is defined by the primer being substantially aligned with the striker. The device also includes at least one means for blocking the slider in the safety position and a neutralization means including a trigger actuated by a driving means for preventing the slider to slide into the armed position.Type: GrantFiled: July 30, 1990Date of Patent: April 27, 1993Assignee: Giat IndustriesInventors: Alain R. Pascal, Patrice M. Chemiere, Jean-Paul A. Dupuy