公开(公告)号：US11761741B2

公开(公告)日：2023-09-19

申请号：US17627561

申请日：2020-07-16

Applicant: NAVAL GROUP

Inventor： Thibaut De Sarran

IPC: F42B19/12 ,  F41F3/10

CPC classification number: F42B19/12 ,  F41F3/10

Abstract: A projectile including: a shell; a rotating shaft; and a screw which can be rotated by the rotating shaft. The screw and the shell include, respectively, a stop and a counter-stop opposite each other. The screw is capable of sliding axially between a first position, in which a non-zero clearance is provided between the stop and counter-stop, and a second position, in which the stop and counter-stop are in contact. An elastic return element reversibly deformable between a first and a second state of stress which correspond to the first and second positions of the screw, respectively, the stress of the first state being lower than the stress of the second state.

公开(公告)号：US20220316696A1

公开(公告)日：2022-10-06

申请号：US17596728

申请日：2020-06-17

Applicant: NAVAL GROUP

Inventor： Bertrand CLAUZADE

IPC: F22B27/16 ,  F28F9/02 ,  F28F9/00 ,  F03G7/05

Abstract: The present invention relates to an evaporator of a working fluid for an OTEC plant, comprising an elongated evaporator body extending along a main axis, a bundle of evaporators transporting hot water, a sprinkling system arranged in an upper part of the evaporator body, a system for evacuating the fluid in gaseous state and a guide system for the fluid in gaseous state towards the evacuation system. The guide system comprises an elongated cover extending along the main axis, covering the bundle of evaporators and the sprinkling system, and two partitioning means which are arranged at each end of the evaporator body and form on each of these ends a sealed connection between the outer surface of the cover and the inner surface of the evaporator body.

公开(公告)号：US20220315729A1

公开(公告)日：2022-10-06

申请号：US17597298

申请日：2020-07-02

Applicant: NAVAL GROUP

Inventor： Julien BEAUDET ,  Emeline ARNAUD

IPC: C08K3/04 ,  C08J5/04

Abstract: An ablative composite material including a matrix and a reinforcement, characterised in that: the matrix is a phenolic resin or an epoxy resin and the reinforcement is formed of short carbon fibres with a length of between 0.5 mm and 20 mm, and a diameter of between 6 μm and 20 μm.

公开(公告)号：US20220260339A1

公开(公告)日：2022-08-18

申请号：US17611059

申请日：2020-05-13

Applicant: NAVAL GROUP

Inventor： Vincent FAZILLAULT ,  Fabien JAGAILLOUX ,  Geoffrey ARRIGNON ,  Arnaud LAMOTTE

IPC: F41F3/10

Abstract: Underwater craft including means for launching an underwater vehicle using water pressure, including a vehicle-launching tube having a front part and a rear part and the rear part of which is connected to a water distribution tank itself connected to a water tube in which is positioned a piston for delivering water into the rear part of the tube in order to push and eject the vehicle, is characterized in that the piston is associated with a linear electric actuator for moving same.

公开(公告)号：USD940045S1

公开(公告)日：2022-01-04

申请号：US35510434

申请日：2020-09-07

Applicant: NAVAL GROUP

Designer： Serge Philippe

公开(公告)号：US10417895B2

公开(公告)日：2019-09-17

申请号：US15760968

申请日：2016-09-16

Applicant: NAVAL GROUP

Inventor： Céline Drouet ,  Xavier Dal Santo ,  Nicolas Cellier

IPC: G08B21/10 ,  G08B25/00 ,  B63J99/00

Abstract: Disclosed is a method and a device for improving the safety of a maritime platform, installed at sea or navigating at sea, including an observation of sea waves striking the maritime platform, an operation of the maritime platform being controlled via a control system. The method and device are suitable for: —acquiring elevation values of the surface of the sea at a plurality of points, making it possible to characterize at least one group of sea waves, a sea wave being likened to a wave defined by a period and an amplitude, —calculating at least one characteristic quantity of each group of waves, —comparing the calculated characteristic quantity to a hazard threshold, —if the comparison indicates the hazard threshold is crossed, raising an alert intended for the control system.

公开(公告)号：US20230395989A1

公开(公告)日：2023-12-07

申请号：US18249893

申请日：2021-10-21

Applicant: NAVAL GROUP ,  UNIVERSITE DE RENNES ,  SERIBASE Industrie ,  Centre national de la recherche scientifique

Inventor： Mohamed HIMDI ,  Raimi BEN DEWAN ,  Xavier CASTEL ,  Patrick CALDAMONE ,  Thierry LEVAVASSEUR ,  Frédéric GOURMELEN ,  Patrick PARNEIX

IPC: H01Q17/00

CPC classification number: H01Q17/008 ,  H01Q17/007

Abstract: Disclosed is an absorbent structure which is a honeycomb structure extending between two end faces and which includes tubular cells, each cell having walls delimiting the cell, the walls extending between the two end faces, the walls being formed from a dielectric material, at least one cell having at least one strip of electrically conductive coating arranged in at least one wall or over a surface of at least one wall, the honeycomb structure being characterized by parameters chosen so that the absorbent structure provides an attenuation of at least 10 dB for each incident wave in a frequency range having a frequency spread greater than or equal to 15 GHz.

公开(公告)号：US11719509B2

公开(公告)日：2023-08-08

申请号：US17627097

申请日：2020-07-17

Applicant: NAVAL GROUP

Inventor： Thibaut De Sarran ,  Quentin Deguin ,  Pierre Nuytten

IPC: F41F3/10 ,  G01P5/04 ,  B63G8/32 ,  F42B19/24 ,  F42B19/06

CPC classification number: F41F3/10 ,  B63G8/32 ,  F42B19/24 ,  F42B19/06 ,  G01P5/04

Abstract: A projectile launch detector, including a body, a mast and a blade rigidly connected to the mast; the mast being capable of sliding between a retracted configuration and a deployed configuration, and capable of pivoting between a first and a second angular position. The detector may further includes a first elastic return element to return the mast to the deployed configuration relative to the body; and a first associated sensor; and a second elastic return element to return the mast to the first angular position relative to the body; and a second associated sensor.

公开(公告)号：US11340282B2

公开(公告)日：2022-05-24

申请号：US16616263

申请日：2018-05-17

Applicant: NAVAL GROUP

Inventor： Nicolas Toquet ,  Philippe Keraudren

IPC: G01R31/11 ,  G01R31/50 ,  G01R31/08 ,  G01R31/28

Abstract: The invention relates to a reflectometry system for detecting faults on a hardened multipoint connector of an electrical network, of the type that comprises a measuring probe, characterized in that it comprises an interfacing and impedance matching part that is electrically suitable for mounting on the connector to be tested and comprises a body provided with at least one element in the form of a collector ring for the contact masses of the connector and a measuring opening for the probe of the reflectometry system.

公开(公告)号：US11292564B2

公开(公告)日：2022-04-05

申请号：US16766318

申请日：2018-11-26

Applicant: NAVAL GROUP

Inventor： Philippe Paumier ,  Arnaud Trouve

IPC: B63G8/04 ,  B63B15/00

Abstract: Disclosed is a mast intended to equip a marine or submarine vessel. The mast includes a metal structure extending along an axis and a fairing arranged externally to the structure in a direction normal to the axis. The fairing is removably assembled to the structure.