Abstract: A mechanical self-percussion fuze for a non-gyrating ammunition includes a firing pin disposed along a central axis and a primer provided in a primer holder. The primer holder is movable about an axis of rotation that is parallel and off-centered with respect to the central axis between a storage position in which the primer is off-centered with respect to the firing pin and an armed position in which the primer is aligned with the firing pin and safety devices coupled to the primer holder in order to keep the fuze in a safe state until at least two mutually independent physical phenomena linked to the firing of the ammunition occur. The fuze has a wind turbine designed to be driven in rotation by the relative movement of the air during the flight of the ammunition and to transmit this rotational movement to the primer holder only after the safety devices have been removed.
Abstract: The invention relates to a fuze for a gyratory projectile, including a striker holder movable about a rocker axis perpendicular to the axis of symmetry of the fuze, a primer holder rotatable about an axis of rotation parallel to the axis of symmetry, and a self-destruction device. The latter includes an SD mechanism using the linear acceleration of the projectile upon the departure of the shot to store axial kinetic energy, and a safety mechanism using the centrifugal effects of the projectile during the flight to store radial kinetic energy. The two mechanisms cooperate with each other, and with the striker holder and the primer holder to generate the different storage positions before firing, intermediate upon the departure of the shot, cocked during the flight and of self-destruction at the end of the flight, guaranteeing maximum safety of the projectile in the storage position and maximum responsiveness of the projectile regardless of the scenario encountered during ballistic firing.
Type:
Grant
Filed:
April 30, 2021
Date of Patent:
March 19, 2024
Assignee:
DIXI MICROTECHNIQUES
Inventors:
Sébastien Dubois, Philippe Guyon, Florent Lemercier
Abstract: A method of manufacturing an electrode for medical use, such as an intracerebral electrode (1) intended for use at brain level, the electrode having the shape of a narrow and elongated rod and including at least one electrical contact pad (2, 4) connected to an electrical conductor intended to be connected to a processing device and/or a recording device. In order to realize the electrode (1), a substrate (10) having a tridimensional shape is used and a metal layer is deposited on a periphery of the substrate (10) by a physical vapor deposition technique through a mask (12) that determines a pattern arranged so as to define at least the electrical contact pad (2, 4).
Abstract: A process for manufacturing an electrode for medical use and electrode obtained by the implementation of this process. The manufacturing process, for manufacturing the electrode for medical use, such as a cortical electrode (1) intended for use at brain level, comprises the steps of using a silicone strip (3) to form a flexible substrate (30), placing, on the flexible substrate, a mask (5) determining a pattern (6) arranged to define at least one electrical track (2) having at least one contact pad (20), and depositing a metal layer on the flexible substrate (30) through the mask (5) by a physical vapor deposition technique.
Abstract: An intracerebral electrode (11) which includes a narrow elongated body (1) for being implanted in a patient's brain. The body has contact pads (2) that are electrically connected to a measuring apparatus, and a mounting member (4) for attachment to the body to the patient's head. The electrode body has a closed distal end (5) and is hollow for receiving a treatment instrument (6). The intracerebral electrode (11) comprises a closed inner fluid flow circuit (20) formed inside the body (1) of the electrode to an area adjacent the closed distal end (5), and a connection mechanism (7) located outside the body which connects the closed inner fluid flow circuit to an outer fluid flow circuit so that fluid, flowing through the outer fluid flow circuit, flows into the electrode through the inner fluid flow circuit and controls the temperature of the electrode (11).
Type:
Application
Filed:
January 24, 2011
Publication date:
November 22, 2012
Applicants:
DIXI MICROTECHNIQUES, ASSISTANCE PUBLIQUE-HOPITAUX DE PARIS