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.
F42C 15/295 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids operated by a turbine or a propellerMounting means therefor
F42C 1/02 - Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing pin structurally combined with fuze
F42C 9/02 - Time fuzesCombined time- and percussion- or pressure-actuated fuzesFuzes for timed self-destruction of ammunition the timing being caused by mechanical means
F42C 15/00 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges
F42C 15/188 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a rotatable carrier
F42C 15/20 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing pin
F42C 15/24 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means
2.
Fuze comprising a self-destruction device for a gyratory projectile
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.
F42C 9/18 - Double fuzesMultiple fuzes for self-destruction of ammunition when the spin rate falls below a predetermined limit, e.g. a spring force being stronger than the locking action of a centrifugally-operated lock
F42C 9/16 - Double fuzesMultiple fuzes for self-destruction of ammunition
F42C 15/188 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a rotatable carrier
F42C 15/44 - Arrangements for disarming, or for rendering harmless, fuzes after arming, e.g. after launch
3.
MECHANICAL SELF-PERCUSSION FUZE FOR A NON-SPINNING ROUND
The invention relates to a mechanical self-percussion fuze (1) for a non-spinning round, having a firing pin (14) disposed along a central axis (A), a primer (17') provided in a primer holder (17) that is movable about an axis of rotation (B) that is parallel and off-centre with respect to the central axis (A) between a storage position in which the primer (17') is off-centre with respect to the firing pin (14) and an armed position in which the primer (17') is aligned with the firing pin (14), and safety devices coupled to the primer holder (17) in order to keep the fuze (1) in a safe state until at least two mutually independent physical phenomena linked to the firing of the round occur. The fuze (1) has a wind turbine (11) designed to be driven in rotation by the relative movement of the air during the flight of the round and to transmit this rotational movement to the primer holder (17) only after the safety devices have been removed.
F42C 1/02 - Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing pin structurally combined with fuze
F42C 9/02 - Time fuzesCombined time- and percussion- or pressure-actuated fuzesFuzes for timed self-destruction of ammunition the timing being caused by mechanical means
F42C 15/188 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a rotatable carrier
F42C 15/20 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing pin
F42C 15/24 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means
F42C 15/295 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids operated by a turbine or a propellerMounting means therefor
4.
FUZE COMPRISING A SELF-DESTRUCTION DEVICE FOR A GYRATORY PROJECTILE
The invention relates to a fuze (4) for a gyratory projectile, comprising a firing pin holder (14) movable about a rocker arm axis (15) perpendicular to the axis of symmetry (A) of the fuze, a primer holder (60) which is rotatably movable about an axis of rotation parallel to the axis of symmetry, and a self-destruction device (7). The latter comprises an AD mechanism (20) using the linear acceleration of the projectile at the start of firing to store axial kinetic energy, and a safety mechanism (30) using the centrifugal effects of the projectile during flight to store radial kinetic energy. The two mechanisms (20, 30) cooperate with each other, and with the firing pin holder and the detonator-carrier, to generate the various positions, i.e. the storage position before firing, the intermediate position during firing, the armed position during flight and the self-destruction position at the end of flight, thus guaranteeing maximum projectile safety in the storage position and maximum projectile reactivity regardless of the situation encountered during ballistic firing.
F42C 9/18 - Double fuzesMultiple fuzes for self-destruction of ammunition when the spin rate falls below a predetermined limit, e.g. a spring force being stronger than the locking action of a centrifugally-operated lock
F42C 15/188 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a rotatable carrier
F42C 9/16 - Double fuzesMultiple fuzes for self-destruction of ammunition
5.
PROCESS FOR MANUFACTURING AN ELECTRODE FOR MEDICAL USE AND ELECTRODE OBTAINED BY THE IMPLEMENTATION OF THIS PROCESS
The present invention relates to a process for manufacturing an electrode for medical use, such as a cortical electrode (1) intended to be used in the brain, in which, in order to produce said electrode, a strip of silicone (3) is used to form a flexible substrate (30), placed on said flexible substrate is a mask (5) that determines a pattern (6) arranged to define at least one electrical track (2) having at least one contact pad (20), and a layer of metal is deposited on said flexible substrate (30) through said mask (5) via a physical vapour deposition technique.
A61N 1/05 - Electrodes for implantation or insertion into the body, e.g. heart electrode
A61B 5/04 - Measuring bioelectric signals of the body or parts thereof
H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
patents
