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| Number | Title | Issue Date |
| 6951161 | Smooth bore second environment sensing A safety and arming apparatus for arming a fuze of a smooth bore projectile, comprises a setback sensor and a spin rate sensor. The setback sensor is in cooperative electronic communication with the spin rate sensor such that when the setback sensor senses at least ... | 10/04/2005 |
| 6568329 | Microelectromechanical system (MEMS) safe and arm apparatus A MEMS type safe and arm apparatus for a fuze includes a setback slider responsive to a first setback acceleration, the setback slider moving linearly in response to the first setback acceleration; a setforward slider responsive to a first setforward acce... | 05/27/2003 |
| 5705766 | Electronic turns-counting fuze and method therefor A fuse (12) detonates a spin-stabilized projectile (10) after the fuse (12) experiences a preset number of turns. The preset number is communicated (64) to the fuse (12) prior to launch. A semiconductor piezoelectric strain gauge (26) senses stress and pr... | 01/06/1998 |
| 5576510 | Percussion fuse for ammunition An impact fuse for a projectile comprises a firing needle and a main detonator carried by a rotor. The rotor is rotatable about an axis, upon launching of the projectile, and is rotated by centrifugal force from a safety position to a firing position in w... | 11/19/1996 |
| 5147974 | Unwinding ribbon safing and arming device In a weapon subject to linear acceleration and spin, including a detonator and an explosive charge, the safing and arming device comprising a housing, a setback spring configuration restraining a ribbon spiral unwinder, and a detonator-enabling circuit wh... | 09/15/1992 |
| 5056434 | Spin integrating safe and arm device for spinning munitions In a preferred embodiment, a safe and arm device for spinning munitions that takes advantage of the conservation of momentum law to impart a differential angular velocity to a ball rotating in a race within the device. The rotating ball is used to establi... | 10/15/1991 |
| 4938138 | Safing and arming mechanism with creep ribbon arming delay A spin stabilized projectile (16) containing a high explosive bursting charge (24) is provided with a safing and arming mechanism (20) comprising a safety barrier (48) for blocking the firing train between the detonator (38) and the charge (24), and two m... | 07/03/1990 |
| 4915028 | Dud de-arming device or insert for a projectile fuze The dud de-arming device serves to de-arm a fuze of a projectile which has remained lying on the ground or the place where it landed as a dud in order to prevent the discovered dud from still exploding when touched or moved. As to spinning projectiles the... | 04/10/1990 |
| 4535695 | Fuse for a spin-type projectile A fuse is used in a spin-type projectile. A percussion cap is mounted in a rotor which is normally disposed in a safety position. Rotation of the rotor to a firing position wherein the percussion cap is aligned with a firing pin is prevented by two indepe... | 08/20/1985 |
| 4478147 | Tri-rotor safe and arm device A safety arming device driven by a reversible motor including a detonator sitioned in a casing for initiating explosive logic through the reception of signals from an electric circuit. A driver wheel is rotated by the reversible motor which matingly engag... | 10/23/1984 |
| 4429633 | Impact igniter The invention deals with an impact igniter (1) for projectiles with a fuse (15) acting as a transport safety and delayed arming device. By partitioning off the fuse (15) and the striker pin (7, 17) located behind it forward in the projectile trajectory di... | 02/07/1984 |
| 4418621 | Mechanism for a rotating projectile fuze The mechanism comprises two toothed rotary bodies (1,2) sensitive to the gyratory centrifugal force of the projectile. The rotary bodies (1,2) mesh with each other. The body (1) simultaneously meshes with a toothed pinion (9) the shaft (10) of which carri... | 12/06/1983 |
| 4215635 | Safe and arming device An improved safe and arming device for isolating the fuse from the main eosive charge in spin stabilized shells to prevent premature detonation of such shells. The improved safe and arming device comprises a housing adapted to be positioned intermediate ... | 08/05/1980 |
| 4154169 | Safety device for a pyrotechnic assembly The invention relates to a safety device for a pyrotechnic assembly in a projectile, comprising a fire-screening flap disposed between an ignition primer and explosives, said flap being mounted so as to be escapable under the action of a mechanism provide... | 05/15/1979 |
| 4015532 | Energy generator for rotating projectiles An energy generator for rotating projectiles which may be adapted to prod either electrical or mechanical energy. An armature in the form of a rotatable disc is offset from the spin axis of the projectile towards the outer periphery thereof. The disc is ... | 04/05/1977 |
| 3972290 | Flywheel type odometer safing and arming mechanism A fail-safe projectile fuze safety-and-arming mechanism comprises a rotor ving thereon an explosive train component, said rotor having its mass center on the projectile spin axis. Fixedly secured to the rotor is a pinion whih engages first and second driv... | 08/03/1976 |
| 3964396 | Spin actuated release mechanism A release mechanism for use with an air-dropped store having a timed firing echanism which can be set for different time intervals. Action is initiated by a plurality of dynamic pressure sensing fins which, upon actuation, first unlock an inertia locking a... | 06/22/1976 |
