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| Number | Title | Issue Date |
| 8061272 | Mechanical command to arm fuze A mechanical safe and arm device for rotating munitions reduces arming scatter so that the “no arm” and “all arm” distance are substantially the same. A first spring holds a flywheel, a pinion gear, and a drive gear against rotation until centrifugal forces ... | 11/22/2011 |
| 7478595 | Base mounted airburst fuze for projectile A projectile comprises a payload portion and an airburst fuze mounted on a rear of the projectile and explosively connected to the payload portion. The airburst fuze comprises an arming and firing electrical circuit including a setback generator; a slider that is mo... | 01/20/2009 |
| 7461596 | Safety and arming unit for a spinning projectile fuze A safety and arming unit (10) for a spinning projectile fuze, which has a fuze body (12) and a bearing body (14), which define a spherical cavity (16) between them, in which a spherical rotor (18) is mounted such that it can rotate... | 12/09/2008 |
| 7383774 | Microelectromechanical safing and arming apparatus A two-stage acceleration sensing apparatus is disclosed which has applications for use in a fuze assembly for a projected munition. The apparatus, which can be formed by bulk micromachining or LIGA, can sense acceleration components along two orthogonal directions t... | 06/10/2008 |
| 7367268 | Safety and arming device for a spinning projectile fuze A safety and arming device (10) for a spinning projectile fuze, which has a fuze housing (12), which is in the form of a pot, and a bearing body (14) with a booster charge (16). A spherical rotor (42) with a detonator (44) i... | 05/06/2008 |
| 7357081 | Safety and arming unit for a spinning projectile fuze A safety and arming unit (10) for a spinning projectile fuze, which has a fuze body (12) and a bearing body (14), which define a spherical cavity (16) between them, in which a spherical rotor (18) is mounted such that it can rotate... | 04/15/2008 |
| 7331290 | Fuze explosive ordnance disposal (EOD) circuit The present invention comprises an electronic Explosive Ordnance Disposal (EOD) circuit which is desirably used with fuzed explosive weapons, such as projectiles having a nominal mission time. After expiration of the mission time, if the explosive has not detonated,... | 02/19/2008 |
| 7316186 | Air-powered electro-mechanical fuze for submunition grenades A fuze for a submunition comprises a fuze housing with a stabilizer ribbon for aerodynamic orientation, a fuze slider released by tension on the stabilizer ribbon, an air-powered electric generator extended into the airstream by the fuze slider and powered in flight... | 01/08/2008 |
| 7261035 | Method and system for operation of a safe and arm device A method and a system controlling the operation of a safe and arm device. The embodiments include continually utilizing a rule based computation to generate an output signal to be sent to a controller affecting the operation of the safe and arm (S&A) device towards ... | 08/28/2007 |
| 7258068 | Safety and arming apparatus and method for a munition A safety and arming mechanism for a munition having a housing with a first detonator and an explosive mounted within the housing and in alignment with one another. A shaft is mounted within the housing. A first component is rotatingly fixed to the shaft and is movea... | 08/21/2007 |
| 7218193 | MEMS-based inertial switch In one embodiment, an inertial switch of the invention includes a MEMS device manufactured using a layered wafer. The MEMS device has a movable electrode supported on a substrate layer of the wafer and a stationary electrode attached to that substrate layer. The mov... | 05/15/2007 |
| 7213518 | Modular electronic fuze A modular fuze assembly is provided for use in multiple types of military ordnance. The fuze comprises a base unit having an initiator for arming the fuze; a timer assembly that includes a programmable clock package; a trigger assembly comprising a line monitoring c... | 05/08/2007 |
| 7194889 | MEMS multi-directional shock sensor with multiple masses A multi-directional shock sensor including two masses arranged to move in directions, which are mutually perpendicular to one another. A moveable locking member prevents movement of a slider, which is used in the arming arrangement of a submunition. In response to a... | 03/27/2007 |
| 7168367 | Submunition fuze An improved fuze for a submunition grenade designed to be launched from a cargo projectile comprising a fuze, a charge and a casing; the improved fuze comprising a fuze housing; a threaded firing pin having a pointed tip, oriented coaxially with the sub... | 01/30/2007 |
| 7156049 | Release mechanism to interact with biota, in particular fauna that may outgrow available habitat A device for interacting with biota either on a pre-specified schedule or via actuation by remote signal. Preferably, the biota are fauna and more particularly fish. In selected embodiments, it comprises frangible packaging enclosing means for timing interaction, at... | 01/02/2007 |
| 7148436 | Microelectromechanical acceleration-sensing apparatus An acceleration-sensing apparatus is disclosed which includes a moveable shuttle (i.e. a suspended mass) and a latch for capturing and holding the shuttle when an acceleration event is sensed above a predetermined threshold level. The acceleration-sensing apparatus ... | 12/12/2006 |
| 7142087 | Micromechanical latching switch A micro-electrical-mechanical-switch (MEMS) device comprises a semiconductor wafer, a first semiconductor layer formed on the semiconductor wafer, and a second semiconductor layer formed on the first layer. A first latching movable shuttle is formed in the second la... | 11/28/2006 |
| 7069861 | Micro-scale firetrain for ultra-miniature electro-mechanical safety and arming device A microscale firetrain for a safe and arm device having a safe position and an armed position, the firetrain including an input explosive column having a longitudinal axis; a transfer charge having a longitudinal axis and first and second ends and movable from a saf... | 07/04/2006 |
| 7055437 | Micro-scale firetrain for ultra-miniature electro-mechanical safety and arming device A microscale firetrain for a safe and arm device having a safe position and an armed position, the firetrain including an input explosive column having a longitudinal axis; a transfer charge having a longitudinal axis and first and second ends and movable from a saf... | 06/06/2006 |
| 7051656 | Microelectromechanical safing and arming apparatus A two-stage acceleration sensing apparatus is disclosed which has applications for use in a fuze assembly for a projected munition. The apparatus, which can be formed by bulk micromachining or LIGA, can sense acceleration components along two orthogonal directions t... | 05/30/2006 |
| 7040234 | MEMS safe arm device for microdetonation The present invention relates to a device for electronically arming and firing a MEMS-scale interrupted explosive train to detonate a main charge explosive. The device includes a MEMS slider assembly housing a transfer charge electrically actuated to move between sa... | 05/09/2006 |
| 7007606 | Method for utilizing a MEMS safe arm device for microdetonation The present invention relates to a method utilizing a MEMS safe arm device for electronically arming and firing a MEMS-scale interrupted explosive train to detonate a main charge explosive. The device includes a MEMS slider assembly housing a transfer charge electri... | 03/07/2006 |
| 7004072 | Magnetically sensed second environment safety and arming device The fuze is armed only if muzzle exit is sensed by a magnetic sensor within a predetermined time after setback is sensed and either one or both of a minimum spin rate is sensed by the magnetic sensor and/or a minimum number of turns are counted. ... | 02/28/2006 |
| 6968785 | Locking and stabilizing device for grenades The locking and stabilizing device for grenades utilizes a solid nylon ring and multiple nylon ribbons that are attached to the ring at regular intervals around its circumference. During storage, the ring surrounds and locks the slider of the grenade in its storage ... | 11/29/2005 |
| 6966261 | Fuze explosive ordnance disposal circuit The present invention comprises an electronic Explosive Ordnance Disposal (EOD) circuit which is desirably used with fused explosive weapons, such as projectiles having a nominal mission time. After expiration of the mission time, if the explosive has not detonated,... | 11/22/2005 |
| 6964231 | Miniature MEMS-based electro-mechanical safety and arming device A MEMS type safety and arming device includes a substrate; a frame disposed on the substrate; a setback slider disposed in the frame, the setback slider moving linearly in response to a setback acceleration; an arming slider disposed in the frame, the arming slider ... | 11/15/2005 |
| 6622629 | Submunition fuzing and self-destruct using MEMS arm fire and safe and arm devices A fuze for a submunition is miniaturized in size by forming the fuze of a micro-electromechanical systems ("MEMS") velocity sensor (38, 32, 34 and 36), a MEMs shock detector (31), a DC power supply (30) and one of the MEMs arm-fire device (2, FIG. 1) or M... | 09/23/2003 |
| 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 |
| 6530324 | Fuze mechanism for a munition A munition incorporating a fuze mechanism adapted to prevent momentary disarming of the mechanism once same is placed in an armed state. The fuze mechanism incorporates a fuze housing having a slide member movable slidably longitudinally between an unarme... | 03/11/2003 |
| 6318270 | Safety element particularly for a fuze of a substantially non-spinning projectile A projectile fuze includes a detonator carrier having a safety position and an armed position; a pin having a blocking position in which it holds the detonator carrier in the safety position and a releasing position in which the pin allows the detonator c... | 11/20/2001 |
| 6237495 | Self-destructing impact fuse A self destructing impact fuse including a cylindrical firing pin having a hollow centrifugal chamber for holding a number of spheres and a number of radial openings on its surface for exposing portions of the spheres when the chamber is spun. At one end ... | 05/29/2001 |
| 6167809 | Ultra-miniature, monolithic, mechanical safety-and-arming (S&A) device for projected munitions An ultra-miniature, monolithic, mechanical safety and arming (S&A) device for projected munitions operates in accordance with a double interlock feature. Acceleration of the projected munition moves a delay slider into a final position, causing an arming ... | 01/02/2001 |
| 6035783 | High performance fuze A fuze device for use with a detonator on munitions. A cup and ogive assembly includes an ogive post for aft axial movement upon impact of the device and activation of a spitback lead on the cup. An ogive post activates a first firing pin when the ogive i... | 03/14/2000 |
| 5467713 | Ignition and safty device for a grenade projectile provided with a shaped charge insert An ignition and safety device for a grenade projectile provided with a shaped charge insert and having a bottom-side impact fuse that has a spin-dependent safety element and acceleration-dependent safety element (14, 17), and a self-destruct device. The s... | 11/21/1995 |
| 5275101 | Pyrotechnic chain igniter for cargo warhead submunition 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... | 01/04/1994 |
| 5243912 | Arming delay, dual environment safe, fuze This invention provides a safing and arming mechanism for a fuze for a spinning projectile including a ball rotor journaled for rotation within a cavity in the fuze. A firing pin, said cavity and a booster charge lie along the longitudinal axis of the fuz... | 09/14/1993 |
| 5216196 | Safe & arming devices for rocket warheads and projectiles The safe and arming device comprises a housing containing a setback weight movable rearwardly against the resistance of springs in response to forward acceleration of the housing. A fire tube in the housing has a fire tube opening, blocked initially by fi... | 06/01/1993 |
| 5206457 | Pyrotechnic chain igniter for cargo warhead submunition 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 sli... | 04/27/1993 |
| 5033382 | Piezoelectric fuse for projectile with safe and arm mechanism A piezoelectric fuse, and safe and arm mechanism for a small active projectile is disclosed including a piezoelectric element mounted within the projectile near the leading end thereof with an impact deformable electrically conductive shell spaced from an... | 07/23/1991 |
| 4995317 | Safe-and-arm device for the fuze of a spin-stabilized projectile A safe-and-arm or securing device for the fuze of a spinning or spin-stabilized projectile which includes a fuze member and a supporting member in which a spherical rotor is rotatably supported and which has a radial groove formed therein. The rotor posse... | 02/26/1991 |
