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Class 102/221 - Arming devices


Subclass of Class 102 - Ammunition and explosives
Definition: Subject matter which includes means selectively rendering
No. of patents: 88
Last issue date: 03/27/2012


1      
NumberTitleIssue Date
8141490Dual fault safe and arm device, adaptive structures therewith and safety and reliability features therefor
A safe and arm device includes a booster base assembly having a booster base housing and a barrier. The booster base housing includes a shaft port extending substantially in line with a longitudinal axis, at least three initiator ports disposed about the axis, and a...
03/27/2012
7845279Explosive material sensitivity control
An armor module and an explosive material therefore, which explosive material is normally retained at a less sensitive position, and upon demand it is modified into a more sensitive position, where its initiation ability is upgraded and wherein the modification is c...
12/07/2010
7784404Dual fault safe and arm device, adaptive structures therewith and safety and reliability features therefor
A safe and arm device includes a booster base assembly having a booster base housing and a barrier. The booster base housing includes a shaft port extending substantially in line with a longitudinal axis, at least three initiator ports disposed about the axis, and a...
08/31/2010
7699003Safety and arming unit for the fuze of a projectile
A safety and arming unit with a safe separation distance device (14), which acts as a function of a free-flight incident flow and temperature, for the fuze (12) of a projectile (11), which fuze is hermetically sealed from environmental influence...
04/20/2010
7591225Fuze module
A self-contained fuze module, for installation on pieces of ordnance, having sensing devices and processing capability within the fuze module to determine whether conditions have been met to arm the ordnance. The fuze module is a unitary sealed module communicating ...
09/22/2009
7370584Second environment sensing in smart bombs
A safety and arming apparatus for arming a fuze of a smart weapon comprise a release sensor and a verification maneuver sensor in cooperative electronic communication with each other, such that when the release sensor senses that the weapon has been released and the...
05/13/2008
7368647Support for a musical keyboard instrument
A support for a musical keyboard instrument has a first leg, a second leg and an adjuster. The first leg is pivotally connected to the second leg and a rod is formed in a sidewall of the second leg. Two first spiral surfaces are respectively formed in a free end of ...
05/06/2008
7337723Detonator arming
A detonator which, once armed, is automatically disarmed after a predetermined time period in the absence of at least one defined signal during such time period. ...
03/04/2008
7334523Fuze with electronic sterilization
A fuze may include a detonator, a firing capacitor and a control circuit. The firing capacitor may be charged to a nominal operational voltage, wherein when the firing capacitor is discharged across the detonator, an external explosive charge may be detonated. The f...
02/26/2008
7316186Air-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
7314004Method for delayed detonation of a penetrating weapon and related apparatus and systems
The present invention is directed to a system and a method for accurately locating a penetrating-type weapon within a shelter for detonation at a desired target site. The method includes detecting a deceleration threshold event indicative of the penetrating weapon i...
01/01/2008
7286333Switch card apparatus and methods
Switch card apparatus are disclosed. In one embodiment, a circuit includes a first portion having a first switch adapted to be coupled to a first voltage, a second portion including a second switch, and a third portion including a third switch. The first portion act...
10/23/2007
7261035Method 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
7240617Weapon arming system and method
An arming system for a weapon, such as a missile, includes a pair of logic elements that output different types of signals upon the occurrence of different pre-arming events. The different types of signals may be, for instance, signals at different frequencies. The ...
07/10/2007
7213517Device for a proximity-fuzed unit ammunition
A proximity-fuzed ammunition unit (1) that can approach a target and where during approach the proximity fuze function effects or gives rise to a voltage pulse pattern that is dependent on objects located along the flight path of the ammunition unit on its ap...
05/08/2007
7183673Passive inductive switch
A passive inductive switch for coupling a battery to a load in a remotely deployed battery-powered electronic device. The switch operates in response to a transmitted magnetic field at a particular frequency. The switch includes an antenna for transforming the magne...
02/27/2007
7164989Warhead fuzing system
A fuzing system and method for arming a fuzing system of a projectile using global positioning system (GPS) information from a GPS satellite system. The system determines when two independent verifications have been met before arming the system. The first verificati...
01/16/2007
7148436Microelectromechanical 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
7138603Device for remotely decoupling coupled objects with a fusible link underwater
A device for remotely decoupling coupled objects with a fusible link underwater using a replaceable fusible link of appropriate electrical resistance, a method to supply a high-power charge of electricity across the fusible link, a mechanism held by the fusible link...
11/21/2006
7124689Method and apparatus for autonomous detonation delay in munitions
A detonation timing apparatus and method of determining a detonation time is disclosed. The detonation timing apparatus comprises an initiation sensor, at least one impact sensor, and at least one controller. The at least one controller may be configured for sensing...
10/24/2006
7069861Micro-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
7055437Micro-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
7055436Shell fuse
A shell fuse has a target acquisition sensor, such as an impact sensor, and a firing train in which a firing device carrier is movable from a safe position into an armed position. Overflight safety all the way to the target is afforded in a simple manner. There is p...
06/06/2006
7051656Microelectromechanical 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
7040234MEMS 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
7007606Method 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
7004072Magnetically 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
6964231Miniature 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
6951161Smooth 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
6920826Energy supply device having a shaft rotatably supported on a polytetrafluroethylene bearing surface
An energy supply device for a mortar fuse includes a housing, a driven rotary shaft including a cylindrical shaft surface rotatably disposed in a stationary cylindrical bearing surface in the housing, and a fan connected to the shaft for rotating the shaft in a sing...
07/26/2005
6922059Electric field sensor
The invention is a detection system and in one embodiment uses inexpensive, miniaturized sensors for detecting electric field (E-field) disturbances. Such sensors are easily and covertly deployable and have low power consumption. The devices may incorporate visual o...
07/26/2005
6883434Fuse device for a projectile
A mortar includes a fuse device having a detonator, and a firing booster arranged to be ignited in response to detonation of the detonator. The detonator is detonated by a firing pin. Advancement of the firing pin toward the detonator is effected by an electrically ...
04/26/2005
6851369Access control for electronic blasting machines
Blasting apparatuses and methods control actuation of a plurality of detonators, and involve the use of one or more authorization keys each associated with a blasting machine. The authorization key(s) are transferable from the blasting machine(s) to a central comman...
02/08/2005
6729240Ignition isolating interrupt circuit
An ignition isolating interrupt control circuit (52) includes a main transition circuit (90) isolating a first activation circuit (84) from an ignition circuit (114). The main transition circuit (90) includes a source terminal (...
05/04/2004
6604467Safety system for a projectile fuse
The invention provides a safety system for a small arms projectile in which an initiating device is impacted by a firing member in order to detonate a main explosive charge. The system requires the firing member to be retained in a safe position in relati...
08/12/2003
6598533Electronic time-fuse for a projectile
The invention aims to increase the overflight safety of a projectile, comprising a time-fuse which has an acceleration-activated battery. To this end, the safety device actuates a switch, whose position is interrogated during the flight phase and the fuse...
07/29/2003
6584880Electronically controlled arming unit
An electronically controlled arming unit including a logic circuit that is driven by the pre-existing weapons system signals to control a lanyard locking unit, thus removing the need for an external force to operate the arming unit. The electronically con...
07/01/2003
6568329Microelectromechanical 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
6564716Fuzes having centrifugal arming lock for a munition
A fuze for a munition adapted to prevent unintended arming thereof. The fuze incorporates an arming screw having a keyed portion and a centrifugal locking mechanism for preventing rotation of the arming screw unless the fuze mechanism is in a rapidly spin...
05/20/2003
6463855Fuse device for a mortar shell
A fuse device for a mortar shell includes an impact weight carrying a detonation charge and arranged to impact against a firing pin when the mortar shell strikes a target. A safety arm locks the impact weight against movement toward the firing pin in a sa...
10/15/2002
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