Class / Patent application number | Description | Number of patent applications / Date published |
102221000 | Arming devices | 45 |
20080210116 | Safety and Arming Unit for the Fuze of a Projectile - A safety and arming unit with a safe separation distance device ( | 09-04-2008 |
20120000388 | SAFETY AND ARMING DEVICE FOR A PROJECTILE AND USING MICRO ELECTRO-MECHANICAL TECHNOLOGY - The invention consists of a safety and arming device for a projectile and using micro electro-mechanical technology that incorporates at least three layers of substrate: a bottom, a top and at least one intermediate layer incorporating at least one mobile part with respect to the different layers of substrate wherein the bottom and top incorporate raised patterns, the raised patterns being evenly spaced over the bottom and the top such that the mobile part is always, when in movement, held immobile between the raised patterns of the bottom and those of the top, the raised patterns of the bottom being in contact with a lower face of the mobile part and the raised patterns of the top being in contact with an upper face of the mobile part. | 01-05-2012 |
102222000 | Blocking or interrupting type | 40 |
20090038496 | Explosive neutralizer and method - An explosive device includes a firing train, an explosive charge and a shock activated neutralizer configured to disable activation of the explosive charge by the firing train. The neutralizer includes a housing and a rupturable fluid barrier configured to selectively permit mixing of disabling material constituents to interact with the firing train to disable the same. A method of neutralizing an explosive device includes rupturing the fluid barrier, at least in part by applying a shock to the explosive device, and interacting the disabling material with the firing train to disable the same. | 02-12-2009 |
20090126593 | Safety and Arming Unit for a Fuse - A safety and arming unit for a fuse includes a firing chain having first and second firing devices defining an intermediate space therebetween and a barrier blocking the intermediate space in a safe position. The firing chain is brought into an armed position by a releasing movement vacating the intermediate space. First and second mutually independent securing devices lock the barrier in the safe position and execute an unlocking action based on two mutually independent physical arming parameters. A compact and very reliable safety and arming unit can be achieved in this way. | 05-21-2009 |
20090260533 | FUSE FOR A PROJECTILE - A fuse for a projectile has a primary firing assembly and a secondary firing assembly. The secondary firing assembly, which is separated from the primary firing assembly by a barrier, has a firing relay with a relay explosive in a sleeve component and a firing booster. When using insensitive explosive for the secondary firing assembly, little energy should be lost in the relay from the primary to the secondary firing assembly, with enhanced safety against inadvertent firing in the secondary firing assembly. For that purpose, the sleeve component forms a gas-tight seal for the secondary firing assembly with respect to the primary firing assembly. | 10-22-2009 |
20100031841 | Safe and arm device and explosive device incorporating same - A safe and arm (S&A) device is disclosed. The device utilizes a no-fire separation distance and a mechanical configuration of primary explosive/booster explosive and secondary explosive to establish a safe mode. While in safe mode, the device would allow no more than 1 in 1 million detonation transfers to occur from primary to secondary. In armed mode, the no-fire separation distance is taken away, allowing reliable detonation transfer. Two arming environments, which occur after launch and safe separation, are used to move the S&A device to armed mode. The first environment is the release event of the projectiles from their packed state in a dispenser. The second environment is a target sense mechanism. If either arming environment returns to its original state, the mechanism returns to safe mode. The S&A device will not allow inadvertent packing into the dispenser of explosive devices in the armed state. | 02-11-2010 |
20100258021 | Ammunition firing device incorporating a firing pin - An ammunition firing device incorporating a firing pin intended to impact a pyrotechnic composition to activate its ignition, wherein said firing pin incorporates a rod that slides when said ammunition is fired through the effect of the firing acceleration from a starting position to a deployed position, able to be locked in said deployed position, said rod being integral with a percussion tip occupying a fixed position in contact with said pyrotechnic composition, said rod being located fully inside said tip in said starting position and protruding from said tip in its deployed position, said device further incorporating a hammer to strike said rod during the impact of said ammunition on a target to cause the ignition of said composition. | 10-14-2010 |
20120199032 | SAFE AND ARM EXPLOSIVE TRAIN - A Safe-and-Arm system for the prevention of unintentional operation of an explosive device by interrupting a detonation train, the system employing an interruptive transfer assembly made of silicon and suitable for implementing in a MEMS device, the assembly including a silicon based transfer charge carrier on a porous explosive passageway made by etching, the passageway extending between at least two ports on the circumference of the transfer assembly, and a drive means that can mechanically bring about at least one armed state of a detonation train. | 08-09-2012 |
20150090145 | SAFETY ARMING SYSTEM FOR AN EXPLOSIVE CHARGE - The invention relates to a safety arming system for an explosive charge. According to the invention, the system comprises: an arming actuator ( | 04-02-2015 |
102223000 | Fluid pressure operated | 7 |
20140196624 | SAFE AND ARM EXPLOSIVE TRAIN - A Safe-and-Arm system for the prevention of unintentional operation of an explosive device by interrupting a detonation train, the system employing an interruptive transfer assembly made of silicon and suitable for implementing in a MEMS device, the assembly including a silicon based transfer charge carrier on a porous explosive passageway made by etching, the passageway extending between at least two ports on the circumference of the transfer assembly, and a drive means that can mechanically bring about at least one armed state of a detonation train. | 07-17-2014 |
102225000 | Rotating vane | 4 |
102226000 | Rotor or slide release | 3 |
20080223243 | Safe and arm device and method of using the same - A safe and arm device and method for a fuze in a bomb utilizing a piston and a drive shaft to rotate a rotor in and out of the safe and armed positions. The piston is operated by a difference in air pressure within the fuze as the bomb leaves its delivery vehicle. | 09-18-2008 |
20120055365 | SAFE AND ARM MECHANISMS AND METHODS FOR EXPLOSIVE DEVICES - A SAFE and ARM mechanism is includes an elongated casing having a first end and a second end. A high-G force firing pin is arranged relatively near to the first end and a low-G force firing pin is arranged relatively near to the second end. A detonator is arranged between the high-G force firing pin and the first end. When a G-force within a first range of magnitudes is applied to the casing along its longitudinal axis, the low-G force firing pin is displaced to strike a portion of the high-G force firing pin, and if a G-force within a second range of magnitudes is applied to the casing along its longitudinal axis, the high-G force firing pin is displaced to strike the detonator. The device may become ARMED in response to a centrifugal force generated by spinning the casing on its longitudinal axis. | 03-08-2012 |
20120210898 | Safe And Arm Mechanisms And Methods For Explosive Devices - A SAFE and ARM mechanism includes an elongated casing having a first end and a second end. A high-G force firing pin is arranged relatively near to the first end and a low-G force firing pin is arranged relatively near to the second end. A detonator is arranged between the high-G force firing pin and the first end. When a G-force within a first range of magnitudes is applied to the casing along its longitudinal axis, the low-G force firing pin is displaced to strike a portion of the high-G force firing pin, and if a G-force within a second range of magnitudes is applied to the casing along its longitudinal axis, the high-G force firing pin is displaced to strike the detonator. The device may become ARMED in response to a centrifugal force generated by spinning the casing on its longitudinal axis. | 08-23-2012 |
102227000 | Impacting device release | 1 |
20150114248 | Method for Lifting a Firing Safety Detent and Projectile Using This Method - According to the invention, in order to lift said safety detent, use is made of a multi-vane fan ( | 04-30-2015 |
102228000 | With or including a timing device | 1 |
20120037028 | STATIONARY SELF-DESTRUCT FUZE MECHANISM - A fuze mechanism for a submuntion includes an activation mechanism having a container filled with an activation fluid and an ampoule breaker to break the container upon deployment of the munition, a delay mechanism including a spring-loaded self-destruct firing pin to initiate a secondary detonator in close proximity to a primary detonator, and an interlock unit supported by the ampoule breaker that locks the self-destruct firing pin away from the secondary detonator. The ampoule breaker includes a piston and a timing ball, which accesses the activation liquid. The action of the activation liquid on the timing ball over time causes the timing ball to erode until it is forced into the container by the spring-loaded piston. The movement of the piston frees the interlock unit, allowing the spring-loaded self-destruct firing pin to move under force and impact or initiate the secondary detonator. Initiation of the secondary detonator destroys the primary detonator and, depending upon slide location, either sterilizes or destroys the submunition. The activation mechanism, delay mechanism and interlock unit are housed in a stationary self destruct slide housing for safe and reliable use of the fuze mechanism. | 02-16-2012 |
102229000 | Rotor or slide | 1 |
20120103223 | Surface Safe Explosive Tool - An explosive tool is disclosed. The explosive tool comprises a body structure, a charge, a detonator to ignite the charge via propagation of thermal energy, a pressure actuated safety to prevent propagation of sufficient thermal energy to ignite the charge when the pressure actuated safety is subjected to a surface pressure and to not prevent propagation of sufficient thermal energy to ignite the charge when the pressure actuated safety is subjected to at least a predefined pressure threshold, and a temperature actuated safety to prevent propagation of sufficient thermal energy to ignite the charge when the temperature actuated safety is subjected to a surface temperature and to not prevent propagation of sufficient thermal energy to ignite the charge when the temperature actuated safety is subjected to at least a predefined temperature threshold. The charge, the detonator, the pressure actuated safety, and the temperature actuated safety are contained within the body structure. | 05-03-2012 |
102231000 | Centrifugal and setback operated | 5 |
102235000 | Rotor or slide with setback release | 5 |
20090205526 | Micro-machined or micro-engraved safety and arming device - A micro-machined or micro-engraved safety and arming device for a pyrotechnic train of a projectile to which axial spin is imparted after firing, such device comprising a substrate onto which a shutter to break the pyrotechnic train is positioned, such shutter being mobile in translation on the substrate, device in which the train-breaking shutter is held immobile by at least two locks, a first lock, or axial acceleration lock, which is released further to the application of the acceleration communicated to the projectile during firing, and a second lock, device wherein the second lock is a centrifugal lock that is released further to the projectile being made to spin. | 08-20-2009 |
20110000388 | Mechanical self destruct for runaway escapements - An escapement fuze self-destruct mechanism for a projectile includes a drive weight that maintains a biasing member in a compressed state by centrifugal force when a projectile's RPM speed is above a preselected threshold. When the RPM speed falls below the preselected threshold, the biasing member exerts sufficient counter-rotational force to overcome the centrifugal force exerted by the drive weight. The biasing member expands to an uncompressed state and displaces the drive weight into position for mechanically implementing self-destruction of the projectile if a rotor is fully armed or for rendering the projectile “safe” if the rotor is in any position other then fully armed. | 01-06-2011 |
20120192745 | SAFETY AND ARMING DEVICE FOR A PYROTECHNIC TRAIN OF A PROJECTILE - A micro-machined or micro-engraved safety and arming device for a pyrotechnic train of a projectile to which an axial spin motion is imparted during firing, the device includes a shutter to interrupt the pyrotechnic and being held immobile by at least two locks, a first lock or axial acceleration lock that is released further to the application of the acceleration during firing and a second lock that is a centrifugal lock released further to the spinning of the projectile. | 08-02-2012 |
20120266771 | Safety Priming Device for Rotating Ammunition - An ammunition safety priming device using silicon micro-mechatronic systems technology, having at least two priming safeties intended to be deactivated by as many external independent physical events, includes at least one movable element, along a translation axis, for deactivating at least one of the priming safeties by action on said movable element of one of the physical events. Said movable element is produced in a material other than silicon. The device has applications including ammunition, rocket stage separation devices, and airbags. | 10-25-2012 |
20130312630 | METHODS FOR ELECTRO-MECHANICAL SAFETY AND ARMING OF A PROJECTILE - A safety and arming apparatus for use with a projectile includes a rotor pivotable between a safe position and an armed position. A biasing element holds a mass engaged with the rotor to restrain the rotor from rotation and is deformable to allow the mass to displace and disengage from the rotor in response to a setback force on the projectile. A second biasing element includes a displaceable end for engaging with the rotor to restrain the rotor from rotation and is deformable to disengage the displaceable end from the rotor in response to projectile spin. A piston actuator can rotate the rotor to the armed position if the mass is disengaged and the displaceable end is disengaged. A detonator on the rotor can be aligned with a detonation cord when the rotor is in the armed position and unaligned when the rotor is in the safe position. | 11-28-2013 |
102237000 | Centrifugal operated | 2 |
20080210117 | Safety and Arming Unit for a Spinning Projectile Fuze - A safety and arming unit ( | 09-04-2008 |
102238000 | With or including a timing device | 1 |
20100251918 | COMMAND AND ARM FUZE ASSEMBLY HAVING SMALL PISTON ACTUATOR - A command to arm apparatus includes a housing having a hollow interior. A pivotally-mounted rotor is disposed in the hollow interior. The rotor has a first, safe position of rotational adjustment that prevents detonation of an explosive and a second, armed position of rotational adjustment that enables detonation of an explosive. A locking cam is pivotally mounted to the rotor and has a rotor-locking position of repose. The rotor is free to rotate from its safe position to its armed position when the locking cam is rotated out of the rotor-locking position by a piston that extends from a piston actuator. The rotor abuts a flat formed in a sidewall of the housing and can rotate no further when the device is in the armed configuration. | 10-07-2010 |
102247000 | Inertia operated | 10 |
20090288571 | MULTI-STAGE MECHANICAL DELAY MECHANISMS FOR INERTIAL IGNITERS FOR THERMAL BATTERIES AND THE LIKE HAVING A ROTATABLE MOVABLE MEMBER - An inertia igniter including a mechanical delay mechanism having two or more members which are movable under different acceleration conditions to sequentially move a movable member upon sequential movement of the two or more members and an ignition member actuatable by the movable member such that movement of the movable member by the two or more members ignites the ignition member. The movable member can be movable by one of translation and rotation. The inertia igniter can further comprise an impact mass releasably movable in the housing, wherein the impact mass is released and movable by movement of the movable member to impact the ignition member. The inertia igniter can also further comprise a stop member for preventing movement of the impact mass until the movable member has moved a predetermined distance. | 11-26-2009 |
20100132577 | Multi-Stage Mechanical Delay Mechanisms For Electrical Switching and the like - A multi-stage inertial switch including: a housing having a first electrical contact; two or more members disposed in the housing, at least one end of each of the two or more members being sequentially movable upon a different level of acceleration of the housing; and a movable member movable within the housing by the sequential movement of the two or more members, the movable member having a second electrical contact capable of engagement with the first electrical contact to one of open or close an electrical circuit between the first and second electrical contacts upon an occurrence of a predetermined magnitude and/or duration acceleration event. | 06-03-2010 |
20100212528 | SAFETY AND ARMING DEVICE FOR HIGH-G MUNITIONS - A representative embodiment of the invention provides a MEMS-based safety and arming (S&A) device having a shuttle movably connected to a frame by one or more bowed springs. The device has an electrical path adapted to electrically connect the frame and a contact pad. In the initial state, the electrical path has an electrical break. If the inertial force acting upon the shuttle (e.g., during launch) reaches or exceeds a first threshold value, then displacement of the shuttle with respect to the frame causes the electrical break to close. If the inertial force reaches or exceeds a second threshold value greater than the first threshold value, then a latching mechanism employed in the S&A device latches to keep the electrical break irreversibly closed thereafter. | 08-26-2010 |
20120090490 | METHODS AND APPARATUS FOR SENSING ACCELERATION - Methods and apparatus for sensing acceleration according to various aspects of the present invention comprises a non-rigid membrane and a switching latch electrically coupled to the membrane. The membrane is responsive to acceleration forces and is configured to produce a signal as a result of deflections in the membrane caused by acceleration. The signal is transmitted to the switching latch causing a change in state of the switching latch. This change in state allows a second signal to be sent to an activating device such as a squib. | 04-19-2012 |
20120174810 | MULTI-STAGE MECHANICAL DELAY MECHANISMS FOR INERTIAL IGNITERS FOR THERMAL BATTERIES AND THE LIKE HAVING A LEAF SPRING MOVABLE MEMBER - An inertia igniter including a mechanical delay mechanism having two or more members which are movable under different acceleration conditions to sequentially move a movable member upon sequential movement of the two or more members and an ignition member actuatable by the movable member such that movement of the movable member by the two or more members ignites the ignition member. The movable member can be movable by one of translation and rotation. The inertia igniter can further comprise an impact mass releasably movable in the housing, wherein the impact mass is released and movable by movement of the movable member to impact the ignition member. The inertia igniter can also further comprise a stop member for preventing movement of the impact mass until the movable member has moved a predetermined distance. | 07-12-2012 |
20140305326 | Compact Mechanical Inertia Igniters For Thermal Batteries and the like - A method for igniting a thermal battery upon a predetermined acceleration event. The method including: rotatably connecting a striker mass to a base; aligning a first projection on the striker mass with a second projection on the base such that when the striker mass is rotated towards the base, the first projection impacts the second projection; and preventing impact of the first and second projections unless the predetermined acceleration event is experienced. | 10-16-2014 |
20160377402 | GRAVITY DROPPED MUNITION HAVING ENERGY HARVESTING DEVICE FOR POWER GENERATION ONBOARD MUNITION - A munition including: a shell; and a generator including: a drum having a cable with a free end, the drum includes a drum gear, the cable releasing from the drum when unwound; a spring for storing energy as the cable is unwound; a generator connected to the drum such that drum rotation is transferred to an input of the generator after the cable is unwound and stored energy in the spring turns the member, the generator includes an input gear connected to the drum gear; and a clutch having an input gear engaged with the drum gear and an output gear engaged with the generator input gear, wherein the clutch transfers rotation of the clutch input gear to rotation of the clutch output gear after the cable is unwound and released from the drum and the stored energy in the spring turns the drum. | 12-29-2016 |
102251000 | Rotor or slide with setback release | 3 |
20110056401 | METHODS AND APPARATUSES FOR ELECTRO-MECHANICAL SAFETY AND ARMING OF A PROJECTILE - A safety and arming apparatus for use with a projectile includes a rotor pivotable between a safe position and an armed position. A biasing element holds a mass engaged with the rotor to restrain the rotor from rotation and is deformable to allow the mass to displace and disengage from the rotor in response to a setback force on the projectile. A second biasing element includes a displaceable end for engaging with the rotor to restrain the rotor from rotation and is deformable to disengage the displaceable end from the rotor in response to projectile spin. A piston actuator can rotate the rotor to the armed position if the mass is disengaged and the displaceable end is disengaged. A detonator on the rotor can be aligned with a detonation cord when the rotor is in the armed position and unaligned when the rotor is in the safe position. | 03-10-2011 |
20120000389 | SAFETY AND ARMING DEVICE FOR PROJECTILES INERTIAL LOCK WITH MEMS TECHNOLOGY - The invention relates to a safety and arming device for projectiles and using micro-electromagnetic technology, such device incorporating a slider made mobile by the effect of the centrifugal acceleration with respect to the body of the device and immobilized in a safety position by at least one inertial lock, such lock incorporating at least one means to ensure its blocking in the unlocked position, wherein the inertial lock incorporates a counterweight having at least one straight groove whose longitudinal axis is parallel to the direction of movement of the lock, groove in which a fixed guiding pin integral with the safety and arming device is positioned, since the groove is of sufficient length to allow the displacement of the counterweight with respect to the pin, the slider in its safety position being made integral with the body of the safety and arming device by means of hooking means integral with the counterweight. | 01-05-2012 |
20120192746 | SAFETY AND ARMING DEVICE WITH BREAKABLE LOCK - A micro-machined or micro-engraved safety and arming device for a projectile pyrotechnic train, said device comprising a substrate onto which a shutter is positioned to ensure the blocking of a channel, said shutter being mobile in translation on said substrate, said shutter being held immobile in the safety position by at least one acceleration lock that is released further to the application of the axial acceleration imparted to said projectile during firing, wherein said acceleration lock is constituted by at least one breakable tongue linking said shutter to said substrate, said tongue being oriented and dimensioned such that the axial inertial stresses developed during firing and exerted on said shutter cause said tongue to break. | 08-02-2012 |
102254000 | Slide or rotor | 8 |
20090114110 | DUAL 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 rotatable barrier. The booster base housing includes a shaft port extending substantially inline with a longitudinal axis, at least three initiator ports disposed about the axis, and a matching number of explosive transfer paths in respective communication with the at least three initiator ports. The barrier includes a matching number of fire-train transfer ports and a drive shaft. The drive shaft of the barrier is coupled within the shaft port of the booster base housing allowing the barrier to be selectively rotationally positioned about the axis into at least one of a safe position and an arm and fire position, allowing the fire-train transfer ports to be substantially aligned with the explosive transfer paths when the barrier is positioned in the arm and fire position. A booster basket assembly is also provided. | 05-07-2009 |
20100326307 | Safety and Arming Unit for a Projectile - A safety and arming unit for a fuze of a projectile has a rotor for interruption of a firing chain. The rotor can rotate from a safe position to an armed position. In order to allow the safety and arming unit to be designed to be physically compact and such that it can be assembled easily, it is proposed that it has a first and a second rotor safety device which each engage in the rotor in order to block rotor rotation to the armed position, wherein the first rotor safety device is designed to carry out a release movement by virtue of its inertia during a launch acceleration of the projectile, and the second rotor safety device has a pyrotechnic charge for producing a release movement. | 12-30-2010 |
20110005421 | DUAL 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 matching number of explosive transfer paths in respective communication with the at least three initiator ports. The barrier includes a matching number of fire-train transfer ports and a drive shaft. The drive shaft of the barrier is coupled within the shaft port of the booster base housing allowing the barrier to be selectively rotationally positioned about the axis into at least one of a safe position and an arm and fire position, allowing the fire-train transfer ports to be substantially aligned with the explosive transfer paths when the barrier is positioned in the arm and fire position. A booster basket assembly is also provided. | 01-13-2011 |
20160146586 | ARMING AND SAFETY DEVICE - An arming and safety device for a pyrotechnic chain, the device including a housing presenting an inlet zone for a pyrotechnic stream and an outlet zone for the pyrotechnic stream, an arming element housed in the housing between the inlet and outlet zones and adapted to move between a disarmed position in which it blocks the passage of the pyrotechnic stream and an armed position in which it allows the pyrotechnic stream to pass, and an electric motor for driving the arming element. The stator of the electric motor is situated outside the housing, and the rotor is contained entirely inside the housing. | 05-26-2016 |
20160377401 | METHOD FOR GENERATING POWER IN A GRAVITY DROPPED MUNITION - A method for generating power in a gravity dropped munition. The method including: attaching a cable from a generator associated with the munition to a portion of an aircraft; separating the munition from the aircraft to pull the cable from the munition; converting the pulling of the cable to a rotation; producing power from the rotation; and providing the power to an internal component of the munition. | 12-29-2016 |
102255000 | Timing device operated | 1 |
20120272852 | HAND GRENADE FUSE - A hand grenade fuze has a firing cap, a delay charge, which can be fired by the firing cap, in a delay charge holder, a detonator, which can be fired by the delay charge, in a detonator holder, and a booster charge, which can be fired by the detonator, for firing a hand grenade explosive charge. | 11-01-2012 |
102256000 | Spring operated | 2 |
20100147176 | SAFETY SYSTEM - A small arms projectile for a small arms weapon is provided within a cartridge cover ( | 06-17-2010 |
20110203474 | FUZE FOR A PROJECTILE - A fuze for a projectile having a firing chain has an interrupter for interruption of the firing chain. The interruptor is configured to snap from a safe position to an armed position when unlocked. A locking device is disposed to lock the interrupter in the safe position and to unlock the interrupter by way of an unlocking movement. The fuze is rendered compact and reliable in that the unlocking movement of the locking device is an axial movement. | 08-25-2011 |
102257000 | Timer operated impacting device latch | 1 |
20120192747 | TIME CONTROL DEVICE FOR THE MOVEMENT OF A MICRO-MACHINED AND SAFETY AND ARMING DEVICE COMPRISING SUCH A TIME CONTROL DEVICE - A time control device for the movement of a micro-machined or micro-engraved counterweight with respect to a substrate, said counterweight incorporating at least one face having at least one indentation intended to cooperate with at least one other indentation on a housing in which said counterweight moves so as to ensure the delaying of said movement of said counterweight, wherein said one indentation on said counterweight respectively on said housing receiving said counterweight is made on at least one flexible tongue itself integral with said counterweight respectively said housing, said at least one flexible tongue being able to be deformed by bending during the displacement of said counterweight. | 08-02-2012 |
102262000 | Switch | 3 |
20100199873 | Methods and Devices For Enabling Safe/Arm Functionality Within Small Weapons - A method for enabling safe/arm functionality in weapons. The method including: attaching the weapon to an airframe; providing an elastic element in the weapon; releasing the weapon from the airframe to release a stored energy in the elastic element; converting the stored energy to an electrical energy; and providing the electrical energy to one or more components in the weapon. | 08-12-2010 |
20120111217 | Explosive well tool firing head - A firing head embodiment of the invention confines a connected capacitance cartridge, explosive detonator, and wireline connection switch within an independent, cylindrical housing tube that is environmentally capped at both ends by threaded closures for secure transport to a well site. | 05-10-2012 |
20120247356 | Dynamic Switching System for Use in In-Line Explosive Trains - The presently disclosed technique pertains to in-line explosive trains, and, more particularly, to a dynamic switch for use in an in-line explosive train. In a first aspect, the presently disclosed technique includes a method for use in arming an in-line explosive train comprising: arming two S&A circuits independently of one another; transitioning each arming circuit to a dynamic control start state to initiate a pair of state machines, each state machine associate with a respective one of the S&A circuits; transitioning through the states of the state machine to turn a switch on and off. In a second aspect, the presently disclosed technique includes a dynamic safety switch for use in an in-line explosive train comprising: a pair of S&A circuits; a pair of state machines entering a predetermined cycle upon indication to arm from both the S&A circuits and cooperatively transitioning through the cycle; and a switch controlled by the cooperative transition of the state machines. | 10-04-2012 |