Abstract: A gas generating device is constructed of a gas generator, a hammer pin trigger device and a gas guide slot. The gas generator has a detonator. The hammer pin trigger device has a hammer pin arranged movably toward the detonator so that the hammer pin is caused to strike and fire the detonator. The gas guide slot is formed at a joint portion between the gas generator and the hammer pin trigger device for guiding gas, which occurs upon firing the detonator, in a specific direction to an outside of the gas generating device.

Abstract: A cartridge magazine for a gun includes a machined magazine body having an open edge and open bottom and a separate edge plate slidably attachable to the magazine body to cover the open edge and a floor plate slidably attachable to the magazine body to cover the open bottom and to lock the edge plate in place. A cylindrical coil spring is held in position in the magazine body and has a cartridge follower on one end and a spring base plate on the other which base plate has a detent member for locking to the floor plate for holding the cartridge magazine together. The process selects the components and assembles them by positioning the spring in the spring supporting portion of the magazine body, sliding the edge plate into position and then sliding the floor plate into position to lock the edge plate, floor plate and follower spring together.

Abstract: An optical guidance device comprises an entry lens of which the optical axis merges with the axis of rotation of the missile, a filiform infrared detector, sensitive to the infrared radiation of a target, is placed in the focal plane of the lens. The detector is intersected at least twice by circles centered on the axis of rotation of the missile. A circuit elaborates deviation information from the output signals from the detector. Steering means are provided for correcting the path of the missile from the deviation information.

Abstract: Container (1) for packaging an object (2) provided with a radio frequency transmission device.According to the invention, this container is noteworthy:in that it includes a removable element (5) capable of blanking off an aperture of said container (1) and bearing, on the one hand, at least one radio frequency antenna and, on the other hand, at least one coaxial connector, said antenna and said coaxial connector being linked electrically to one another;and in that, when said removable element (5) is in position blanking off said aperture, said coaxial connector is accessible from outside said container (1), while said antenna is internal to said container and is capable of being coupled in radio frequency terms with said radio frequency transmission device of said object (2) packaged in said container (1).

Abstract: An apparatus for use, for example, as a runway radar signal reflector, for reflecting incoming radar signals, which includes a reflector for reflecting the radar signals, a chamber through which the incoming signals pass on the way to the reflector, and a mechanism for periodically creating a plasma in the chamber so as to prevent the incoming radar signals from being reflected.

Abstract: An apparatus for activating a magnetic influenced mine from a distance includes a circuit arrangement for conserving power use and simulating the magnetic signature of a vehicle. The circuit arrangement includes a magnetic field generating coil connected to an electric feed circuit. The electric feed circuit is comprised of a voltage source, a circuit breaking element, and at least one capacitor connected to the terminals of the magnetic field generating coil. The circuit breaking element operates to alternately connect and disconnect the set of capacitors from the voltage source. By oscillating the current to the magnetic generating coil, the magnetic signature of a vehicle is simulated, and a mine is fooled into activation.

Abstract: An electronic safe and arming device includes an enclosure (11) which has a circuit (16) for enabling a detonator (26). The circuit (16) has a sealed tube switch (17) which is pressurized with a gas mixture. The enclosure (11) is pressurized with substantially the same gas mixture (19) and pressure as in the tube switch (17). Safe and arm electronics control (20) triggering the tube switch (17) to set off a detonator (26) which in turn sets off an explosive charge. As a result the present safe and arming device is single fault tolerant.

Abstract: A pump action shotgun that has been modified to accept a shotgun shell magazine that can be quickly and easily attached or removed. A shotgun shell loading port is formed in the bottom surface of the existing magazine tube adjacent its rear end. A magazine adapter is aligned with the shotgun shell loading port and secured to the bottom surface of the magazine. The magazine adapter has front and rear latch mechanism for securing the shotgun shell magazine. The existing magazine spring is removed from the magazine tube and a compressible subgroup assembly is inserted in its place. A transversely extending screw secures the forearm of the shotgun to the front end of the subgroup assembly so that they reciprocate as a single unit. An elongated slot is cut in the top surface of the existing magazine tube and the aforementioned screw passes therethrough. The bottom surface of the forearm is relieved adjacent its rear end so that it can clear the magazine adapter structure.

Abstract: An apparatus and method for controlling roll of a projectile is disclosed. The projectile includes two sections decoupled about a roll axis. The front section includes a stator and the rear section includes a rotor and a static spin imparting member. The spin rate of the projectile is controlled by utilizing the rotor and stator in combination as a generator to brake the spin or as a motor to establish spin.

Abstract: An improved magazine construction for gas powered firearms or other single object dispensing unit is disclosed. The expanding gasses from the breech or barrel of the gun are directed into the bottom portion of the magazine where they are introduced into a chamber having varying capacity. The upper portion of the chamber is movable and forms the follower, which includes integral biasing means thereon to provide additional impetus for urging the cartridges upwards into the receiver. The body of the follower also includes spring loaded cammed pins that engage cooperating pin holes in the inner magazine wall to provide a ratcheting action as the follower advances. These pinholes also serve as a excess pressure relief, allowing the gasses to escape through a blow by rail located between the inner and outer magazine walls.

Abstract: A firearm security device, to temporarily disable a firearm. The principal components of the device are an anchor, formed of material which may be stretched, which is slightly oversized in relation to the gun barrel bore and chamber diameter; and an extractor, which may be screwed onto one end of the anchor, and is used both for inserting and removing the anchor from the gun barrel and chamber. The extractor also has an actuating rod passing therethrough, which is used to exert stretching force on a shaft passing through the anchor and secured to the opposite end of the anchor, for stretching the anchor longitudinally so as to reduce its diameter sufficiently to allow insertion of the anchor into the firearm barrel and chamber. After the anchor is inserted, with the stretching force applied, the user ceases applying the stretching force, so that the anchor becomes wedged within the barrel and chamber, as it seeks to return to its normal diameter.

Abstract: A geophone is disclosed that has a cylindrical housing closed at one end by a bottom and the other end by a top. A magnet assembly with pole pieces at each end of the magnet is centrally mounted in the housing providing an annular space between the magnet assembly and the housing. A coil form is located in the annular space. Springs support the coil form for axial movement relative to the magnet assembly along the longitudinal axis of the housing. Washers are included on the upper and lower sides of each of the springs to enhance the life span of the springs by reducing the damage caused by torsional forces experienced by the springs during normal operation and rough handling. Also incorporated in the geophone are resilient members mounted between the coil form and the housing to prevent the coil form from directly hitting the housing and thereby reduce the amount of frequency shift experienced by the geophone over its life span.

Abstract: A mine removal vehicle comprises a tracked vehicle, a frontal assembly operatively connected with the tracked vehicle in a liftable and lowerable manner, and a box connected to the frontal assembly which has a scarifying drum arranged in it transversely to the driving direction. The scarifying drum is lowered into the soil, rotating against the driving direction, transporting a mine toward the front of the scarifying drum and exploding it there by the application of pressure.

Abstract: A hoop seal for a large annular opening having a high strength ring disposed in the hoop, the hoop having a sealing lip extending at an angle into the high pressure side of the seal, a base and a membrane connecting the hoop to the base which allows the hoop to rise on the side where the annular opening narrows and thereby provide a lateral force which acts to equalize the annular opening.

Abstract: A method of determining the effects of stress on a non-linear orthotropic ssile structure. Measurements of non-linear orthotropic strain, due to step-wise increasing stress in one of three orthogonal directions, are made. Non-linear orthotropic strain terms of the missile structure, in each of three orthogonal directions, are determined from the measurements. A compliance matrix is formed by using the determined strain terms. This compliance matrix is used in an iterative fashion of step-wise increasing stress, to determine three dimensional strain of the missile structure.

Abstract: A radar absorbing apparatus for use with an electromagnetic radiation generating device is disclosed. The radar absorbing apparatus comprises a rigid housing having a closed end and an open end defining an inner cavity. The open end is formed to have a peripheral edge dimensioned to mate to the interior surface of a motor vehicle window. The housing has electromagnetically reflective properties. In addition, the housing has an aperture that extends through the closed end of the housing that communicates with the cavity. This aperture is dimensioned to receive an operative end of the electromagnetic radiation generating device. The apparatus further includes an electromagnetically absorbing layer that is disposed on the inner surface of the housing.

Abstract: This device selectively locks the trigger of a firearm by the action of a hollow pin that, pushed by a spring, fits inside a cavity made at the bottom of the trigger. This hollow pin is welded to a flat steel bar that fits along a groove inside the horizontal part of the trigger guard. This trigger guard is made of a non-magnetizable material. The flat steel bar pivots by the use of a horizontal pin that can be locked at the front of the trigger guard, depending of the needs of the designers of the different guns. This flat steel bar has an up and down motion to lock and unlock the trigger.To release the trigger, the user of the gun wears a flat magnet with a magnetization pattern parallel to its thickness. This magnet should be attached to the exterior surface of the second phalanx of the middle finger of the shooting hand either mounted to a ring or sewn to a glove.

Abstract: A continuous optical data path is provided through an optical fiber exteng from a launch platform to a missile. The launch platform, a surface craft, submarine or aircraft, has a tether cable connected at one end with a length of the optical fiber extending to a dynamically designed body. The dynamically designed body prevents damage of the length of optical fiber by pulling it and the tether cable beyond the structure and propulsors of the launch platform. A body spool of the optical fiber provided on the dynamically designed body pays out optical fiber as the dynamically designed body is pulled along by the launch platform and a canister spool of optical fiber on a missile canister for the missile provides the continuous optical data path as the canister is deployed from the dynamically designed body. A missile spool of the optical fiber may be included on the missile to provide the continuous data path if it is desired to launch the missile from the missile canister.

Abstract: An apparatus for supporting a firearm has a base, at least one hinged surface securement member attached to a bottom surface of the base and an extensible firearm support port in the base. An upright locking member is removably placed within the extensible firearm support port. An extensible firearm support is removably connected to the upright locking member. A plurality of seating member ports are in the base and are arranged in symmetrical sets of four. The extensible firearm support has an outer extension tube member and an inner extension tube member slidably, removably and lockingly disposed within the outer extension tube member. The upright locking member is hingedly and removably attached to an end of the outer extension tube member. A firearm stabilization member is removably connected to an end of the inner extension tube member. The inner extension tube member is slidably and releasably locked to the outer extension tube member by a first locking pin.

Abstract: A recoil mechanism used to return the slide of a semi-automatic handgun back to its battery position after firing is provided having a recoil spring, a rod member and a discrete flange member. The rod and the flange member each of polymeric material have a flange at one end thereof which retain the recoil spring disposed therebetween. The recoil mechanism is assembled by coaxially fitting the recoil spring onto the rod and then snap fitting the flange member onto the one end of the rod.