Abstract: A single vane gas displacement apparatus comprises a stator housing with a right cylindrical bore enclosing an eccentrically mounted rotor which also has a radial slot in which is movably radially positioned a single vane. The vane is tethered to antifriction vane guide assemblies concentric with the housing bore. Then vane has a preselected center of gravity located proximate to the housing bore axis. An option is to have a port in said vane for ducting high-pressure gas to the inlet side to react against the rotor slot to reduce vane contact therewith.

Abstract: In a Traffic Alert and Collision Avoidance System (TCAS), response to interrogations can result in normal, multipath (image), and mixed multipath (potential image) tracks. The method for reducing the number of false tracks includes the steps of selecting a track to be updated from an existing track list. The selected track has the shortest measured range within the highest priority category track. A reply which has not yet been utilized is selected which has parameters which are within predetermined windows of the selected track parameters. (The predetermined windows are equal to or smaller than the windows for lower priority targets.) The selected track is updated using .alpha..beta..gamma. range squared filter, and the selected reply is marked as used. After all tracks are updated, the unused replies are tested to generate new tracks. Then all the tracks are examined to insure that predetermined track category criteria are met, otherwise the track is recategorized.

Abstract: A non-autonomous fiber optic network having the capability of monitoring optical data communications of said fiber optic network comprises an optical fiber cable which provides an optical medium (i.e., bus) for communicating optical signals. A bus controller controls the communications of optical information on the optical fiber cable. The bus controller also monitors the optical information outputted on the optical fiber cable, thereby verifying the integrity of the optical information transmitted to terminals connected to the optical fiber cable. An optical interface of the bus controller taps a percentage of power that is outputted onto the optical fiber bus and routes that signal to a receiver unit of the bus controller. The signal coupled back to the receiver unit is utilized by the bus controller to monitor the integrity of the transmitted data that is outputted on the optical fiber bus.

Abstract: Control apparatus for an aircraft area navigation system provides transitioning from an inbound leg to an outbound leg of a lateral navigation waypoint with a fixed curved transition path with or along the outer limit of the protected airspace width or PAW. The present invention determines in conjunction with the aircraft altitude and the angle of the course change a maximum distance that the aircraft will deviate from either the inbound or outbound leg. This distance is sometimes called the maximum cross track error or MXTK. The maximum cross track error information in conjunction with the course change angle is used to generate a turn radius for a fixed curved transition path to be followed by the aircraft independent of ground speed. The turn radius information together with the aircraft ground speed information is used to generate a bank angle bias command signal.

Abstract: 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 mechanical components for restraining and releasing the barrier. The two mechanical components include a conventional setback tab (76), which is responsive to forces of linear acceleration during launching of the projectile (16), and a delayed action lock ball device (67, 68), which is responsive to centrifugal forces after the projectile (16) has begun to spin. The delay in the response of the lock ball device (67, 68) to the centrifugal forces is accomplished by means of a creep ribbon (54) which prevents release of the barrier (48) until the ribbon (54) has undergone a predetermined amount of time-dependent deformation.

Abstract: An improved ignition system for a fin-stabilized, high intrusion projectile (10) comprises an elongated boom (14) and a hollow fin assembly (16) which extends rearwardly into an external cartridge case (28) containing a consumable containment bag (30) filled with granular propellant (34), and which fits slidably over a primer (54). The primer (54) comprises a stub flash tube (56) extending through the base (40) of the external cartridge case (28) and a long igniter cartridge (58) fitted within the axial bore of the stub flash tube (56). The outer walls of the igniter cartridge (58) are fabricated from a combustible material such as paper, and the interior of the igniter cartridge (58) is filled with strands of benite or a similar explosive.

Abstract: The application discloses drying oil binder materials for use in improving cathode adhesion to thin metal current collectors and methods of applying them.

Abstract: The boat tail (28) of a fin-stabilized projectile (10) for firing from a smooth bore gun tube (14) is provided with a plurality of transversely extending spin chambers (34 a,b,c,d). Each chamber communicates with a converging-diverging nozzle (36 a,b,c,d) which extends through the outer surface of the boat tail (28) to provide free access to the surrounding atmosphere when the nozzles (36 a,b,c,d) are clear of the gun tube (14). When the propulsive charge in the rear of the gun tube (14) is ignited, a portion of the propellant gas produced by the charge enters the spin chambers (34 a,b,c,d) through the nozzles (36 a,b,c,d) and is stored in the chambers (34 a,b,c,d) until the converging-diverging nozzles (36 a,b,c,d) clear the gun tube (14), at which point the propellant gas exits through the nozzles (36 a,b,c,d) in the form of high speed tangentially directed jets which cause the projectile to spin at a predetermined rate which reduces dispersion due to fin misalignment.

Abstract: A cased telescoped ammunition round 40 for a fin stabilized penetrator projectile 50. A cylindrical core tube 48 is positioned within the casing 42. Projectile 50 and its sabot 52 are positioned within core tube 48. The space between core tube 48 and casing is filled with the main charge 66. An igniter 62 is located in the rear seal 46 of casing 42 and when initiated, ignites booster charge 64 located within core tube 48 between sabot 52 and rear seal 46. Ignition ports 70 in core tube 48 permit the ignition products of booster charge 64 to ignite main charge 66 when sabot 52 moves a predetermined distance through core tube 48.

Abstract: A projectile 10 with a shaped charge warhead 27 and a nose mounted contact fuze 30. A precursor shaped charge 56 and liner 48 are mounted in the base 38 of fuze 30. When a target 64 is impacted by the projectile 10, a precursor shaped charge jet is produced by charge 56 and liner 48 which forms a passage 66 through fuze 30 substantially free of debris from the fuze 30 through which the warhead shaped charge jet 62 passes.

Abstract: A method of securing a tracer cup 26 and fin segments 32, 33 to armor piercing penetrator 21. The penetrator 21 is fabricated of tungsten, or steel, with fin segments 32, 33 and tracer cup 26 being fabricated of steel. The tracer cup 26 contains a pyrotechnic tracer mix 27. The mounting flange 28 of tracer cup 26 is placed over a second boss 24 projecting rearwardly from a first boss 23 at the aft end of the cylindrical body of penetrator 21. A cylindrical sleeve 30 is press fit over the tracer cup 26 and first boss 23, and pre-fabricated fin segments 32, 33 are positioned on the sleeve 30. The fin segments 32, 33, cylindrical sleeve 30, and mounting flange 28 of tracer cup 26 are laser welded to each other and to the first boss 23 of penetrator 20 in one step.

Abstract: A safety clip (20) for an ordnance munitions device (10) is fabricated from a wire of resilient material. The clip includes a straight leg (22) having a free locking end (24), an attachment loop (26) carrying a pull ring (27), a back portion (28) having at least one spring element (32), and a closed loop (30) at the terminal end of the back portion (28) for receiving the free locking end (24) of the straight leg (22). The free end (24) extends beyond and through the closed loop (30), and may be extracted from the closed loop (30) essentially by means of a straight, axial pulling force of predetermined magnitude exerted on the pull ring.

Abstract: A manual activation device (10) includes a support element (40) and a lever (42) having a cam surface (80) which contacts a ball (38) carried in a cap (36) mounted at one end of a reserve battery (17). Activation of the battery (17) is accomplished by rotating the lever (42) about a pivot pin (59) in the support element (40), causing the cam surface (80) to drive the ball (38) into the battery (17) and break the ampule (24) within the battery (17). The lever (42) is preferably mounted on the pivot pin (59) by means of a slotted bearing surface (82) which enables the lever (42) to be removed from the support element (40) only after the ampule (24) has been broken. In addition, when the device is used in a Pursuit Deterrent Munition (PDM) (12), the lever (42) may be connected to the safety pin (18) and the shorting bar (20) of the munition (12), causing both of those elements to be withdrawn when the lever (42) is pivoted.

Abstract: A safing and arming (S&A) device 20 for a spin stabilized projectile 16 having an electronic fuzing system 18 which produces an electrical arming signal after the projectile 16 is fired. The cylindrical S&A housing 26 has two faces 28, 30 and a blow through hole 32 through the center of housing 26. A barrier recess 34 is formed in one face 28 of the housing 26 and a detonator 40 is mounted on the other face 30 and in alignment with the blow through hole 32. A barrier 36 is pivotally mounted in the barrier recess 34. Barrier 36 is held in its safe position blocking blow through hole 32 by a set back tab 54 and a barrier latch 48. The set back tab 54 is rendered inoperative when projectile 16 is fired from a gun. Latch 48 is bent out of contact with barrier 36 by a pyrotechnic actuator 56 being activated by the arming signal. When latch 48 is disengaged from the barrier 36, barrier 36 is free to move to its armed position, in which barrier 36 no longer blocks blow through hole 32.

Abstract: An armor-penetrating ammunition assembly is provided with a multiple segment aluminum protective cap 26. The cap 26 is provided with a plurality of stiffening ribs 34, 34', 35, 35', and torque resisting tabs 40, 40' which rest in one of the grooves 37, 37' defined by the ribs 34, 34'. Additional stiffening is provided by rolled stiffening portions 36, 36' at the trailing end 32 of cap 28 and by longitudinal ribs 38, 38' at the longitudinal edges of each segment 28, 28' of the cap 26. Attachment structure is provided for forming a fixed interconnection between each segment 28, 28' of the cap 26 and a corresponding portion 19, 19' of the sabot 18. Thus, each segment 28, 28' of the cap 26 remains attached to a corresponding sabot portion 19, 19' as each portion 19, 19' of the sabot 18 separates from the penetrator 12 at muzzle exit without disturbing the flight of the penetrator 12.

Abstract: An armor-penetrating projectile assembly 10 is provided with a molded protective cap 28. The cap 28, which is preferably molded from Nylon 6/6, is provided with a plurality of longitudinal stress grooves 34 formed in the interior surface of the cap 28 for aiding cap break-up as the projectile assembly 10 exits the muzzle of a cannon, and with an integral centering band 32 for ensuring a desired fit of the projectile assembly 10 inbore and, to control the angular velocity of the cap 28 about its axis of symmetry 46 for better separation after being fired. The cap 28 is fastened to the sabot 18 of the projectile assembly 10 by means of a grooved extension 36 on the sabot 18 within which a plurality of ramped projections 38 of cap 28 are received. The ramped projections 38 are molded into the inner surface of the cap 28 aft of each window 40.

Abstract: A wire stripping tool in which a pair of coplanar baldes have parallel cutting edges which do not close completely, and which bridge a pair of notches jointly defining a cylindrical space.

Abstract: A detector for detecting a valid synchronizing pattern in a data frame in which a synchronizing bit pattern is multiplexed including a first register to receive the data and the synchronization bits, a pattern detector connected to the first register for detecting the synchronizing bit pattern in the first register, a second register, a source of clock pulses coupled to both said first and second registers, the elements of the second register being set to a first binary state and a density detector coupled to the second register.

Abstract: A stress sensitive semiconductor die and housing means therefore comprising a ceramic base member having a recessed portion and a shoulder portion around the periphery. A washer-like support member is positioned within the recess, one face of which is bonded to the base member, said support member having a central aperture. A stress sensitive semiconductor die is bonded to the other face of the support member with the center of the die being in substantial register with the aperture in the support member. Finally, cover means are attached to the shoulder portion.