Abstract: An isolator for enclosing a flexible waveguide at an antinode point along s length to attenuate movement of the waveguide and prevent its reaching a resonant condition, the isolator comprising a thick band of metallic wool impregnated with a low-density rubber foam contained within an elastomer jacket and supported by a snugly fitting bracket around its outer circumference which is firmly attached to a relatively immobile foundation.It should be understood that the foregoing abstract of the disclosure is for the purpose of providing a non-legal brief statement to serve as a searching-scanning tool for scientists, engineers and researchers and is not intended to limit the scope of the invention as disclosed herein nor is it intended that it should be used in interpreting or in any way limiting the scope of fair meaning of the appended claims.

Abstract: The missile launching assembly includes a mount tube having a circumferenl tapered continuous groove, a launch tube within the mount tube, a shatterable end closure on the end of the launch tube adapted to be shattered when the missile is launched, a locking device in the form of a single split ring or a plurality of arcuate-shaped ring segments with a cross-section to match the groove taper positioned within the groove and between the mount tube and the flange of the end closure, and one or more circumferentially oriented spreading elements, such as expanding jackscrews fitted into the ring or ring segments for increasing the ring circumference to bring pressure to bear on the closure flange. The launch tube is designed to contain therein in a lengthwise direction the missile to be fired.The mount tube is a permanent part of the vehicle such as a submarine, from which the missile is to be launched.

Abstract: A mooring and landing device for aircraft which are capable of vertical dent for landing comprising an inflatable tube-type device, or trunk, attached to the bottom surface of the craft. The trunk is in the shape of a doughnut and the open interior compartment formed by the inflated trunk and the bottom surface of the craft is evacuated to a pressure lower than atmospheric so that the difference between the compartment pressure and the atmospheric pressure moors the craft to the ground. The trunk is inflated to a pressure greater than atmospheric and may be formed with a plurality of holes to provide an air cushion for lubrication purposes.

Abstract: A plated bit wire for a plated-wire memory comprising an extra outer plat of non-magnetic copper exterior to the outer-most, magnetic-film layer to a thickness of between 0.25 and 0.5 mils for the purpose of shielding the magnetic layer against high-frequency, transient currents induced by short radiation pulses.

Abstract: A miniature waveguide attenuator which may be used in a dominant-mode (TEb.10) waveguide to maintain a low VSWR over a 20% frequency band comprising a short section of waveguide with an E- or an H-plane tee whose width is selected to set the cutoff frequency of the branch line of the tee at the design frequency F.sub.o. The branch line of the tee is terminated in a lossy material followed by a short circuit for absorbing energy propagating down the waveguide at frequencies higher than the design frequency in accordance with a controlled attenuation characteristic.

Abstract: A rear looking radar antenna system with a look angle of .+-. 120.degree. installed on a missile launching aircraft which has a conventional front looking antenna with a look-angle of .+-. 60.degree.. This permits a full 360.degree. to be covered. The search and track circuitry of the existing weapon control system is shared between the back and front antennas. As a target passes beyond the look-angle of one of the antennas, the other antenna picks it up. The weapon control circuitry is switched from the one to the other antenna at this time.

Abstract: A doppler/range simulator for use in testing aircraft systems based on the rinciple that an ionized gas absorbs microwave radiation and thus becomes raised to higher energy levels, and when falling back to the original energy state the ionized gas re-radiates the absorbed microwave energy. A frequency control simulates a doppler or velocity signal. A voltage or current control simulates the time delay or altitude range signal.The test set is in the form of a light-weight anechoic chamber lined on the inside with energy absorbant material except for the top. Within the enclosure there are positioned near the open top a plurality of parallel - arranged flurescent tubes adapted to be energized with pulsating d.c. to produce a flow of ions in the tubes which flow from one end of the tube to the other. The tubes are excited in parallel so that the ion flow is always in the same direction.

Abstract: A cable-bending tool comprising a removable, cylindrical mandrel with a gved circumference, an adjustable clamp positioned adjacent to the grooved circumference of the mandrel and forming therewith a cable-holding vice, a compass with suitable angle markings thereon installed below the mandrel and positioned so that when a cable is bent around mandrel circumference, the bend-angle may be determined from the angle markings, and a suitable pedestal mount for mounting the foregoing assembly thereon.

Abstract: Control of the directivity, reflectivity, transparency and tuning of R.F. antenna array is accomplished by building antenna with short dipole segments with a switch between each two segments. The elements are properly connected to exhibit these electrical characteristics by remotely controlling the closing and opening of selected switches. The means for controlling the switches is isolated from the R.F. working frequencies of the antenna.

Abstract: A circuit coupling an antenna to a load uses an integrated circuit differial amplifier with emitter feedback, a buffer amplifier and various adjusting networks to achieve constant output impedance independent of input loading over a wide range of frequencies. The adjusting networks also allow precision gain matching and phase matching between units.

Abstract: This invention comprises wrap-around fins for a rocket missile, the fins ng mounted on rods which are borne by a spool-like runner which encircles the nozzle body of a rocket missile. The nozzle body is exteriorly coated with teflon. The spool-like member has a ring-shaped extension on each end, each of which fits into a ring-shaped teflon bearing which, in turn, fits into a slot in a flange on the nozzle body whereby the spool-like member and the fins which are mounted on it are free to rotate relative to the nozzle (and therefore the rocket) body. The interior of the nozzle of the rocket is formed with flutes, the action of the exiting gases on the flutes causing the missile body to rotate in flight.

Abstract: A flexible, non-lethal projectile adapted to be fired from a conventional shotgun comprising a pliant body having a plurality of flexible arms. The projectile may be loaded in a shotgun shell casing and fixed therefrom. Upon exit from the gun muzzle the projectile arms extend and provide a large impact area to prevent penetration of the projectile into a target.

Abstract: A metal phase shifter case construction involves connecting two channel-shaped pieces of aluminum, one on each side of a ferrite toroid, and then spraying standard metal spray onto the toroid to electrically join the two channels together.

Abstract: A floating support structure includes a deck having a plurality of columns igidly affixed thereto. Each column is composed of a fabric covered by a flexible sealant material. Each column has an upper, central, and lower portion. The upper and lower portions are hollow. The upper portion is inflated with air, and the lower portion is filled with a material equivalent to or greater than the weight of the surrounding water. The central portion has a reduced cross-section and connects the upper and lower portion of the column in a manner that allows a degree of universal relative motion between the upper and lower portion of the column. A single column of the type described could be used to attenuate the motion of a spar buoy.

Abstract: A hydrodynamically balanced quiet control valve for a submarine (underwater ehicle) hovering system. The valve has a cylindrical valve element within a four-port valve housing. The interior of the valve element is divided into three chambers by a pair of parallel partitions extending lengthwise of the element and equally spaced from the element axis. Apertures in the cylindrical wall of the element are arranged, in cooperation with the partitions, to produce substantially constant total flow resistance through the valve when installed in the system, regardless of the angular rotation of the cylindrical valve element. A hover computer controls the angular position of the element in response to sensed pressure variations from the pressure at a preselected hovering depth.

Abstract: A Nernst lamp is used as the pumping means for a solid state laser. The l materials are selected so that the light energy emitted is essentially concentrated in the relatively narrow pump region of the absorption spectrum of the laser crystal. The input power in to the laser is equivalent to that of much higher power lamps operating over a much wider spectrum.

Abstract: 1. A system for passively measuring the range between a given point and a second point from which detectable radiations having distinguishable characteristics are emanating, comprising means for receiving at said given point direct radiations from said second point and indirect radiations from said second point which have been reflected from a reflecting surface, means for measuring the angle of elevation of said second point from said given point, means for measuring the altitude of said given point relative to said reflecting surface, a gate circuit for rejecting all direct signals which are not followed by a reflecting signal within a predetermined time span, and computing means for determining the range from said given point to said second point as a function of said direct and reflected signal, said angle of elevation, and said altitude of said given point.