Abstract: A portable, reusable combat bunker formed of rotationally molded hollow plastic modules temporarily joinable by wooden beams and metal brackets. In one form, there is a C-shaped base module and a rectangular cover or "ceiling" module. The modules are assembled at a site and at least partially filled with water or sand. When the bunker is to be moved to a new location, the water or sand is drained, the modules dissembled and moved. Double headed nails facilitate dissembly.

Abstract: A multi-module radiation detecting device, a radiation detecting module for incorporation in a multi-module radiation detecting device, and a method for assembling a multi-module radiation detecting device are provided. The radiation detecting module includes a carrier substrate and a radiation detecting tile mounted over the carrier substrate. The module includes interconnection structure for connecting radiation detecting elements in the radiation detecting tile to conductive contacts on a base substrate. The module facilitates attachment and detachment of the module relative to the base substrate and relative to a test fixture used in test and burn-in operations. The module is constructed to isolate the radiation detecting tile from thermal and/or mechanical stresses produced at the interconnection interface during attachment and detachment for test and burn-in, assembly, and rework operations.

Abstract: An elongated hollow rotationally molded high density polyethylene highway barrier has two elongated generally parallel sidewalls, two generally vertical end walls, and a plurality of longitudinal reinforcing members extending from one end wall to the other. The longitudinal reinforcing members extend from respective vertical end walls and terminate in loops which may be joined to like loops on an adjacent barrier for interconnecting the barriers. The longitudinal reinforcing members are typically steel cables. In one form, both end walls have central vertical notches arranged so that the notch end of one barrier may be aligned with the notch end of another barrier and the two barriers moved toward one another with the notches aligned. In this form, there are two steel cables passing through longitudinal holes in each barrier to be joined within the two aligned end notches. In another form, one barrier end is notched vertically while the opposite end has a central vertical protrusion.

Abstract: A pool cue with a sight or aiming aid integrally associated therewith in the form of a narrow straight line centered along the top of the cue to be aligned with the ball, pocket in the background, or similar target. The cue is formed as two separate pieces of about the same length which screw together. The front piece is a tapered metal tube or rod terminating in the tip which strikes the ball. A cold-roll-forming machine is used to pinch the front piece together deforming the cross-section from a circle and creating a top line for sighting or alignment purposes.

Abstract: A multi-branch digital optical switch having three branch waveguides through which light may exit. The multi-branch digital optical switch includes a main waveguide, two side branch waveguides, and one center branch waveguide. The two side branch waveguides diverge symmetrically from the center branch waveguide at angles which are sufficiently small to allow modal evolution through the switch to be substantially adiabatic. Electric fields are used to raise the index of refraction of one side branch waveguide above the index of the center branch waveguide and to lower the index of refraction of the other side branch below the index of the center branch waveguide. The switch has an extinction ratio of 700:1 (28 dB) between its two side branches.

Abstract: A windowing control for a video display includes a programmed controller, a video display including a screen and a raster for scanning the screen, a first memory having a first area for storing data to be displayed in a first window defined on the screen and a second area for storing data to be displayed in a second window on the screen and a second memory for storing the addresses of the data to be displayed in the first and second windows and the transitions between the windows. The controller includes a processor programmed to load data into the first and second memory means and a memory controller for initiating the transfer of data from the first and second memory to a pixel multiplexer. The processor is also programmed to load new address data into the second memory means for each complete raster scan so that the position of the data within the window has the appearance of horizontal (panning) or vertical (scrolling) movement.

Abstract: A computer work station includes a generally planar base plate with an upstanding easel connected to the forward end of the base plate. The easal has a projecting lip which will support documents or other copy in an upright position for viewing by the user of the work station. In the preferred embodiment, the easel is connected to a support member which is slidably connected to the base plate to permit transverse lateral slidable movement of the easel with respect to the base plate. The easel is adjustably connected to the support member to permit vertical adjustable movement of the easel with respect to the base plate.

Abstract: The disclosed invention provides a means for controlling film flatness at r interfaces in the aperture where the film is used as an imaging medium between film holder plates, such as aperture plates. The film is held flat by lateral tension applied outward in all directions from the center portion of the area of the film being viewed by rubberized type O-rings in grooves on each of the aperture plates being clamped against the film by various clamping direct transverse pressure means. The lateral tension is caused by the stretch of the O-ring outward from the center of the aperture by the shape of grooves in the plates constraining any inward movement but providing bias movement of the O-rings outward.

Abstract: A terminal block, to be used to connect a first series of electrical conductors to a second series of electrical conductors which comprises a base block, a cap block disposed on said base block, the cap block is removably connected to the base block. A plurality of cap contacts are disposed in the cap block. The cap contacts are electrically isolated from each other. A plurality of base contacts are disposed in the base block. The base contacts are electrically isolated from each other. The base contacts retain and are in electrical contact with the cap contacts on a one to one basis.