Abstract: This disclosure relates to dielectric chaff materials or fibers which are small in character for packing and expandable on release to produce clouds of great cross section. Polymer materials are treated chemically and/or irradiated with nuclear or electronic radiation which partially decomposes the polymer. Upon release, the polymer is heated to create gas bubbles from within which expand the dielectric fibers to change the density and shape of the dielectric.

Abstract: In a conventional construction of an electron gun with quadrupole lenses, a grid part with elongated apertures all arranged in the same direction cannot be easily secured to alignment mandrels of circular cross section. As a result, grid movement during assembly can cause a misalignment that deteriorates the tube resolution. The present invention includes arranging circular and elongated apertures in the same grid part, and also alternately arranging circular and elongated apertures in adjacent grid parts, so as to secure the grid parts to the mandrels and automatically maintain the alignment during gun assembly. The aperture combinations described herein produce electron lens astigmatism of approximately the same strength and sign for each beam of an in-line gun.

Abstract: The present invention provides an improvement in a cathode-ray tube including a rectangular faceplate which has an exterior surface having curvature along both the minor and major axes. The faceplate also includes a cathodoluminescent screen on an interior surface thereof. At least in the center portion of the faceplate, the curvature along the minor axis is greater than the curvature along the major axis. In the improvement, points on the exterior surface near the ends of the minor and major axes, at the edges of the screen, lie in a first plane, and points on the exterior surface near the ends of the diagonals of the rectangular faceplate at the edges of the screen, lie in a second plane. The second plane is parallel to the first plane and is farther from the center portion of the faceplate than is the first plane.

Abstract: A deflection yoke for deflecting the electron beam of a kinescope includes conductors, portions of which are saddle-wound and portions of which are toroidally wound for reducing the length of conductor required for deflection, for reducing losses due to leakage fields, or both.

Abstract: A connector hinge for attaching oil spill containment booms having a male lindrical connector which fits loosely within a female cylindrical connector to allow easy movement of both connectors in both a vertical and horizontal direction. A resilient gasket is disposed within the male cylindrical connector such that the gasket forms an oil-tight seal between the male connector and female connector. The female connector is tapered along its length to allow easy disposition of the male member within its cylindrical cavity. Both the male and female connectors can be attached to a floating oil spill containment boom, a substantially immovable object such as a pier or jetty, or a floating tow assembly. The loose fit between the male and female connectors allows the connector hinge to adjust to tidal variations as well as additionally aiding in placement of the male connector within the female connector.