Abstract: A rotary energy storage device formed of discrete annular rings of anisotropic filamentary material disposed within the rings in a "wound" configuration, the upper and lower edges of each ring being attached alternately to the edges on adjacent rings in a radial orientation to form a structure having a bellows-like or convoluted cross-section. The present structure, due to the convoluted nature of the joined rings, is subject to unusually low radial stress within the material when rotating.

Abstract: A rotary energy storage device or flywheel structure is provided with a rim portion comprised of multiple rings or windings of filamentary material having high tensile strength and which are bonded or otherwise held together at a predetermined number of localized areas, such as at opposite ends of one or more radial spokes so that major portions of the individUal rings or windings may expand with minimum constraints during rotation of the flywheel structure.

Abstract: An integrated receiver and navigation instrument receives RF navigation signals and performs hyperbolic coordinate conversions utilizing a specially programmed computer to control the measurement modes and sequences and to improve the accuracy of the navigational information produced. An RF unit processes the incoming signal for use by a Digital Measurement unit which makes digital measurements at preselected points on the incoming signal waveform, and which can operate in various modes. The specially programmed computer controls the operating modes of the Digital Measurement unit, performs coordinate conversions, and provides navigational information using various parameters obtained in the receiver section of the instrument. The Digital Measurement unit modes permit a search for a desired signal, positioning of the measurement points on the signal and continuous tracking of the signal.

Abstract: A method and apparatus for sealing packages, e.g., microelectronics packages containing heat sensitive elements, by applying heat to melt solder on the peripheries thereof. At the same time heat is being applied to a package heat sinks are simultaneously engaged with the top and bottom portions thereof to carry off excess heat and thus protect the heat sensitive elements from damage.