Abstract: Two embodiments of a connector that can be mated without regard for its orientation are disclosed. One embodiment is mated and demated autonomously as part of a system for recovering, docking with, recharging and re-launching unmanned aerial vehicles. Another embodiment is employed on the decks of vessels to facilitate mating and demating of various equipment providing different functions to reconfigure the vessel. Because both embodiments are configured for connection irrespective of angular orientation over 360°, they are especially suited for harsh environments including autonomous operation, rough seas, darkness and the like.

Abstract: An entirely wearable electrical connector for power/data connectivity. The principal element of a modular network is the wearable electrical connector, which is integrated into a personal area network with USB compatibility. Several wearable connector embodiments are disclosed. The first, an O-ring based version, was subsequently replaced by a more mature second version, which is based on anisotropic pressure sensitive conductive elastomer. Both are snap-style, low-profile, 360°-moving, round, blind operable plug-and-play, reconfigurable wearable connectors with power/data daisy-lattice-style connectivity. A third embodiment comprises a non-conductive elastomeric environmental seal. A fourth embodiment utilizes a self-acting, automatic shutter-type environmental seal. A fifth embodiment comprises a smaller version that resembles a conventional snap fastener commonly used on clothing.

Abstract: An improved stacked rotary connector assembly wherein each connector comprises a pair of rings and the rings of each rotary connector thereof are individually split and mechanically separable. Because the input and output rings are each split and separable, any one rotary connector may be removed from the stack without requiring removal of any other rotary connector and without disturbing the input/output buses of the assembly.

Abstract: A holographic recording material, comprising a dichromated gelatin-polymer graft, is used in a volume hologram. The gelatin may comprise naturally occurring gelatin primarily made up of glycerin, proline, and hydroxyproline. The polymerizable monomers used to make up the gelatin polymer graft may comprise 2-hyroxyethylmethacralate, acrylamide, acrylic acid, or vinyl acetate.