Abstract: A network authentication system can be configured for sampling a plurality of signal samples from a device on a network, providing the plurality of signal samples to a first machine-learned model that is configured to determine a device fingerprint based at least in part on the plurality of signal samples, and providing the device fingerprint to a second machine-learned model that is configured to classify the device based at least in part on the device fingerprint.

Abstract: A boat drain plug system for attachment to a drain hole within a boat hull, the system including a flange including a threaded sleeve that fits within the drain hole and a threaded opening, a cylindrical drain plug adapted for individually coupling with the threaded sleeve and the second threaded opening wherein the drain plug may be fitted into the threaded opening to secure the drain plug when the sleeve needs to be completely open to allow water to exit a boat.

Abstract: A liquid atomizing nozzle is provided which is designed to receive various types of impellers in a chamber just preceding an orifice for the purpose of fracturing the liquid such as water to thereby facilitate the generation of fine fogs or sprays. The interchange of impellers and cleaning of nozzle and impeller chamber is simplified by the provision of a separate detachable inlet member to the nozzle which is designed to also retain the impeller in its chamber and to supply a jet stream of liquid thereto. The inlet member is in the form of a separate connector provided with an entry segment of greater diameter then a narrower exit segment connectable to the impeller chamber in a manner which encloses the chamber and retains the position of the impeller.

Abstract: A combined trailer-camper unit is disclosed and claimed herein suitable for towing behind a motorcycle, a small automobile or the like. A wheeled frame is provided having a body secured thereto. The body comprises a bottom section and a top section associated therewith and has a luggage rack provided atop same. The luggage rack is pivotally secured at a forward end of the body and in a luggage carrying capacity resides atop the body. The luggage rack can be pivotally moved to an extended position in front of the body top and is supported by a portion of the wheeled frame. In this position, the underside of the rack provides an extension that is co-planar with the top of the body to define a floor for sleeping or the like. A tent or other suitable structure that may be conveniently carried within the body of the unit can then be erected atop the body and luggage rack extension and secured thereto along the sides.