Abstract: An article of manufacture for protecting the lug nuts retaining wheels or rims of vehicles, particularly boat trailers and the like, from corrosion and, ultimately, freezing of the lug nuts, consisting of a flexible, water-impermeable cylindrical cap open at one end and adapted to be positioned over each lug/lug nut assembly securing the wheel or rim to the hub of the vehicle, the cap having an open end for positioning the cap over the lug/lug nut assembly, the end of the cap opposed from the open end being closed, the cap containing a viscous reagent for protecting the lug/lug nut assembly against corrosion prior to being positioned over the lug/lug nut assembly; and lug/lug nut assemblies including same.

Abstract: An emergency floatation system for a water craft including an elongated inflatable buoyancy tube positioned within an interior volume defined by a contour molded cover whose perimeter is sealingly mated around a somewhat flat base member against the hull outer surface. One such assembly is connected and extending longitudinally along each side of the boat hull near the water line of the water craft. A source of compressed gas within the water craft inflates each buoyancy tube, triggered either manually or by a separate sensing unit responsive to a preselected sea water pressure or depth above the sensing unit as when the water craft is partially submerged.