Abstract: An impermeable, stainless steel, high chrome content container, with an inside surface coating of photo-voltaic elements comprising PN junctions upon which photons and/or electrons are impinged for conversion to electrons to produce useful electric energy; and containing an ionizing radiation energy source surrounded by an ionizable material to induce the ionizable material to emit a photon and/or electron for deposition on the PN junction elements to convert into electrical energy.

Abstract: A rotary airscrew having a central hub with coaxial first and second counter-rotating drive shafts, a first set of a plurality of non-lift blades connected to the first drive shaft for rotation to be rotated for moving air therewith, a second set of a plurality of primary airfoil blades connected to the second drive shaft, to be rotated counter to the rotation direction of the plurality of non-lift blades, and spaced apart from the non-lift blades with a small clearance distance to allow non-contacting counter-rotation, and a ring for supporting the first and second sets of blades with a small clearance distance between the ends as they are rotated.

Abstract: This invention deals with the problem of extracting potentially potable relatively salt-free water from seawater or brackish well water in areas where little or no power supplies exist. The object is to draw such water through a special filter that permits the passage of the water while leaving the salt behind, enough so that the remaining small amount of salinity is considered not objectionable for drinking purposes. This invention would have great potential as stand-by equipment in the after-math of coastal typhoons and hurricanes, when all power is lost, and water supplies are contaminated by flood tides from the sea. It would also have an application to remove most of the radio-active salts or residue left over from a nuclear accident or explosion that would contaminate water supplies.This invention would have great application in emergency situations at sea.