Abstract: A method in treating aqueous feedstream in diverse plant site environments is disclosed for improving filter flux rates, cleaning filter media and prolonging useful operative life of media. In preferred embodiments the method is provided with steps for contacting, reacting, pressurizing and equalizing ozone and feedstream within a central area or multiple areas and sustaining high pressure throughout the system to achieve qualitatively and quantitatively improved permeate products, and reject for recycle. The method and system provide an improved cleaning and processing system characterized by an ozone-concentrated, homogeneous single phase liquid conversion of a generated ozone gas mixture and a feedstream source containing organic and inorganic pollutants. The method improves and monitors ozone oxidizing power and reflecting ORP values, and provides further media cleaning and improved oxidation reactions for attack on pollutants on each cycle/recycle operation.

Abstract: A space pod and space saucer module assembly, for children's use and recreational enjoyment, is disclosed, which can be utilized solely or in interaction with another children's playhouse or structure. In preferred embodiments, a truncate or cross-sectionally accessible enclosure is provided having an elevated base support. The wall, floor and roof of the invention's enclosure have optionable, light-transmitting or see-through characteristics; and also provide an interior recreational play area inside the enclosure and optionable space-vehicle, simulating furnishings, such as control panel and seating. The assembly can be utilized with coupling members, for attachment to a neighboring structure, and for attachment to and additional support of its own guide support. A coupled or secured pathway or stairway structure is also provided in preferred embodiment for entrance to the play area of the invention's recreational-play enclosure.

Abstract: A grade list and averaging, hand-held calculator is disclosed for use by teachers and others in quickly determining the numeric grade of a test-exam, or equal parts constituting a ‘whole’ to be analyzed, and the average of past numeric grades. In the determination of the numeric grade of a test-exam, for example, the calculator allows the entry of the total number of problems on the test, and, corresponding to this total number of problems, displays first and additional lists of potential numeric percentage grades correlating to respective first and additional ranges of problems wrong within the original number of problems on a test entered into the calculator. Each of the first and additional lists are displayed simultaneously as multiple numeric grades, one after the other on the display of the calculator. In one embodiment, ten potential grades are viewed simultaneously.

Abstract: A Self-contained, portable therapy and game case assembly having sliding and opening sections and compartments and portions of the therapy assembly which can be utilized together or separately is disclosed. The therapy assembly is provided for use with various symbolized or illustrated inlay and sliding sheets, for testing and prompting selected skills and associative thinking. The invention is provided as a coupled and portably transportable first and second subassemblies.