Abstract: An audio speaker in a cabinet is provided having an internal baffle movable on a track and driven by a motor. The movement of the internal baffle is controlled externally by controls mounted on the speaker cabinet. Selective movement of the internal baffle results in a change of the resonant frequency of the speaker/cabinet combination thereby selectively changing the characteristic of the reproduced sound.
Abstract: An office organizer comprising writing instruments, a calculator, note pad, a calendar, and so on is mounted on the conventional sun visor of a motor vehicle. The organizer includes a hinged panel permitting it to be swiveled to an open position shielding the side window of the vehicle. In an alternatively preferred embodiment, a series of supplemental hinged panels are provided to increase the capacity of the organizer. The hinged panels preferably are transparent and suitably optically coated to provide a safe field of vision when they are unfolded and to afford protection from the harmful effects of sunlight.
Abstract: A process for recycling household waste, garbage or trash into useful articles including in one preferred embodiment the steps of collecting the waste material, feeding the waste material into a pulverizer to convert the material to a powdery mass, adding water to the mass to form a slurry, adding a binder to the slurry to inhibit bacteriological growth, pouring or otherwise forming the slurry into a useful shape such as a block, or sheet, and allowing the formed shape to air dry under relatively low humidity. The resulting useful article may then be used as a building block, wall board, ceiling tile and so on. In an alternative example, the binder is added directly to the pulverized waste material to produce a useful article such as a flexible roof shingle.