Abstract: An improved air scrubber has an improved, more efficient, more robust impeller and impeller housing for mixing incoming air with water, scrubbing the air with increased efficiency and lower mean time between failures. Also water flow through the system is improved to prevent loss of scrubbing performance and to reduce user workload. In addition to these improvements, the water intake system has been redesigned to use less water, prevent using too much water, and to prevent previously common errors that require users to drain water from the impeller housing.

Abstract: An improved air scrubber has an improved, more efficient, more robust impeller and impeller housing for mixing incoming air with water, scrubbing the air with increased efficiency and lower mean time between failures. Also water flow through the system is improved to prevent loss of scrubbing performance and to reduce user workload. In addition to these improvements, the water intake system has been redesigned to use less water, prevent using too much water, and to prevent previously common errors that require users to drain water from the impeller housing.

Abstract: A linear generator having adjacent coils spaced apart no more than approximately 6 millimeters, and a magnet that moves through the coils. The magnet has a height that is greater than a combined height of at least two of the coils. Preferably, a pair of series-connected coils are spaced apart a distance that equals the magnet height. Current induced in the series-connected coils is in phase. The generator may have a second magnet that is oriented to repel the first magnet and that moves at a slower speed than the first magnet. An electric energy storage device is preferably coupled with the coil and a battery charger that receives energy from the storage device when it reaches a charging level. The storage device preferably receives energy from the coil through a rectifier when a voltage level in the coil is greater than a voltage level in the storage device.

Abstract: A portable linear generator for use as a battery charging element inside a portable powered device using multiple permanent magnets arranged linearly with each magnet constrained to repel each nearest magnet, one of the magnets fixed at one or each end of the array, one or more of the magnets free to move along the axis of the array, a guide rod extending through the magnets having a low friction or low friction and diamagnetic surface, and coaxially wound coil or coils of magnet wire arranged to electrically connect outside the device.

Abstract: A bracing system protects and secures the internal components of a mobile communication system. The bracing system includes an upper housing comprised of a shock resistant material. The upper housing includes a monitor cavity, elevated portions surrounding the monitor cavity and formed in the upper housing, and elastomer sections disposed on the elevated portions. In addition, the upper housing includes a breakage resistant transparent material placed on the elastomer sections and in conformity with the monitor cavity, a display monitor being protected by the breakage resistant material, and a shock absorbing material disposed around the peripheries of the breakage resistant transparent material and the display monitor. The shock absorbing material is mounted to at least one of the breakage resistant transparent material and the display monitor.

Abstract: A bracing system protects and secures the internal components of a mobile communication system. The bracing system includes an upper housing comprised of a shock resistant material. The upper housing includes a monitor cavity, elevated portions surrounding the monitor cavity and formed in the upper housing, and elastomer sections disposed on the elevated portions. In addition, the upper housing includes a breakage resistant transparent material placed on the elastomer sections and in conformity with the monitor cavity, a display monitor being protected by the breakage resistant material, and a shock absorbing material disposed around the peripheries of the breakage resistant transparent material and the display monitor. The shock absorbing material is mounted to at least one of the breakage resistant transparent material and the display monitor.

Abstract: An optical scanner for use at a checkout counter determines information relating to products to be purchased, including coded label data. The scanner supplies the information to a cash register system. The scanner includes a scanner controller for reading coded labels on the products. The scanner further includes an interface circuit, mounted in said scanner and receiving power therefrom, for providing coded label data to said cash register system.

Abstract: A data gathering system for use in a checkout counter to determine information relating to products to be purchased and to provide such information to a cash register system includes a scale supported within the checkout counter for determining weights of products presented to the data gathering system. The scale includes a subplatter located below the upper surface of the checkout counter. An optical scanning arrangement is supported on the subplatter for reading coded labels on the products. A common interface circuit is responsive to both the scale and the optical scanning arrangement, for providing weight data and coded label data to the cash register system.