Abstract: The device comfortably supports the hand of the user while the thumb and fingers are associated with keys, a trackball, and a scrolling wheel carried on the device. The overall configuration of the device and the arrangement of these actuators permits the user to operate all of the functions provided by the actuators while the forearm is in a neutral posture zone between pronation and supination of the forearm, and the wrist and fingers are minimally extended and comfortably flexed, respectively.

Abstract: A battery charger for a lead acid battery having a power supply with an input connected to an AC signal and an output connected to the battery. The power supply provides a charge current to the battery. A clock connected to the AC signal provides clock pulses having transitions synchronized with zero crossings of the AC signal. A voltage monitor connected to the battery detects a battery voltage substantially simultaneously with a zero value of the charge current. A charge mode control is connected to the clock and the voltage monitor for commanding different battery charge currents. The voltage monitor includes a temperature compensation circuit. The battery charger includes a display module that can be placed at a location remote from the battery charger and convenient to the user.

Abstract: A boat-supported water misting and cooling apparatus, the boat including tubular framework closely associated with the useful open areas of the boat. The apparatus includes a plurality of water misting nozzles each of which discharge pressurized water as a very fine mist. A flexible water (micro) tubing is operably connectable to each misting nozzle for dispensing pressurized water therefrom, the water tubing also being connectable at the other end thereof to a pressurized water source. Retaining clips are each connectable to a section of tubular framework to support the misting nozzles and water tubing adjacent each open area of the boat whereby mist discharging from the misting nozzles is distributed to cool occupants within each misting zone by evaporation substantially before skin or boat surface contact thus avoiding any substantial water buildup.

Abstract: A swimming pool screen enclosure-supported water misting and cooling apparatus, the screen enclosure including tensioned fabric screen panels held between spaced apart elongated upright and overhead rigid frame members. The apparatus includes a plurality of water misting nozzles each of which discharge water under pressure as a very fine mist. A flexible water tubing is operably connectable to each misting nozzle for delivering pressurized water to each misting nozzle, the water tubing being connectable to a pressurized water source. A plurality of retaining clips are each connectable to an overhead frame member to support the misting nozzles and water tubing overhead of the swimming pool and adjacent deck area within the screen enclosure whereby mist discharging from the misting nozzles is distributed downwardly to cool occupants within the screen enclosure without substantially wetting any of the screen enclosure contents.

Abstract: The device comfortably supports the hand of the user while the thumb and fingers are associated with keys, a trackball, and a scrolling wheel carried on the device. The overall configuration of the device and the arrangement of these actuators permits the user to operate all of the functions provided by the actuators while the forearm is in a neutral posture zone between pronation and supination of the forearm, and the wrist and fingers are minimally extended and comfortably flexed, respectively.

Abstract: A graded leaky coaxial cable comprised of a center conductor, a dielectric surrounding the center conductor, and a braided conductive shield woven around and surrounding the dielectric. The shield has progressively fewer ends along its length, whereby progressively larger non-conducting gaps are formed separated by closely woven groups of carriers, thus facilitating controlled penetration of a radial frequency field through the shield.

Abstract: A method of producing a leakage graded coaxial cable having a braided shield, in which ends of the shield wire are dropped as braiding progresses. Gaps in the shield having progressively increasing size are produced through which the radio frequency field leakage occurs, which facilitates providing a constant radio frequency field around the cable. The cable is coated with a jell flooding agent prior to extrusion of its protection jacket, which fills the interstices and gaps of the shield, and solidifies to a waxy, semi-resilient consistency. The resulting cable can be coiled and flexed, maintaining its shield reliability, and rejects water and fluids in case pinholes in the jacket occur.