Abstract: Underwater LED lights with enhanced cooling to allow the use of substantial numbers of high power LEDs. In all embodiments, the majority of the heat given off by the LEDs is transferred to the housing of the underwater light by heat transfer techniques other than by convection of the air or other gases within the enclosure, providing direct heat conveyance from the LEDs to or through the light enclosure walls, by conduction through a thermal conductor or by or as augmented by heat pipes to the inside wall of the enclosure or through the wall of the enclosure to the water. Various embodiments are disclosed.

Abstract: The Pole Position Sliding Pickup System changes the way tonal variety is arrived at by electric guitar players. Rather than installing multiple pickups in different positions in order to achieve a limited variety in tone, the Pole Position Sliding Pickup System uses a single pickup which can be moved quickly and easily to any position between the base of the neck and the bridge in order to achieve a much greater variety in tone, and create wah wah-like sound effects by manipulating the pickup at different speeds and distances. Not only are the variety of possible tones increased, but so is the ease with which they can be attained, because the method of sliding the pickup into place is easier than conventional methods of choosing stationary pickups.

Abstract: Underwater LED lights with enhanced cooling to allow the use of substantial numbers of high power LEDs. In all embodiments, the majority of the heat given off by the LEDs is transferred to the housing of the underwater light by heat transfer techniques other than by convection of the air or other gases within the enclosure, providing direct heat conveyance from the LEDs to or through the light enclosure walls, by conduction through a thermal conductor or by or as augmented by heat pipes to the inside wall of the enclosure or through the wall of the enclosure to the water. Various embodiments are disclosed.

Abstract: The Pole Position Sliding Pickup System changes the way tonal variety is arrived at by electric guitar players. Rather than installing multiple pickups in different positions in order to achieve a limited variety in tone, the Pole Position Sliding Pickup System uses a single pickup which can be moved quickly and easily to any position between the base of the neck and the bridge in order to achieve a much greater variety in tone. Not only are the variety of possible tones increased, but so is the ease with which they can be attained, because the method of sliding the pickup into place is easier than conventional methods of choosing stationary pickups.

Abstract: A system that illuminates water in a water display in broad daylight is described. The system may include a color filter that directs a desired color or range of colors onto the water. The source of light may be the sun or an artificial light source. Where the light source is the sun, a heliostat may be included to track the sun and reflect sunlight to the color filter. Other reflecting mirrors may be included to provide a line of sight between the light source and water display being illuminated.

Abstract: Underwater LED lights with enhanced cooling to allow the use of substantial numbers of high power LEDs. In all embodiments, the majority of the heat given off by the LEDs is transferred to the housing of the underwater light by heat transfer techniques other than by convection of the air or other gases within the enclosure, providing direct heat conveyance from the LEDs to or through the light enclosure walls, by conduction through a thermal conductor or by or as augmented by heat pipes to the inside wall of the enclosure or through the wall of the enclosure to the water. Various embodiments are disclosed.

Abstract: The present invention relates to a decorative water display having many degrees of freedom. The water display has one or more water display nozzles mounted so that the direction of the nozzle may be controlled such as by a computer. In the preferred embodiment, the pressure of the water delivered to the nozzle may also be controlled as desired. Also controllable with the nozzle direction is appropriate lighting to illuminate the discharge from the nozzle for night time use. The elevation of the entire assembly is controllable, preferably between an operative position, a withdrawn position totally below the water surface and a service position extending above the water surface. Various embodiments and features are disclosed.

Abstract: A blood pressure measurement apparatus comprises electronic circuitry which converts an output from a pressure transducer into a digital display for both the systolic and diastolic blood pressure of an individual. The output of the pressure transducer contains an electrical DC voltage component with a superimposed AC voltage component during arterial blood flow. Sample and hold and logarithmic scaling circuits are used to properly sense the AC voltage over a wide range of values so as to eliminate improper sensing due to noise. A digital output display shows the individual's systolic blood pressure while another display shows the current transducer reading which becomes set upon reaching the diastolic pressure. Control circuitry is used to sense occurrence of the systolic and diastolic pressures.In one embodiment, the circuitry is enclosed in a wristwatch type case which also includes a constrictable band and an integral air bulb, resulting in an easily portable wrist-worn blood pressure measuring device.