Abstract: The strake fence flap is a device which may be tailored to the aircraft to augment the low-speed lift of canard-configured general aviation aircraft with little or no longitudinal trim change and no cruise drag penalty. The strake fence flap is deployed along the upper surface of each of the strakes on the canard aircraft. The strake fence flap is hinged along its lower edge which allows it to be retracted and extended as needed. In the cruise configuration, the strake fence flap is folded flush with the strake upper surface. For deceleration or landing where increased lift and drag are required, the strake fence flap is extended. The frontal area of the strake fence flap becomes exposed resulting in additional drag. The geometry and positioning of the fence causes the flow to separate from the upper edge of the fence and to roll up into a vortex which trails over the strake. The intense suction which accompanies the vortex acts directly on the strake upper surface, thereby significantly increasing the lift.

Abstract: Base unit and receptacle for holding various household items. The base unit is comprised of a surface with channels having inwardly projecting flanges. Receptacles have a flange capable of being inserted into the channel in the base. The flange on each receptacle is rectangular in shape, preventing the receptacle from being rotated when in the base channel. The invention is particularly useful for persons who have difficulty unscrewing lids on bottles due to limited use of their hands.

Abstract: A method and device for separating trace amounts of relatively large molecules in the gas or vapor state from a low molecular weight gas or vapor is disclosed. The method and device are particularly useful for interfacing a gas or liquid chromatograph to a mass spectrometer. The device comprises an enclosed chamber to which a vacuum system is attached. Two sample transfer columns are inserted through opposite sides in the chamber. The first column has an outer diameter smaller than the inner diameter or bore of the second column and the end of the first column may be moved into the bore of the second column. A second vacuum source is applied to the second transfer column. When a sample mixture in the gas or vapor state passes from the first column into the second column, the fractional split in the bulk or carrier stream between the two vacuum systems is accurately controlled solely by the diameters of the two columns and the extent to which the first column in inserted into the second.

Abstract: A device for sensitive analysis of unknown organic samples is disclosed. The device is particularly useful as an interface between a gas chromatograph and a mass spectrometer which has a high pumping capacity. The device comprises an interface internal to the mass spectrometer which may either be attached directly to an inlet probe inserted into a mass spectrometer or directly to the source body of a mass spectrometer. In both cases, the sample goes directly into the source cavity and an auxiliary vacuum system is not required for sample enrichment. For mass spectrometers with marginal pumping capacity, or when very low source pressures are required, the vacuum system may be augmented by designs which either partially or completely isolate the source and interface exhaust pumping systems from each other.

Abstract: Device for tracking daylight and projecting it into a building. The device tracks the sun and automatically adjusts both the orientation and area of the reflecting surface. The device may be mounted in either a wall or roof of a building. Additionally, multiple devices may be employed in a light shaft in a building, providing daylight to several different floors. The preferred embodiment employs a thin reflective film as the reflecting device. One edge of the reflective film is fixed, and the opposite end is attached to a spring-loaded take-up roller. As the sun moves across the sky, the take-up roller automatically adjusts the angle and surface area of the film. Additionally, louvers may be mounted at the light entrance to the device to reflect incoming daylight in an angle perpendicular to the device to provide maximum reflective capability when daylight enters the device at non-perpendicular angles.

Abstract: The invention is a game comprising a shaft having a U-hook at one end, a small wheel, and at least two marking pegs. The wheel is placed on the floor or ground on its edge, and the U-hook is placed around the lower portion of the wheel. A player holds the end of the shaft opposite the U-hook, and pushes the wheel, causing it to roll. Great skill and dexterity must be used to keep the wheel from tipping over and falling out of the U-hook while it is rolling. The player(s) who are able to keep the wheel rolling for the longest distance win. Marking pegs are used to designate distances or set courses the wheel must traverse.

Abstract: Disclosed is a template for forming tapered sliding dovetail joints. The template is particularly useful for making tapered sliding dovetail joints using powered hand tools, such as a router. The template has a longitudinally extending groove which is narrower at one end than at the other. To form a sliding dovetail groove, a workpiece is placed underneath the template, and a dovetail cutter is passed along the sides of the groove. The template also has two longitudinally extending grooves which are tapered towards each other. To cut a sliding dovetail tongue, the end of a workpiece is placed below the template so the edges of the workpiece are exposed through the grooves, but the middle of the workpiece is covered by the template. A dovetail cutter is passed along the sides of each groove, creating a dovetail tongue. The template may also be secured to a dovetailing jig, to provide secure alignment and holding of the workpieces against the template.