A nesting chair includes a self-supporting base with a pair of leg members. Each leg member has a front leg portion, a rear leg portion, and a generally horizontal portion. A transverse member extends between and interconnects the horizontal portions of the leg members. The transverse member and the first and second leg members together define a self-supporting base. A seat cushion is supported in a generally horizontal position by the seat base. A generally L-shaped back support bracket has one...

The key actuation system is designed for use with a keyboard instrument of the type that has a key fulcrum which pivotally supports multiple keys. Each key has a front end forward of the fulcrum which is to be depressed by a player, and a rear portion which is positioned rearward of the fulcrum and it pivots upwardly when the front end is depressed. The key actuation system includes a pull solenoid with a coil portion and a piston. When the coil portion of the solenoid is energized, the piston i...

The present invention provides a virtual world that makes surfing the World Wide Web more satisfying and pleasurable to the user. The invention is arbitive to graphically and functionally restore a user's sense of proximity or distance while surfing the web. The user is presented with the ability to traverse a two- or three-dimensional geographic terrain. Matrix, including common metrics and customized metrics, are used to enhance user interactions such that the user's overall experience during ...

The present invention provides a device for reinforcing the rear end of a vehicle having a ladder-type frame. The device includes a first bar that is adapted to be secured between the left side rail and right suspension attachment of the vehicle frame and a second bar adapted to be secured between the right side rail and left suspension attachment such that the first and second bars are mounted to the frame in a crosswise fashion with respect to each other between the side rails. The device is m...

A container for gasoline for use in a two-cycle engine has indentations formed on its four sides so that when viewed from any of the four sides it presents the appearance of the Arabic numeral two, indicating that it is for use with two-cycle engine fuel. The container includes a recess in one of its sidewalls for receiving a smaller container for oil for mixing with the gasoline before insertion in the engine. The oil container may be similarly contoured to give the appearance of the Arabic num...

Techniques for removing distortion in an AC magnetic tracker identify a characteristic frequency in the distortion environment which is then utilized to extract distortion components from the tracker receiver signals so that the corrected position and orientation can be calculated. A multiplicity of alternative techniques for determining this characteristic frequency are disclosed, several of which can be done during operation without interrupting system operation while others can be done off-li...

Liquid feed flame spray pyrolysis of solutions of a metal oxide precursor which is an alkoxide or C.sub.1-6 carboxylate and at least one second metal oxide precursor and/or second metal compound dissolved in oxygenated solvent by combustion with oxygen lead to the formation of sub-micron mixed-metal oxide powders not accessible by other processes or by the pyrolysis of metal chlorides or nitrates. The powders have numerous uses in advanced materials applications including particulate solid state...

A protective kneepad for detachable attachment to an attaching portion mounted on the exterior of the workman's pants in which the kneepad is larger lengthwise of the pants that the attaching portion for a range of adjustment both longitudinally and laterally greater than the dimensions of the detaching portion. The kneepad is detachable from the work pants allowing ease of movement and laundry of the work pants without any interference from the kneepad. The method of attachment of the system to...

An electronically controlled pedal assembly with hysteresis includes a housing having a front wall and an arcuate friction wall having a radius of curvature centered on a pedal arm pivot point and extending from an edge of the front wall. The pedal assembly also includes a pedal arm rotatably supported at the pedal arm pivot point by a mounting means operatively connected to the housing, and a hysteresis generating means pivotally mounted to the pedal arm. The pedal assembly further includes a s...

An Artificial Disc Replacement (ADR) includes a body and/or outer wall that is fortified, reinforced, stiffened or otherwise strengthened with a higher durometer, for example, where it rests against a weakened or deficient area of the annulus fibrosis (AF). The "less stiff" portions facilitate the transfer of load to the healthier portion of the AF. A hydrogel or other compressible and/or resilient material may be used within the center of the ADR to selectively transfer the forces to the outer ...