Abstract: This Ergonomically Improved Universal Valve Key Tool is used to open and close gate valves and ball valves within water and gas distribution systems. The valve key tool may be any length, made of strong material such as steel pipe. The valve key tool is manually operated, has no gas powered motor, but, enables the user to quickly and efficiently open and close valves. One hand stays stationary on the valve key stem while the other hand spins the handle around the stationary hand. There is an additional lever handle lower on the stem which allows initial leverage in order to get the valve moving. The moving arm of the user holds onto a spinning grip, thereby allowing ease of use and speed. The key end of the tool is formed such that mud and debris surrounding the valve will be displaced through vents at the top of the key.

Abstract: A display processing system for providing video signals for displaying an image is provided. The display processing system comprises input channels for receiving a plurality of component images, each component image being a portion of the complete image for display, the image data of each component image being defined by a view frustum having a clipping plane, and a combiner for combining the image data of the component images. According to the present invention, at least two clipping planes of two of the view frustums are non-coplanar. Such display processing system corrects for the defect of driving angular resolution to the edges of the field of view of a display system, in particular for large field-of-view display systems, and balances the overall system angular resolution by allowing each image generator channel to render to an optimal view frustum for its portion of the complete image.

Abstract: A projection system for projecting images is described. The projection system has an illumination system for generating an illumination beam comprising sequential color portions. The illumination beam is guided to a light modulating means based on light valves, which allows modulating an impinging illumination beam such that it comprises image information about an image to be displayed. The images are refreshed after an image frame time tframe. The illumination of the light modulating means for generating an image is substantially performed during a first time interval of the image frame time tframe. The latter results in an improved displaying of fast moving images.