Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 6932782 | Flexible splint A device for limiting movement of a joint. Once prepared, the device includes two tubular openings for encircling phalanxes on either side of the joint. The tubular sides are attached by a portion of the device that can cover either the top portion of the joint or t... | 08/23/2005 |
| 6903385 | Semiconductor structure having a textured nitride-based layer A semiconductor structure having a textured nitride-based layer. The textured nitride-based layer can be formed above one or more crystalline nitride layers and a substrate, and can be formed into any desired pattern. The semiconductor structure can be incorporated ... | 06/07/2005 |
| 6857234 | Masonry control joint guide A plumbing system and method for plumbing a control joint in a masonry wall. The plumbing system comprises: a bracket mountable to an interior wall surface, wherein the bracket includes an extension having a guiding system; and a vertically oriented plumb rod that c... | 02/22/2005 |
| 6853234 | Level shift circuitry having delay boost A level shift circuit that reduces PMOS to NMOS device contention whole decreasing output rise delays. The invention includes a device, comprising: a level shift circuit for shifting a signal at a first voltage at an input node to a second voltage at an output node;... | 02/08/2005 |
