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 |
| 5860252 | Arrangement at self expanding booms A valve mechanism for self-expanding booms. The mechanism is preferably a mechanical expansion device that folds out the boom so that air flows into the boom to fill the boom. When the boom is folded, the air is pressed out of the boom. A novel feature is... | 01/19/1999 |
| 5711634 | Arrangement for a boom An arrangement for a boom for confining and collecting escaped oil, or the like, having a tubular casing and a shield part attached thereto. A plurality of spaced dividing walls are disposed within the tubular casing. The tubular casing is movable between... | 01/27/1998 |
