...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 |
| 7389188 | Fluid-structure coupled numerical simulation method and program for fluid-structure coupled numerical simulation storage device A fluid-structure coupled numerical simulation method is provided. The method uses a finite volume method employing an orthogonal mesh and a computer and memory setting a solid area based on a solid rate inside a mesh and at a tangent position to each mesh, includin... | 06/17/2008 |
| 6913438 | Pump lubrication system including an external reservoir A circulating lubrication system for a centrifugal pump, or other rotating equipment utilizing an oil sump, is disclosed. The lubrication system includes an external reservoir located distant from the main lubrication chamber, so that lubricating fluid from the main... | 07/05/2005 |
| 6408694 | Apparatus and method for on-line monitoring of a liquid density An apparatus and a method for on-line, real-time monitoring of a liquid density in a chemical process are provided. The apparatus is constructed by an upright, cylindrical housing that has a cavity defined therein for holding a liquid, and a density indic... | 06/25/2002 |
| 4905508 | Radiator hose hydrometer A radiator hose hydrometer includes a substantially horizontally disposed transparent tubular conduit interposed in the upper radiator hose of a liquid cooled engine. A hydrometer is mounted within the tubular conduit and is comprised of a series of arcua... | 03/06/1990 |
| 4680965 | Process for continuous density measurement A process for the continuous measurement of the density of a liquid by means of an aerometer body swimming in the liquid is characterized by the feature that the liquid is allowed to flow periodically at an increased flow rate past the aerometer body in o... | 07/21/1987 |
| 4077265 | Alcohol testers The present invention relates to a modification for circulating systems utilized with most alcohol dampening systems on lithographic printing presses and provides a fountain solution testing reservoir which maintains a constant solution level, constantly ... | 03/07/1978 |
| 3952761 | System for controlling density of liquids A system for accurately controlling the density of liquids in a processing system employing a chamber having a finned hydrometer with control activation mechanism floating in a reservoir of continuous sample solution, and having a plurality of chambers so... | 04/27/1976 |