...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 |
| 6942400 | Image pickup apparatus with mechanism for stably holding image pickup apparatus This invention relates to an image pickup apparatus having a stable holding mechanism which can pivot through a predetermined amount to switch between two predetermined positions in using and repositing states, and enables stable phototaking operation. The image pic... | 09/13/2005 |
| 5529231 | Adjustable car carrier A carrier attached to a vehicle to enable articles such as bicycles to be transported. The carrier comprising an article support member rotatably coupled to a substantially horizontal base member. The base member is designed to be securely inserted within... | 06/25/1996 |
| 5418609 | Apparatus and method for mounting a range finding instrument to a theodolite telescope An apparatus and method for mounting a range finding instrument to a theodolite telescope incorporates the necessary geometry to enable a linear spring assembly to be able to accurately balance the mass of the range finder and theodolite combination rotat... | 05/23/1995 |
| 5358305 | Suspension system for automotive vehicle or the like A seat suspension is provided that has a damper unit which is connected between the seat and the chassis on which the seat is mounted. The damper can be switched between soft and hard settings. The damper switching is controlled based on the relative posi... | 10/25/1994 |
| 4792185 | Seat device A seat device having a cushion supported to be movable up and down to damp vibration, characterized in that the seated portion of the cushion is divided into front, center and rear parts which are connected bendably with one another, that one of the front... | 12/20/1988 |
| 4709896 | In-seat suspension The invention is a suspension system for a vehicle seat with structural features allowing the suspension to be contained within the confined space available in recreational vehicles and light trucks. The invention includes a generally horizontal moveable ... | 12/01/1987 |
| 4682749 | Adjustable copyholder with articulated arms An adjustable copyholder comprises a base and a cantilever arm having a plurality of cantilever arm segments attached thereto, and a copy support plate mounted at the free end of the cantilever arm. The cantilever arm is connected pivotally to the base. T... | 07/28/1987 |
| 4150588 | Dynamic vibration absorber This invention relates to suppression of vibrations in massive systems including large rotating elements such as induction fan rotors used in electric power generating plants. In particular, this invention relates to the provision of a tuned vibration abs... | 04/24/1979 |
| 4141530 | Platform rocking chair springs A platform rocking chair is provided by mounting a chair seat to a platform solely by a pair of flat fiber-reinforced springs extending from the sides of the platform to the sides of the chair seat. The rocker blocks employed in many platform rockers are ... | 02/27/1979 |
| 4060905 | Gauge for mounting window-shade brackets A gauge for accurately and quickly positioning window-shade brackets by retaining a bracket on the gauge, by magnetic attraction, at a predetermined distance from the top of the window frame to afford adequate room for the shade in its fully rolled positi... | 12/06/1977 |
| 4014533 | Resilient load-bearing support for a vehicle An improved vehicle-mounted support for isolating delicate loads from shocks and other disturbances imparted to the vehicle floor during movement thereof over rough terrain is described. A plurality of adjustable pneumatic springs are disposed in each cor... | 03/29/1977 |
| 3931910 | Closure lid for closing the opening of a food cooking receptacle A closure lid for effecting an air-tight seal of the opening in a receptacle for the pressurized cooking of food in high temperature, non-aqueous liquids, wherein the closure lid is manually positioned through said opening into the receptacle and is held ... | 01/13/1976 |