...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 |
| 7390027 | Weatherproof compression connecting assembly for securing electrical metal tubing A water proof electrical connector assembly for securing metal tubing to a junction box or in an end to end connection having a connecting body with opposed open ends, and an electrical metal tubing secured to at least one open end. The open end includes a linear le... | 06/24/2008 |
| 7338087 | Connector fitting A connector fitting for fixing a longitudinal body, for example, a cable, a hose, a pipe, a corrugated hose to a wall opening. The connector fitting includes a chuck, which penetrates the opening and includes slits that extend in an axial direction. The chuck is rad... | 03/04/2008 |
| 7325838 | One-piece liquid-tight connector A liquid-tight electrical connector formed by a one-piece, zinc die cast member including a ferrule insertable into a conduit, and a sleeve body surrounding the ferrule to form a conduit receiving channel, the sleeve body having a strap section that can be drawn tig... | 02/05/2008 |
| 7080859 | Rain tight fitting for metal tubing A rain tight fitting for connecting electrical metal tubing to a panel. The rain tight fitting includes a tubular body having an inner bore and a rearward end. A threaded outer periphery and a seal ring seat are included on the rearward end. A seal ring is disposed ... | 07/25/2006 |
| 6988746 | Nut type raintight threadless couplings and connectors for electrical conduits In fittings designed to connect threadless electrical conduits, the improvement of providing raintight fittings, having a hollow cylindrical housing with a bore adapted to receive an end of a conduit to be connected with such a fitting and a compression ring with a ... | 01/24/2006 |
| 6448496 | Strain relief A new adapter and method for providing strain relief to and creating a liquid tight seal around a cable including a first nut with a tubular extension, the tubular extension having a plurality of deflectable arms, each of which are radically converged and... | 09/10/2002 |
| 5775739 | Electrical connector An improved electrical connector for fastening electrical mechanical tubing (EMT) to junction boxes and other similar electrical enclosures. The seat on the connector for the sides of the access hole in an electrical enclosure include two wedge holding ta... | 07/07/1998 |
| 4641863 | Connector for coupling a conduit to a junction box A connector for coupling a conduit to a junction box. The connector includes a one piece elongated body portion having a distal end for receiving the conduit and a proximal end for connection in an aperture of the junction box. A pair of radially projecti... | 02/10/1987 |