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 |
| 4895331 | Shelf bracket A cantilevered shelf support for installation on a vertically extending channel having a face containing a longitudinally extending slot bordered by inwardly projecting flanges. The shelf support has a mounting bracket which is aligned and bolted to the v... | 01/23/1990 |
| 4858824 | Air conditioner The air conditioner comprises a manual or automatic sensible temperature detection decision means consisting of a temperature detector for detecting room temperature, a hot/cold selector switch, a radiant heat detector, an air current detector and an outd... | 08/22/1989 |
| 4845855 | Instrument for measuring vertical distances A measuring instrument having a column 2 mounted on a base and a sliding unit 3 adapted for vertical displacement on said column 2. The sliding unit 2 has a housing 9 and a plate 10. The housing 9 is suspended on the column 2 by means of a cable 7 which i... | 07/11/1989 |
| 4833566 | Plastic jacket for utility mounting pedestal A pedestal for mounting a utility supply device adjacent a mobile home includes a metal post partly embedded in the ground, carrying the supply device on an upper end thereof; and a plastic jacket inserted in the ground, receiving the ground-engaging port... | 05/23/1989 |
| 4829379 | Picture image signal compensation device A picture image signal compensation device for devices such as image scanner, facsimile and etc. comprises a whiteboard provided before manuscript in which an average value of white level signals of said whiteboard with unusually low values eliminated in ... | 05/09/1989 |
| 4817963 | Hot melt strip seam sealing method A method of sealing a joint between two adjacent members comprises the steps of forming a gap between the members to be sealed and then introducing a bead of resilient solid material into the gap. The bead is subsequently treated to render it temporarily ... | 04/04/1989 |
| 4807650 | Make-up coverture A coverture for protecting a portion of the face from make-up during application of the make-up to the face comprises a shield having at least one make-up impervious section and a means for holding the shield adjacent the protected portion of the face dur... | 02/28/1989 |
| 4588628 | Floor mat There is disclosed an improved floor mat construction, including a floor mat having at least one carpeted surface to which is attached, via suitable attaching means, a retainer to prevent movement of the floor mat relative to a vehicle carpet. The retaine... | 05/13/1986 |
