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 |
| 5520647 | Rapid withdrawal catheter This invention is directed to a balloon dilatation catheter which comprises (i) a first, inflation lumen extending therethrough and having distal and proximal ends, the distal end of said first lumen opening into and being in fluid communication with the ... | 05/28/1996 |
| 5474537 | Inflatable shaft catheter The invention herein is directed to a dilatation catheter comprising a steering wire, a dilatation balloon encompassing the said steering wire, and a flexible, inflatable catheter shaft concentric to the steering wire and in fluid communication with the b... | 12/12/1995 |
| 5315747 | Method of preparing a balloon dilatation catheter This invention relates to the preparation of a balloon dilatation catheter which comprises blowing a length of double lumen tubing to produce a double lumen catheter piece having distal and proximal ends and having a first lumen and a second lumen; cuttin... | 05/31/1994 |
