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...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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Class 152/283 - Retaining ring secured


Subclass of Class 152 - Resilient tires and wheels
Definition: The rim secured transversely extending leaf springs are
No. of patents: 1
Last issue date: 06/25/2002


NumberTitleIssue Date
6408912Bicycle wheel assembly
A bicycle wheel assembly includes a hub disposed coaxially in a metal rim. A spoke unit interconnects the hub and the metal rim. The metal rim defines a tire-retention groove to receive a foam tire therein. The foam tire has an inner section disposed in t...
06/25/2002
 
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