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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 152/408 - With rim engaging end lugs


Subclass of Class 152 - Resilient tires and wheels
Definition: The ends of the split side flange are provided with lugs
No. of patents: 2
Last issue date: 10/23/2007


NumberTitleIssue Date
7284584Laterally installing wheel
A laterally installing wheel including a rim in which a rim main portion and a side ring are disconnectably coupled to each other at a coupling portion of the rim main portion and the side ring, wherein the coupling portion is constructed such that a gap between the...
10/23/2007
4512382Indexing and locking assembly for multi-piece truck rims
An indexing and locking assembly for a two or three piece truck tire rim and which rim presents at least a base and a locking ring which is attached to the base to complete the same for mounting of the tire upon the rim. Means are provided on the base for...
04/23/1985
 
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