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Class 152/23 - Coil springs


Subclass of Class 152 - Resilient tires and wheels
Definition: In a spring wheel having a spring encircling rigid annulus
No. of patents: 1
Last issue date: 07/05/2005


NumberTitleIssue Date
6913050Wheel with a spring unit
A wheel with a spring unit includes a rim, a disc and a plurality of spring units. Each spring unit is directed circumferentially and arranged in an annular space between the rim and the disc. Each spring unit includes at least one metal spring. The metal spring may... 		07/05/2005
 
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