• Patent Title: Spiral spring wheel
  • Application No.: US16928209
    Application Date: 2020-07-14
  • Publication No.: US11351818B2
    Publication Date: 2022-06-07
  • Inventor: Sun T. Hong
  • Applicant: Sun T. Hong
  • Applicant Address: US CA San Jose
  • Assignee: Sun T. Hong
  • Current Assignee: Sun T. Hong
  • Current Assignee Address: US CA San Jose
  • Agent Douglas L. Weller
  • Main IPC: B60C7/20
  • IPC: B60C7/20 B60B9/08
Spiral spring wheel
Abstract:
A spiral spring wheel includes a ring spring and a leaf spring assembly surrounding an outer surface of the ring spring. A shoe is placed over the leaf spring assembly. The shoe sidewalls extend past the leaf spring assembly and tuck under the ring spring. Each torsion spring in a first plurality of torsion springs extends in a clockwise spiral shape from a flange to an inner surface of the ring spring. Each torsion spring in a second plurality of torsion springs extends in a counterclockwise spiral shape from the flange to the inner surface of the ring spring.
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