Tire with multi-layer insert
US11760136B2 · kind B2 · utility
0Cited by
57References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2019 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Aug 12, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C19/002
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A noise damper includes an open cell foam having a circumferential first tier and an interposed circumferential second tier including blocks and voids. The first tier has a radial height that is 3.0-8.0% of a section height and a first axial width. The second tier has a radial height that is 3.0-12.0% of a section height and a second axial width. The blocks span 10-30% of the second tier's inner circumference and the voids span 70-90% of the second tier's inner circumference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.