Leaf spring and method of manufacture thereof having sections with different levels of through hardness
US9890440B2 · kind B2 · utility
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70References
12Claims
0Family size
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Key dates
| Filing date | Feb 13, 2017 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Feb 13, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Leaf springs, and methods of manufacturing thereof, having first and second sections, spaced apart along the length of said leaf spring, said sections are through hardened and tempered to achieve, respectively different levels of finished through hardness, are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.