Hourglass type air spring assembly
US11287005B2 · kind B2 · utility
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9References
9Claims
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Key dates
| Filing date | Aug 2, 2018 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Dec 27, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F15/0232
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An hourglass type air spring assembly includes an upper cover plate, an air bag, an upper end plate and a lower end plate. An outer periphery of the upper cover plate is connected with an outer periphery of the upper end plate through the air bag. A low-position hourglass elastomer and a high-position elastomer which are integrally formed are connected with each other between the upper end plate and the lower end plate. An annular notch is formed between the low-position hourglass elastomer and the high-position elastomer, and an annular rigid partition plate matched with the annular notch is arranged in the annular notch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.