Vein pump assembly for air maintenance tire
US9669671B2 · kind B2 · utility
0Cited by
12References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2015 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Sep 9, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C23/135
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An air maintenance tire and air pump assembly is provided including a tire and an elongate tubular air passageway enclosed within a flexing region of a tire sidewall. A plurality of check valve devices are spaced apart and positioned along the air passageway into multiple air passageway segments. A check valve membrane opens to allow pressurized air to directionally pass through the check valve device from an upstream passageway segment to a downstream passageway segment and closes to prevent air from passing in an opposite direction through the check valve from the downstream segment to the upstream segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.