Fuel cap with duckbill valve
US11274757B2 · kind B2 · utility
0Cited by
37References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2020 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Apr 17, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2015/0438
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A valve member provides for the flow of vapors from a fuel tank of an internal combustion engine to escape the fuel tank. The valve member may include a valve and a boss or spacer. The valve is configured to selectively control the flow of vapor from the fuel tank. The boss or spacer is positioned in a predetermined relationship to the valve, and the boss or spacer prevents a deformation of the valve from disrupting the selectively controlled flow of vapor from the fuel tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.