Fuel cap
US6755316B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2001 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Mar 22, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S220/33
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
There are provided firstly a fuel cap which irrespective of its type has a structure that there is no transpiration of gasoline vapor until the cap is fully open and secondly particularly a bayonet-type fuel cap which has a structure that there is no eruption of fuel under a pressure difference between a internal pressure of the tank and atmospheric pressure. In each case the fuel cap consists of a closure 3 fitting into the opening of a filler neck 4 and a handle 2 integral with the closure 3, and an upper seal ring 10 and a lower seal ring 1 for sealing the filler neck 4 are each fitted individually to the closure 3 positionally apart from the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.