Fuel tank venting
US4673009A · kind A · utility
4Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 1986 |
| Grant date | Jun 16, 1987 |
| Priority date | — |
| Expiry date | May 27, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67D7/0476
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A fuel tank has a filler neck terminating in an upwardly opening well, and a paddle overlying the well has a pivoted arm extending adjacent a vent valve. The arm causes the valve to restrict flow through a vent orifice when fuel is not being introduced through the filler neck, but pivots to allow the valve to open the orifice in response to introduction of liquid fuel through the filler neck. A float has an actuating member adapted to cause the valve to restrict flow through the orifice when the level of liquid fuel in the tank approaches the maximum level desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.