Automatic dispensing nozzle adapted for vapor recovery
US3996977A · kind A · utility
15Cited by
1References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 11, 1975 |
| Grant date | Dec 14, 1976 |
| Priority date | — |
| Expiry date | Aug 11, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67D7/54
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In order to prevent malfunctioning of an automatic liquid fuel dispensing nozzle which is being used for vapor recovery while dispensing, the pressure inside the tank (into which liquid fuel is being dispensed) is used as a reference pressure for the actuating diaphragm of the nozzle cut-off arrangement, rather than using atmospheric pressure for this purpose. Displaced vapors from the tank are directed through a vapor recovery boot having a flexible, exterior cylindrical sleeve and an interior of reticulated material which provides passageways for the vapors to travel through.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.