Automatic shut-off nozzle with vapor return seal
US4418730A · kind A · utility
20Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1982 |
| Grant date | Dec 6, 1983 |
| Priority date | — |
| Expiry date | Mar 12, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67D2007/545
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Liquid flow through an automatic shut-off nozzle is automatically stopped if the fill pipe opening of the tank being filled is not sealed so that vapor return means can carry vapor from a tank being filled to vapor recovery equipment. If the sealing means is not effective when the spout is disposed in a fill pipe opening, a valve, which controls the liquid flow through the body of the nozzle, is automatically shut off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.