Automatic shut-off nozzle having an arrangement for sensing the presence of liquid in vapor return means of the nozzle
US4125139A · kind A · utility
8Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1977 |
| Grant date | Nov 14, 1978 |
| Priority date | — |
| Expiry date | Jun 3, 1997 |
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 when liquid is present at a predetermined location in the vapor return means. The automatic shut-off nozzle also stops flow in response to the tank being filled to a predetermined level with liquid or the pressure in the tank exceeding a predetermined pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.