Automatic shut-off nozzle having an independent sensor arrangement for sensing the presence of liquid in vapor return means of the nozzle
US4245681A · kind A · utility
7Cited by
1References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1979 |
| Grant date | Jan 20, 1981 |
| Priority date | — |
| Expiry date | Feb 2, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67D7/52
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Liquid flow through an automatic shut-off nozzle is automatically stopped when the presence of liquid at a predetermined location in the vapor return means is sensed by an independent sensor arrangement. 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.