Automatic shut-off nozzle having an arrangement for controlling when automatic shut off occurs in response to pressure in a sealed tank
US4286635A · kind A · utility
13Cited by
2References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1979 |
| Grant date | Sep 1, 1981 |
| Priority date | — |
| Expiry date | Sep 20, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67D2007/545
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An automatic shut-off nozzle has a diaphragm responsive to the vapor pressure in a sealed tank to stop the liquid flow through the nozzle when a predetermined pressure exists in the sealed tank. The force of a spring, which acts on the side of the diaphragm not exposed to the vapor pressure in the tank, is adjusted to insure that the flow is stopped at the predetermined pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.