Inert gas fill nozzle and pressure relief valve
US5494084A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 1994 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Jun 27, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86356
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A thin elongated metal tube of a diameter less than the diameter of a inlet aperture within the top of a fuel tank and opening upwardly therefrom has a closed lower end inserted within the aperture. The metal tube is supported by a radially enlarged collar on the periphery of the metal tube intermediate of its ends, having a diameter in excess of the diameter of the fuel inlet aperture. Purge gas distribution openings are provided within the lower opposite end of the metal tube to distribute purge gas interiorly of the fuel storage tank. The weight of the distribution nozzle is set to balance axially upward lift forces developed during inert gas pressurization of the tank to prevent overpressurization and rupture of the tank when the gas pressurization of the tank reaches a predetermined level less than that causing rupture of the tank. Purge gas created forces acts on the thin elongated metal tube and the collar to raise the collar off of the aperture sufficiently to axially unseat the collar from the inlet aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.