Method of making pressure-tight seal for super alloy
Abstract
Abstract A pressure-tight seal for a joint formed by abutting edges of sheets of super alloy is formed by depositing by means of flame spraying on said joint a powdered alloy comprising 4.5 percent by weight of aluminum and the balance nickel. A storage compartment for liquified gases such as hydrogen stored at temperatures of 400*F comprising a storage tank for said gas surrounded by a layer of fibrous insulation material which is impregnated with carbon dioxide frost and an outer skin of super alloy sheet provided with one-way check valves to release carbon dioxide gas outside the storage compartment when a pressure of 1/2 to 1 pound per square inch is reached is disclosed. Joints of the outer skin of super alloy sheet are sealed by flame spraying them with the powdered nickel aluminum alloy to a thickness of about 0.040 inch.
Inventors
- 👤 R Little
Bibliographic Details
Claims Analysis
Total Claims: 4References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |