Insert member for dished tank bottoms in ships
Abstract
Abstract 1,135,876. Tank bottoms. KIELER HOWALDTSWERKE A.G. 20 March, 1967 [1 April, 1966], No. 12835/67. Headings B7A, B7M and B7S]. In a tank bottom (the internal non-load bearing shell of a thermally insulated tank for liquefied gas) comprising dished plate elements 2 joined along their edges to form expansion joints 3 and drainage flow channels 16, the junction between the mutually perpendicular expansion joints 3 at the channel 16 is provided by an insert member 5 comprising a plate 12 having one edge in the form of a Z-shaped flange 13 corresponding to half the expansion joint of inverted channel section 3 formed between two adjacent dished plate elements 2 and an expansion fold 15 of inverted channel section in the opposite edge portion 14.
Inventors
- 👤 Witt Johannes
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |