US3091205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of raising sunken vessels
Assignee: Individual
•
Filing: 1957-08-16
•
Granted: 1963-05-28
•
Expires: 1977-08-16
Abstract
No abstract record available.
Inventors
- 👤 Watson William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:38
CPC Classifications
B; B63; B63C; B63C7/00; B63C7/06; B63C7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
THE METHOD OF IMPARTING BUOYANCY TO A SUNKEN SHIP COMPRISING THE STEPS OF PUMPING A FLUID RESIN INTO A WATER-FILLED COMPARTMENT OF THE SHIP FROM A SALVAGE VESSEL, THROUGH A FIRST HOSE, THE HYDROSTATIC PRESSURE IN THE COMPARTMENT BEING SUBSTANTIALLY ABOVE ATMOSPHERIC PRESSURE, PUMPING A FLUID CATALYST CAPABLE OF ACTING ON THE RESIN TO FORM A CLOSED CELL BUOYANT FOAM INTO THE SHIP FROM THE SALVAGE VESSEL THROUGH A SECOND HOSE, MIXING THE CATALYST WITH THE RESIN, AND INJECTING THE MIXTURE INTO THE WATER IN COMPARTMENT TO GENERATE A BUOYANT FOAM DISPLACING THE WATER FROM THE COMPARTMENT BY EXPANSION.
Claim 2
Independent Claim
99 words
THE METHOD OF IMPARTING BUOYANCY TO A SUNKEN SHIP COMPRISING THE STEPS OF PUMPING A FLUID RESIN INTO A WATER-FILLED COMPARTMENT OF THE SHIP FROM A SALVAGE VESSEL, THROUGH A FIRST HOSE, THE HYDROSTATIC PRESSURE IN THE COMPARTMENT BEING SUBSTANTIALLY ABOVE ATMOSPHERIC PRESSURE, PUMPING A FLUID CATALYST CAPABLE OF ACTING ON THE RESIN TO FORM A CLOSED CELL BUOYANT FOAM INTO THE SHIP FROM THE SALVAGE VESSEL THROUGH A SECOND HOSE, MIXING THE CATALYST WITH THE RESIN, AND INJECTING THE MIXTURE INTO THE WATER IN COMPARTMENT TO GENERATE A BUOYANT FOAM DISPLACING THE WATER FROM THE COMPARTMENT BY EXPANSION.
References Cited (Backward Citations)
US908016A
Cited
US1368787A
Cited
US1772709A
Cited
US2653139A
Cited
US2764565A
Cited
US2758194A
Cited
DE950050C
Cited
US2779689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |