US2731168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for gathering and loading oil from underwater oil wells
Assignee: ExxonMobil Oil Corp
•
Filing: 1952-11-17
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Granted: 1956-01-17
•
Expires: 1972-11-17
Abstract
No abstract record available.
Inventors
- 👤 Richard G Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:00
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/34; E21B43/36; E21B43/01; Y; Y10; Y10T; Y10T137/00; Y10T137/402
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN AN UNDERWATER OIL STORAGE TANK HAVING A FLEXIBLE IMPERVIOUS MEMBRANE DIVIDING SAID TANK INTO AN UPPER OIL-CONTAINING SECTION AND A LOWER WATER-CONTAINING SECTION, MEANS POSITIONED ABOVE SAID MEMBRANE WITHIN SAID OIL-CONTAINING SECTION FOR SECURING SAID MEMBRANE IN LIQUID TIGHT CONTACT WITH THE INSIDE SURFACE OF SAID TANK, SAID MEANS COMPRISING IN COMBINATION A PLURALITY OF BOLTS SECURED TO THE INSIDE SURFACE OF SAID TANK AND PROJECTING INWARDLY THEREFROM, SAID BOLTS PASSING THROUGH SAID MEMBRANE NEAR ITS PERIPHERY TO MAINTAIN SAID MEMBRANE IN POSITION SAIDTANK, A BAR FITTED ON SAID BOLTS ADJACENT TO SAID MEMBRANE HOLDING SAID MEMBRANE IN LIQUID TIGHT CONTACT WITH THE INSIDE SURFACE OF SAID TANK, AND MEANS SECURED ON SAID BOLTS MAINTAIN SAID BAR IN POSITION AND TO PREVENT SAID MEMBRANE FROM CONTACTING THE INWARD ENDS OF SAID BOLTS.
Claim 2
Dependent Claim
133 words
IN AN UNDERWATER OIL STORAGE TANK HAVING A FLEXIBLE IMPERVIOUS MEMBRANE DIVIDING SAID TANK INTO AN UPPER OIL-CONTAINING SECTION AND A LOWER WATER-CONTAINING SECTION, MEANS POSITIONED ABOVE SAID MEMBRANE WITHIN SAID OIL-CONTAINING SECTION FOR SECURING SAID MEMBRANE IN LIQUID TIGHT CONTACT WITH THE INSIDE SURFACE OF SAID TANK, SAID MEANS COMPRISING IN COMBINATION A PLURALITY OF BOLTS SECURED TO THE INSIDE SURFACE OF SAID TANK AND PROJECTING INWARDLY THEREFROM, SAID BOLTS PASSING THROUGH SAID MEMBRANE NEAR ITS PERIPHERY TO MAINTAIN SAID MEMBRANE IN POSITION SAIDTANK, A BAR FITTED ON SAID BOLTS ADJACENT TO SAID MEMBRANE HOLDING SAID MEMBRANE IN LIQUID TIGHT CONTACT WITH THE INSIDE SURFACE OF SAID TANK, AND MEANS SECURED ON SAID BOLTS MAINTAIN SAID BAR IN POSITION AND TO PREVENT SAID MEMBRANE FROM CONTACTING THE INWARD ENDS OF SAID BOLTS.
References Cited (Backward Citations)
US375929A
Cited
US1982345A
Cited
US2033427A
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US2371632A
Cited
US2573299A
Cited
US2594105A
Cited
US2624490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |