US3344612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shallow water caisson
Assignee: Global Marine Inc
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Filing: 1966-02-17
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Granted: 1967-10-03
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Expires: 1986-02-17
Abstract
No abstract record available.
Inventors
- 👤 Paul R Rininger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:59
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A SHALLOW WATER CAISSON CAPABLE OF PROVIDING SPACE BELOW THE FLOOR OF A BODY OF WATER WHEN SUCH FLOOR IS COMPOSED OF FLUID DISPLACEABLE MATERIAL, SUCH SPACE BEING SUITABLE FOR WELL FABRICATING AND PRODUCING EQUIPMENT, SAID SHALLOW WATER CAISSON COMPRISING: (A) A SHELL HAVING AN INTERIOR DEFINING THE SPACE; (B) A HOLLOW TAPERED BASE FLUID TIGHTLY JOINED AT ITS LARGEST END TO THE BOTTOM OF SAID SHELL WITH ITS TAPER EXTENDING DOWNWARDLY AND INWARDLY FROM SAID SHELL AND HAVING AN OPENING AT ITS APEX OF SUFFICIENT DIAMETER TO PASS WELL DRILLING EQUIPMENT; (C) MEANS FOR DISCHARGING FLUID UNDER PRESSURE TO THE EXTERIOR OF SAID CAISSON AROUND ITS OUTER PERIPHERY PROXIMATE TO THE JUCTION OF SAID SHELL AND SAID BASE WITH BOTH A VERTICAL AND HORIZONTAL COMPONENT OF VELOCITY; AND
Claim 2
Dependent Claim
129 words
A SHALLOW WATER CAISSON CAPABLE OF PROVIDING SPACE BELOW THE FLOOR OF A BODY OF WATER WHEN SUCH FLOOR IS COMPOSED OF FLUID DISPLACEABLE MATERIAL, SUCH SPACE BEING SUITABLE FOR WELL FABRICATING AND PRODUCING EQUIPMENT, SAID SHALLOW WATER CAISSON COMPRISING: (A) A SHELL HAVING AN INTERIOR DEFINING THE SPACE; (B) A HOLLOW TAPERED BASE FLUID TIGHTLY JOINED AT ITS LARGEST END TO THE BOTTOM OF SAID SHELL WITH ITS TAPER EXTENDING DOWNWARDLY AND INWARDLY FROM SAID SHELL AND HAVING AN OPENING AT ITS APEX OF SUFFICIENT DIAMETER TO PASS WELL DRILLING EQUIPMENT; (C) MEANS FOR DISCHARGING FLUID UNDER PRESSURE TO THE EXTERIOR OF SAID CAISSON AROUND ITS OUTER PERIPHERY PROXIMATE TO THE JUCTION OF SAID SHELL AND SAID BASE WITH BOTH A VERTICAL AND HORIZONTAL COMPONENT OF VELOCITY; AND
References Cited (Backward Citations)
US3202218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |