US3086369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater pipe line and method
Assignee: Alcoa Corp
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Filing: 1961-10-02
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Granted: 1963-04-23
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Expires: 1981-10-02
Abstract
No abstract record available.
Inventors
- 👤 Robert H Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:53
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/12; F16L1/20; F16L1/24; C; C23; C23F; C23F13/00; C23F13/02; C23F13/04; C23F13/06; C23F13/08; C23F13/10; C23F2213/00; C23F2213/30; C23F2213/31; C23F2213/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A COMPOSITE PIPE LINE FOR UNDERWATER ANCHORAGE COMPRISING AT LEAST ONE METAL SERVICE PIPE, AT LEAST ONE ADDITIONAL PIPE OF METAL ADAPTED TO SERVE AS AN ANODE TO CATHODICALLY PROTECT SAID SERVICE PIPE METAL IN WATER, AND MEANS FOR ELECTRICALLY CONNECTING SAID PIPES TO ESTABLISH PROTECTIVE CURRENT FLOW THEREBETWEEN IN WATER, SAID PIPES BEING MECHANICALLY AFFIXED IN PARALLEL RELATION TO EACH OTHER, SAID COMPOSITE PIPE LINE EXHIBITING AT LEAST SUBSTANTIAL BUOYANCY IN WATER WHEN EMPTY, AND SAID ADDITIONAL PIPE BEING FURTHER ADAPTED UPON BEING AT LEAST PARTIALLY FILLED WITH BALLAST TO SERVE AS AN ANCHOR FOR SAID COMPOSITE PIPE LINE UNDER WATER.
Claim 2
Dependent Claim
102 words
A COMPOSITE PIPE LINE FOR UNDERWATER ANCHORAGE COMPRISING AT LEAST ONE METAL SERVICE PIPE, AT LEAST ONE ADDITIONAL PIPE OF METAL ADAPTED TO SERVE AS AN ANODE TO CATHODICALLY PROTECT SAID SERVICE PIPE METAL IN WATER, AND MEANS FOR ELECTRICALLY CONNECTING SAID PIPES TO ESTABLISH PROTECTIVE CURRENT FLOW THEREBETWEEN IN WATER, SAID PIPES BEING MECHANICALLY AFFIXED IN PARALLEL RELATION TO EACH OTHER, SAID COMPOSITE PIPE LINE EXHIBITING AT LEAST SUBSTANTIAL BUOYANCY IN WATER WHEN EMPTY, AND SAID ADDITIONAL PIPE BEING FURTHER ADAPTED UPON BEING AT LEAST PARTIALLY FILLED WITH BALLAST TO SERVE AS AN ANCHOR FOR SAID COMPOSITE PIPE LINE UNDER WATER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |