Patent US3588174A successfully refreshed from Google Patents.
US3588174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collector assembly for deep sea mining
Assignee: Tetra Tech Inc
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Filing: 1969-08-01
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Granted: 1971-06-28
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Expires: 1989-08-01
Abstract
Abstract A COLLECTOR ASSEMBLY IS PROVIDED WHICH MAY BE TOWED ON THE OCEAN FLOOR FOR MINING LOOSE AGGREGATE, THE AGGREGATES BEING LIFTED TO THE SURFACE BY MEANS OF A WATER STREAM WHICH FLOWS UPWARDLY FROM THE COLLECTOR. THE COLLECTOR TO BE DESCRIBED IS FOLDABLE, AND IT IS FULLY DEPLOYED ONLY WHEN IMMERSED AND READY FOR OPERATION. HYDRAULIC MEANS IS PROVIDED FOR GATHERING AND CONVEYING THE NODULES TOWARD THE INTAKE TO THE AFORESAID WATER STREAM. GROUND TRACTION OF THE COLLECTOR IS PROVIDED BY MEANS, FOR EXAMPLE, OF A COMBINED TOW FROM A RISER AND FROM A FOLLOWER PENDANT WHICH IS RIGGED ON THE COLLECTOR THROUGH SIDELINES SIMILAR TO THOSE USED IN THE FISHING GEAR ART.
Inventors
- 👤 Andre M Rossfelder
- 👤 Bertram J Thorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:46
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/8858; E02F3/90; E02F3/92; E21; E21C; E21C50/00
Claims Analysis
Total Claims: 0
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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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |