US3613623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slurry tanker
Assignee: Mitsui Engineering and Shipbuilding Co Ltd
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Filing: 1969-07-28
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Granted: 1971-10-19
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Expires: 1989-07-28
Abstract
Abstract A cargo vessel for handling materials received in the form of a slurry. The cargo tank of the vessel is provided with a dewatering device comprising a series of upstanding conduits having filtering means along the entire height of the wall of the tank to discharge the water from the slurry into the ballast tanks of the vessel, from which it may be discharged by the conventional ballast pumps, if desired.
Inventors
- 👤 Hideo Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:56
CPC Classifications
E; E02; E02F; E02F7/00; E02F7/06; E02F7/065; E02F7/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86348
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A slurry tanker having a cargo tank and a ballast tank comprising draining means consisting of a plurality of upstanding conduits coextensive in height with said tank and Disposed at spaced intervals along an inner wall of the cargo tank, said conduits having at least one filter member extending along the length thereof to drain the liquid from the slurry in the tank, and discharging means for liquid connecting said conduits and said ballast tank and having means for regulating the quantity of discharge, said ballast tank having pump means for discharging liquid therefrom.
Claim 2
Dependent Claim
94 words
A slurry tanker having a cargo tank and a ballast tank comprising draining means consisting of a plurality of upstanding conduits coextensive in height with said tank and Disposed at spaced intervals along an inner wall of the cargo tank, said conduits having at least one filter member extending along the length thereof to drain the liquid from the slurry in the tank, and discharging means for liquid connecting said conduits and said ballast tank and having means for regulating the quantity of discharge, said ballast tank having pump means for discharging liquid therefrom.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |