Patent US4089284A successfully refreshed from Google Patents.
US4089284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slurry vessel with dewatering ports covering more than two percent of hold bottom
Assignee: Kobe Steel Ltd
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Filing: 1975-05-22
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Granted: 1978-05-16
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Expires: 1995-05-22
Abstract
Abstract A slurry vessel for carrying pulverized iron ore and water slurry or the like is provided with a vacuum dewatering system that includes ports covering more than 2 percent of the hold bottom area, so that, as the slurry tends to consolidate, water can be drawn therefrom to retard the progress of consolidation.
Inventors
- 👤 Yoshiyuki Matsuno
- 👤 Tomiyasu Nohara
- 👤 Fumiaki Komatsu
- 👤 Nobuyuji Imanishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:19
CPC Classifications
B; B63; B63B; B63B27/00; B63B27/24; F; F26; F26B; F26B5/00; F26B5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A process for controlling the degree of consolidation of a cargo of slurry being transported in a hold of a water-borne vessel, comprising: sucking liquid from the slurry by means of vacuum through a plurality of openings at the bottom of the hold, the total area of said openings exceeding 2 percent of the bottom area of the hold, so that a layer of said slurry becomes unsaturated by partly replacing water within the slurry layer by air, whereby contact pressure between slurry particles is increased, displacement and rearrangement of the particles become difficult, and thus consolidation of the slurry is prevented.
Claim 2
Dependent Claim
102 words
A process for controlling the degree of consolidation of a cargo of slurry being transported in a hold of a water-borne vessel, comprising: sucking liquid from the slurry by means of vacuum through a plurality of openings at the bottom of the hold, the total area of said openings exceeding 2 percent of the bottom area of the hold, so that a layer of said slurry becomes unsaturated by partly replacing water within the slurry layer by air, whereby contact pressure between slurry particles is increased, displacement and rearrangement of the particles become difficult, and thus consolidation of the slurry is prevented.
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) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |