Patent US3154406A successfully refreshed from Google Patents.
US3154406A
Expired / Lapsed
US
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Exhaust for steel converter
Assignee: Institut de Recherches de la Siderurgie Francaise IRSID
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Filing: 1961-10-25
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Granted: 1964-10-27
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Expires: 1981-10-25
Abstract
No abstract record available.
Inventors
- 👤 Allard Marc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:58
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/38; C21C5/40; Y; Y02; Y02P; Y02P10/00; Y02P10/25; Y10; Y10S; Y10S261/00; Y10S261/09; Y10S261/54; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
144 words
IN A PROCESS FOR REMOVING A GAS FROM AN OPEN CONTAINER SUBSTANTIALLY WITHOUT DILUTION BY AMBIENT AIR, THE STEPS OF: (A) DISCHARGING A STREAM OF GAS FROM SAID CONTAINER IN A PREDETERMINED DIRECTION; (B) RECEIVING THE DISCHARGED STREAM IN AN ORIFICE COMMUNICATING WITH A CONDUIT, THE ORIFICE BEING SPACED FROM SAID CONTAINER IN SAID DIRECTION, AND THE GAS STREAM COMMUNICATING WITH THE AMBIENT ATMOSPHERE WHILE IN THE SPACE BETWEEN SAID CONTAINER AND SAID ORIFICE; (C) SENSING THE PRESSURE OF SAID ATMOSPHERE; (D) SENSING THE PRESSURE OF SAID GAS IN A PORTION OF SAID CONDUIT; AND (E) ACTUATING MOVEMENT OF SAID GAS IN SAID CONDUIT IN A DIRECTION AWAY FROM SAID ORIFICE RESPONSIVE TO THE DIFFERENCE BETWEEN THE SENSED PRESSURES OF SAID ATMOSPHERE AND OF SAID GAS TO MAKE THE PRESSURE OF SAID GAS IN SAID ORIFICE SUBSTANTIALLY EQUAL TO THE PRESSURE OF SAID ATMOSPHERE.
References Cited (Backward Citations)
US889694A
Cited
GB211042A
Cited
FR700651A
Cited
US2604185A
Cited
US2646263A
Cited
US2702699A
Cited
GB768233A
Cited
DE972340C
Cited
FR1116195A
Cited
US2847206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |