US3350277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow-limiting device, especially for nuclear reactors
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1966-03-24
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Granted: 1967-10-31
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Expires: 1986-03-24
Abstract
No abstract record available.
Inventors
- 👤 Costes Didier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:11
CPC Classifications
G; G21; G21C; G21C9/00; G21C15/00; G21C15/02; G21C19/00; G21C19/02; G21C19/04; G21C5/00; G21C5/02; G21C5/06; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
IN A DEVICE OF LIMITING TO A PREDETERMINED VALUE THE RATE OF ADMISSION OF A FLUID INTO A CHANNEL SECTION; A CHANNEL EXTENSION LOCATED UPSTREAM OF SAID CHANNEL SECTION AND CLOSED AT ITS END REMOTE FROM SAID CHANNEL SECTION; ADMISSION OPENINGS FORMED IN THE LATERAL WALL OF SAID CHANNEL EXTENSION FOR ADMITTING SAID FLUID INTO SAID CHANNEL; A VENTURI WITHIN SAID CHANNEL EXTENSION IN ABUTTING CONNECTION WITH AN ANNULAR SHOULDER OF THE CHANNEL EXTENSION WHEREBY DISPLACEMENT OF SAID VENTURI IN THE DIRECTION OF THE CLOSED END OF SAID EXTENSION IS PREVENTED, SAID VENTURI CONNECTING SAID OPENINGS TO SAID CHANNEL SECTION AND HAVING A CROSS-SECTIONAL AREA AT THE THROAT SUCH THAT THE FLOW OF FLUID THROUGH SAID THROAT ATTAINS THE VELOCITY OF SOUND AT SAID PREDETERMINED ADMISSION RATE; AND A DUCT CONNECTING THE VENTURI THROAT, IN WHICH THE PRESSURE IS BELOW THAT WHICH PREVAILS WITHIN SAID CHANNEL, WITH A SPACE FORMED BETWEEN SAID CLOSED END AND A WALL WHICH IS FAST WITH SAID VENTURI.
Claim 2
Dependent Claim
163 words
IN A DEVICE OF LIMITING TO A PREDETERMINED VALUE THE RATE OF ADMISSION OF A FLUID INTO A CHANNEL SECTION; A CHANNEL EXTENSION LOCATED UPSTREAM OF SAID CHANNEL SECTION AND CLOSED AT ITS END REMOTE FROM SAID CHANNEL SECTION; ADMISSION OPENINGS FORMED IN THE LATERAL WALL OF SAID CHANNEL EXTENSION FOR ADMITTING SAID FLUID INTO SAID CHANNEL; A VENTURI WITHIN SAID CHANNEL EXTENSION IN ABUTTING CONNECTION WITH AN ANNULAR SHOULDER OF THE CHANNEL EXTENSION WHEREBY DISPLACEMENT OF SAID VENTURI IN THE DIRECTION OF THE CLOSED END OF SAID EXTENSION IS PREVENTED, SAID VENTURI CONNECTING SAID OPENINGS TO SAID CHANNEL SECTION AND HAVING A CROSS-SECTIONAL AREA AT THE THROAT SUCH THAT THE FLOW OF FLUID THROUGH SAID THROAT ATTAINS THE VELOCITY OF SOUND AT SAID PREDETERMINED ADMISSION RATE; AND A DUCT CONNECTING THE VENTURI THROAT, IN WHICH THE PRESSURE IS BELOW THAT WHICH PREVAILS WITHIN SAID CHANNEL, WITH A SPACE FORMED BETWEEN SAID CLOSED END AND A WALL WHICH IS FAST WITH SAID VENTURI.
References Cited (Backward Citations)
US3235465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |