US3769161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactor vessel supporting device
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1971-07-08
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Granted: 1973-10-30
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Expires: 1991-07-08
Abstract
Abstract In a nuclear reactor comprising a main vessel filled with a hot heat-transporting liquid and surmounted by a cold shield slab with interposition of a gas blanket, the reactor vessel is supported by a cylindrical shell having a diameter which is slightly larger than the vessel, the top portion of the shell is secured to the vessel in leak-tight manner and the bottom portion of the shell is secured to a peripheral corbel of the vault which contains the vessel and which is closed by the shield slab.
Inventors
- 👤 D Costes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:52
CPC Classifications
G; G21; G21C; G21C1/00; G21C1/02; G21C1/03; G21C13/00; G21C13/02; G21C13/024; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
93 words
A nuclear reactor comprising a vault, a main vessel in said vault filled with a hot heat-transporting liquid and surmounted by a cold shield slab with interposition of a gas blanket, wherein the reactor vessel is supported by a cylindrical shell having a diameter which is slightly larger than said vessel, the top portion of said shell being secured to the vessel in leaktight manner and the bottom portion of said shell being secured to a peripheral corbel of the vault which contains the vessel and which is closed by the shield slab.
Claim 2
Dependent Claim
93 words
A nuclear reactor comprising a vault, a main vessel in said vault filled with a hot heat-transporting liquid and surmounted by a cold shield slab with interposition of a gas blanket, wherein the reactor vessel is supported by a cylindrical shell having a diameter which is slightly larger than said vessel, the top portion of said shell being secured to the vessel in leaktight manner and the bottom portion of said shell being secured to a peripheral corbel of the vault which contains the vessel and which is closed by the shield slab.
Claim 3
Dependent Claim
31 words
A nuclear reactor according to claim 1, wherein the vault which contains the reactor vessel includes a peripheral chamber having a diameter which is distinctly larger than that of said vessel.
Claim 4
Dependent Claim
29 words
A nuclear reactor according to claim 2, wherein said reactor includes a closed inert-gas circuit between the peripheral chamber, the roof of the vessel and an external purification installation.
Claim 5
Dependent Claim
35 words
A nuclear reactor according to claim 3, wherein the elements employed for circulating and renewing the blanket gas include a skirt secured to the top portion of the shield slab and surrounds the vessel-supporting shell.
Claim 6
Dependent Claim
44 words
A nuclear reactor according to claim 4, wherein the inert gas circulates from the peripheral chamber towards the roof of the vessel and passes upwards through the annular space delimited by the vessel-supporting shell and the skirt which is fixed on the shield slab.
Claim 7
Dependent Claim
33 words
A nuclear reactor according to claim 1 including a space located between the main vessel and the vessel containment vault and defined by the supporting shell and vacuum-producing means connected to said space.
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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |