Patent US4151689A successfully refreshed from Google Patents.
US4151689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear engineering installation
Assignee: Kraftwerk Union AG
•
Filing: 1977-07-29
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Granted: 1979-05-01
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Expires: 1997-07-29
Abstract
Abstract Nuclear engineering installation having a concrete tank enclosing activity-carrying components of the installation, the concrete tank being covered by a hill formed of earth, includes means for connecting to the interior of the concrete tank a region of relatively lower density in the hill, the region being spaced from the surface of the hill, the connecting means being pressure-dependently openable.
Inventors
- 👤 Hans-Peter Schabert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:26
CPC Classifications
G; G21; G21C; G21C13/00; G21C9/00; G21C9/004; G21D; G21D1/00; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
60 words
Nuclear engineering installation having a concrete tank enclosing activity-carrying components of the installation, the concrete tank being covered by a hill formed of earth, comprising means for connecting to the interior of the concrete tank a region of relatively lower density in the hill, said region being spaced from the surface of the hill, said connecting means being pressure-dependently openable.
Claim 2
Dependent Claim
60 words
Nuclear engineering installation having a concrete tank enclosing activity-carrying components of the installation, the concrete tank being covered by a hill formed of earth, comprising means for connecting to the interior of the concrete tank a region of relatively lower density in the hill, said region being spaced from the surface of the hill, said connecting means being pressure-dependently openable.
Claim 3
Dependent Claim
29 words
Nuclear engineering installation according to claim 1, wherein said region of relatively low density is disposed in a lowermost part of the hill formed of earth piled up thereon.
Claim 4
Dependent Claim
25 words
Nuclear engineering installation according to claim 1 wherein the concrete tank is covered at the upper side thereof with a dense layer of clay material.
Claim 5
Dependent Claim
31 words
Nuclear engineering installation according to claim 1 wherein the concrete tank is surrounded by a layer of material, said region of relatively low density being located outside said layer of material.
Claim 6
Dependent Claim
25 words
Nuclear engineering installation according to claim 1 including a water-impermeable layer separating said region of relatively low density from the groundwater table of the earth.
Claim 7
Dependent Claim
24 words
Nuclear engineering installation according to claim 5 including a pipe connected to said region of relatively low density and disposed above the groundwater table.
Claim 8
Dependent Claim
36 words
Nuclear engineering installation according to claim 1 including a protective layer of material disposed on the surface of the hill of earth above said region of relatively low density for protecting against uncontrolled infiltration of rainwater.
Claim 9
Dependent Claim
16 words
Nuclear engineering installation according to claim 7 wherein said protective layer is formed of clay material.
Claim 10
Dependent Claim
37 words
Nuclear engineering installation according to claim 7 including a discharge line extending from the inside of the hill through said protective layer and having a cross section substantially equal to that of said pressure-dependently openable connecting means.
Claim 11
Dependent Claim
43 words
Nuclear engineering installation according to claim 1 including a containment for enclosing components of a primary circulatory loop, said containment being disposed in the concrete tank, and a safety valve connecting the interior of said containment with the interior of said concrete tank.
Claim 12
Dependent Claim
28 words
Nuclear engineering installation according to claim 10 wherein said safety valve is responsive to a pressure greater than that to which said pressure-dependently openable connecting means is responsive.
Claim 13
Dependent Claim
51 words
Nuclear engineering installation according to claim 1 including, in the hill, a plurality of regions of relatively lower density connected to the concrete tank, and further including impermeable layers of earth separating said regions from one another, from the concrete tank and from other regions in the hill essential to safety.
Claim 14
Dependent Claim
37 words
Nuclear engineering installation according to claim 1 including, in the hill, a plurality of regions of relatively low density separated from one another and a plurality of concrete tanks associated with said regions of relatively low density.
References Cited (Backward Citations)
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Cited
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US3021273A
Cited
US3232843A
Cited
US3258403A
Cited
US3375162A
Cited
US3712851A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-30 | 1982-10-30 | 1983-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-30 | 1986-10-30 | 1987-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-30 | 1990-10-30 | 1991-05-01 | $7700.00 | Window Closed / Lapsed |