US4495139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactive-waste container with leak monitor
Assignee: GNS GESELLSCHAFT fur NUKLEAR-SERVICE MBH ROSASTR 15 4300 ESSEN 1 WEST GERMANY A CORP OF
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Filing: 1982-07-09
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Granted: 1985-01-22
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Expires: 2002-07-09
Abstract
Abstract A container has a massive metallic vessel whose interior is adapted to receive radioactive waste and whose mouth is formed with inner and outer spaced generally planar and annular vessel shoulders and formed therebetween with a nonplanar intermediate annular vessel surface. A massive metallic cover formed with a plug fits in the mouth and has respective inner and outer plug shoulders closely juxtaposed with the vessel shoulders and a nonplanar intermediate annular plug surface complementary to the intermediate vessel surface. An inner ring seal engages snugly between the inner shoulders. A pair of generally concentric and spaced outer ring seals engage snugly between the outer shoulders and forming an annular outer chamber therebetween. An intermediate ring seal engages snugly between the intermediate surfaces and forms therebetween and with the inner ring seal an annular inner chamber and therebetween and with the outer ring seals an intermediate chamber. The cover is formed with respective inner, intermediate, and outer passages each having one end opening into the respective chamber and another end. Valves are provided on the cover at the other ends of the passages for sampling gases therein and in the respective chambers.
Inventors
- 👤 Klaus G. Janberg
- 👤 Dieter Methling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:13
CPC Classifications
G; G21; G21F; G21F5/00; G21F5/06; G21F5/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
196 words
A container for radioactive waste, said container comprising: a massive metallic vessel having an interior adapted to receive radioactive waste and having a mouth formed with inner and outer spaced generally planar and annular vessel shoulders and formed therebetween with a nonplanar intermediate annular vessel surface; a massive metallic cover formed with a plug fitted in said mouth and having respective inner and outer plug shoulders closely juxtaposed with said vessel shoulders and a nonplanar intermediate annular plug surface complementary to said intermediate vessel surface; an inner ring seal engaged snugly between said inner shoulders; a pair of generally concentric and spaced outer ring seals engaged snugly between said outer shoulders and forming an annular outer chamber therebetween; an intermediate ring seal engaged snugly between said intermediate surfaces and forming therebetween and with said inner ring seal an annular inner chamber and therebetween and with said outer ring seals an intermediate chamber, said cover being formed with respective inner, intermediate, and outer passages each having one end opening into the repective chamber and another end; and means on said cover at the other ends of said passages for sampling gases therein and in the respective chambers.
Claim 2
Dependent Claim
196 words
A container for radioactive waste, said container comprising: a massive metallic vessel having an interior adapted to receive radioactive waste and having a mouth formed with inner and outer spaced generally planar and annular vessel shoulders and formed therebetween with a nonplanar intermediate annular vessel surface; a massive metallic cover formed with a plug fitted in said mouth and having respective inner and outer plug shoulders closely juxtaposed with said vessel shoulders and a nonplanar intermediate annular plug surface complementary to said intermediate vessel surface; an inner ring seal engaged snugly between said inner shoulders; a pair of generally concentric and spaced outer ring seals engaged snugly between said outer shoulders and forming an annular outer chamber therebetween; an intermediate ring seal engaged snugly between said intermediate surfaces and forming therebetween and with said inner ring seal an annular inner chamber and therebetween and with said outer ring seals an intermediate chamber, said cover being formed with respective inner, intermediate, and outer passages each having one end opening into the repective chamber and another end; and means on said cover at the other ends of said passages for sampling gases therein and in the respective chambers.
Claim 3
Dependent Claim
32 words
The radioactive-waste container defined in claim 1 wherein said cover has an outwardly directed surface formed with a recess into which said other ends open and in which said means are provided.
Claim 4
Dependent Claim
21 words
The radioactive-waste container defined in claim 1, further comprising a second cover overlying the first-mentioned cover and fixed to said vessel.
Claim 5
Dependent Claim
20 words
The radioactive-waste container defined in claim 1, further comprising means for securing said cover to said vessel at said mouth.
Claim 6
Dependent Claim
14 words
The radioactive-waste container defined in claim 1 wherein said shoulders are planar and parallel.
Claim 7
Dependent Claim
15 words
The radioactive-waste container defined in claim 1 wherein said intermediate surfaces are surfaces of revolution.
Claim 8
Dependent Claim
14 words
The radioactive-waste container defined in claim 6 wherein said intermediate surfaces are substantially cylindrical.
Claim 9
Dependent Claim
20 words
The radioactive-waste container defined in clain 1, further comprising a body of tracer gas at above-ambient pressure in said vessel.
Claim 10
Dependent Claim
20 words
The radioactive-waste container defined in clain 1, further comprising a body of tracer gas at above-ambient pressure in said vessel.
Claim 11
Dependent Claim
16 words
The radioactive-waste container defined in claim 1, further comprising bolts securing said cover to said vessel.
Claim 12
Dependent Claim
12 words
The radioactive-waste container defined in claim 1 wherein said means are valves.
References Cited (Backward Citations)
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Cited
US3819479A
Cited
US3819478A
Cited
US3929253A
Cited
US4076585A
Cited
US4236971A
Cited
US4353391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-01-22 | 1988-07-23 | 1989-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-22 | 1992-07-23 | 1993-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-22 | 1996-07-23 | 1997-01-22 | $7700.00 | Window Closed / Lapsed |