US4453081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container for the transportation and/or storage of radioactive material
Assignee: Transnuklear GmbH
•
Filing: 1981-03-27
•
Granted: 1984-06-05
•
Expires: 2001-03-27
Abstract
Abstract There are needed containers having an n-shielding for the transportation and storage or radioactive materials, especially irradiated fuel elements, which containers still remain intact even in extreme accidents and guarantees a good dissipation of heat. This is attained with containers which there is additionally arranged an n-shielding layer of a graphite material between the base body and the inner covering.
Inventors
- 👤 Richard Christ
- 👤 Klaus Wegner
- 👤 Hartmut Kroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:45
CPC Classifications
G; G21; G21F; G21F5/00; G21F5/06; G21F5/005
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
82 words
A container suitable for the transportation or storage of radioactive materials, particularly irradiated nuclear fuel elements and highly active waste consisting essentially of a base body having a first shielding means for γ- and n-radiation and an internal covering of corrosion resistant material and having a second n-shielding layer, said second shielding layer being between the internal covering and the base body and being made of a graphite containing material, consisting essentially of a hardened mixture of graphite powder and a binder.
Claim 2
Dependent Claim
82 words
A container suitable for the transportation or storage of radioactive materials, particularly irradiated nuclear fuel elements and highly active waste consisting essentially of a base body having a first shielding means for γ- and n-radiation and an internal covering of corrosion resistant material and having a second n-shielding layer, said second shielding layer being between the internal covering and the base body and being made of a graphite containing material, consisting essentially of a hardened mixture of graphite powder and a binder.
Claim 3
Dependent Claim
13 words
A container according to claim 1 wherein the binder is a cast resin.
Claim 4
Dependent Claim
16 words
A container according to claim 1 wherein the second shielding layer comprises shaped pieces of graphite.
Claim 5
Dependent Claim
18 words
A container according to claim 3 wherein the shaped pieces of graphite are covered by a metal jacket.
Claim 6
Dependent Claim
16 words
A container according to claim 4 wherein the metal jacket also serves as the internal covering.
Claim 7
Dependent Claim
21 words
A container according to claim 5 wherein the shaped graphite pieces are secured to the inner side of the base body.
Claim 8
Dependent Claim
21 words
A container according to claim 4 wherein the shaped graphite pieces are secured to the inner side of the base body.
Claim 9
Dependent Claim
21 words
A container according to claim 3 wherein the shaped graphite pieces are secured to the inner side of the base body.
Claim 10
Dependent Claim
16 words
A container according to claim 8 wherein the graphite has a neutron absorbing material admixed therewith.
Claim 11
Dependent Claim
16 words
A container according to claim 7 wherein the graphite has a neutron absorbing material admixed therewith.
Claim 12
Dependent Claim
16 words
A container according to claim 6 wherein the graphite has a neutron absorbing material admixed therewith.
Claim 13
Dependent Claim
16 words
A container according to claim 4 wherein the graphite has a neutron absorbing material admixed therewith.
Claim 14
Dependent Claim
16 words
A container according to claim 3 wherein the graphite has a neutron absorbing material admixed therewith.
Claim 15
Dependent Claim
16 words
A container according to claim 2 wherein the graphite has a neutron absorbing material admixed therewith.
Claim 16
Dependent Claim
16 words
A container according to claim 1 wherein the graphite has a neutron absorbing material admixed therewith.
Claim 17
Dependent Claim
15 words
A container according to claim 15 wherein the neutron absorbing material is boron carbide powder.
Claim 18
Dependent Claim
15 words
A container according to claim 13 wherein the neutron absorbing material is boron carbide powder.
Claim 19
Dependent Claim
15 words
A container according to claim 12 wherein the neutron absorbing material is boron carbide powder.
Claim 20
Dependent Claim
15 words
A container according to claim 11 wherein the neutron absorbing material is boron carbide powder.
Claim 21
Dependent Claim
15 words
A container according to claim 10 wherein the neutron absorbing material is boron carbide powder.
Claim 22
Dependent Claim
19 words
A container according to claim 20 wherein the internal covering is secured to the base body by tension rods.
Claim 23
Dependent Claim
19 words
A container according to claim 1 wherein the internal covering is secured to the base body by tension rods.
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) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |