Patent US3754141A successfully refreshed from Google Patents.
US3754141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shipping and storage container for high power density radioactive materials
Assignee: United States Atomic Energy Commission
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Filing: 1972-07-12
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Granted: 1973-08-21
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Expires: 1992-07-12
Abstract
Abstract A shipping and storage container for radioactive material, particularly high thermal producing fissile material, which includes a cylindrical inner metal container for retaining the radioactive material, an alpha contamination barrier of polyvinyl chloride surrounding said inner container, a cylindrical outer metal container enclosing said inner container and barrier with inner surfaces spaced from the inner container walls and from said barrier, and finely divided heat absorbing and transferring or conducting magnesium oxide filling the space intermediate said barrier and the inner surfaces of the outer metal container.
Inventors
- 👤 R Leebl
- 👤 R Sandvig
- 👤 E Vejvoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:07
CPC Classifications
G; G21; G21F; G21F5/00; G21F5/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A shipping package as claimed in claim 1 wherein said inner container comprises complementary screw-threaded interfitting side wall portions with a joint therebetween and a polytetrafluoroethylene gasket sealing the joint between said portions.
Claim 2
Dependent Claim
28 words
A shipping package as claimed in claim 1 wherein said inner container has an inner diameter of about 1.5 inches and a wall thickness of about 0.15 inches.
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) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |