US4353391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactive materials shipping cask anticontamination enclosure
Assignee: United States Department of Energy
•
Filing: 1981-08-18
•
Granted: 1982-10-12
•
Expires: 2001-08-18
Abstract
Abstract An anticontamination device for use in storing shipping casks for radioactive materials comprising (1) a seal plate assembly; (2) a double-layer plastic bag; and (3) a water management system or means for water management.
Inventors
- 👤 Mark S. Belmonte
- 👤 James H. Davis
- 👤 David A. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:33
CPC Classifications
G; G21; G21F; G21F5/00; G21F5/005; Y; Y10; Y10T; Y10T137/00; Y10T137/5762; Y10T137/8593; Y10T137/85978; Y10T137/86035; Y10T137/86292; Y10T137/86324
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
171 words
An anticontamination device comprising: (a) a seal plate assembly, (b) a double layered plastic bag supported by, and connected to, said seal plate assembly, and (c) a means for water management connected to said bag and assembly; said seal plate assembly comprising an upper plate provided with a means for venting water and at least one means for attaching said upper plate to a lifting means capable of removing said upper plate from said bag; said double layered plastic bag comprising an inner plastic bag and an outer plastic bag including a reinforced plastic material, said inner bag being provided with a means for connecting said bag to said water management means; said means for water management including connecting means to connect a supply of clean water to said double layered bag, means for measuring the flow of clean water from said clean water supply to said bag, means for controlling the rate of flow of clean water to said bag, and means to supply said clean water to said bag.
Claim 2
Dependent Claim
171 words
An anticontamination device comprising: (a) a seal plate assembly, (b) a double layered plastic bag supported by, and connected to, said seal plate assembly, and (c) a means for water management connected to said bag and assembly; said seal plate assembly comprising an upper plate provided with a means for venting water and at least one means for attaching said upper plate to a lifting means capable of removing said upper plate from said bag; said double layered plastic bag comprising an inner plastic bag and an outer plastic bag including a reinforced plastic material, said inner bag being provided with a means for connecting said bag to said water management means; said means for water management including connecting means to connect a supply of clean water to said double layered bag, means for measuring the flow of clean water from said clean water supply to said bag, means for controlling the rate of flow of clean water to said bag, and means to supply said clean water to said bag.
Claim 3
Dependent Claim
21 words
The device of claim 1 wherein said upper plate of said seal plate assembly is selected to include an annular plate.
Claim 4
Dependent Claim
19 words
The device of claim 1 wherein said outer bag of said double layered plastic bag includes nylon reinforced polyvinylchloride.
Claim 5
Dependent Claim
21 words
The device of claim 1 wherein said means for venting water provided in said upper plate includes a flexible venting tube.
Claim 6
Dependent Claim
22 words
The device of claim 1 wherein said connecting means used to connect said bag and said clean water supply includes flexible tubing.
Claim 7
Dependent Claim
27 words
The device of claim 1 wherein said means for measuring the flow of clean water from said clean water supply to said bag includes a flow meter.
Claim 8
Dependent Claim
23 words
The device of claim 1 wherein said means for controlling the rate of flow of clean water to said bag includes adjustable valves.
Claim 9
Dependent Claim
18 words
The device of claim 1 wherein said means to supply clean water to said bag includes a pump.
Claim 10
Dependent Claim
40 words
The device of claim 1 wherein said means for venting water provided on said upper plate is maintained in a position whereby the water pressure inside the bag is equal to or greater than the water pressure outside the bag.
References Cited (Backward Citations)
US1121388A
Cited
US3101839A
Cited
US3211144A
Cited
US3322141A
Cited
US3180384A
Cited
US3573462A
Cited
US3999653A
Cited
US4109822A
Cited
US4222889A
Cited
US4229316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-11 | 1986-04-12 | 1986-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-11 | 1990-04-12 | 1990-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-11 | 1994-04-12 | 1994-10-12 | $7700.00 | Window Closed / Lapsed |