Patent US3953288A successfully refreshed from Google Patents.
US3953288A
Expired / Lapsed
US
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Gas venting
Assignee: Energy Research and Development Administration ERDA
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Filing: 1970-03-24
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Granted: 1976-04-27
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Expires: 1990-03-24
Abstract
Abstract Improved gas venting from radioactive-material containers which utilizes the passageways between interbonded impervious laminae.
Inventors
- 👤 Edwin F. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:20
CPC Classifications
G; G21; G21G; G21G4/00; G21G4/04; G21G4/06; G21H; G21H1/00; G21H1/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
84 words
Means for use in venting gas from a container having radioactive-material therein comprising a plurality of nonporous lamina of gas impervious material with juxtaposed and coentensive surfaces in intimate and unsintered direct diffusion interbonded contact with each other up to substantially 50% of said surfaces having intermediate the lamina a zone with a network of randomly oriented minute gas passages therethrough, said diffusion bonded lamina disposed in edgewise disposition intermediate the interior and exterior of said container for release of gas from the interior.
Claim 2
Dependent Claim
84 words
Means for use in venting gas from a container having radioactive-material therein comprising a plurality of nonporous lamina of gas impervious material with juxtaposed and coentensive surfaces in intimate and unsintered direct diffusion interbonded contact with each other up to substantially 50% of said surfaces having intermediate the lamina a zone with a network of randomly oriented minute gas passages therethrough, said diffusion bonded lamina disposed in edgewise disposition intermediate the interior and exterior of said container for release of gas from the interior.
Claim 3
Dependent Claim
21 words
The gas vent of claim 1 wherein said lamina are formed from a single member coiled about itself with juxtaposed surfaces.
Claim 4
Dependent Claim
16 words
The gas vent of claim 1 including a stack of laminae having adjoining diffusion bonded surfaces.
Claim 5
Dependent Claim
18 words
The gas vent of claim 1 wherein said bonding covers from about 4 to 10% of said surfaces.
References Cited (Backward Citations)
US2830190A
Cited
US3133196A
Cited
US3324540A
Cited
US3406094A
Cited
US3357893A
Cited
US3633033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-27 | 1979-10-27 | 1980-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-27 | 1983-10-27 | 1984-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-27 | 1987-10-27 | 1988-04-27 | $7700.00 | Window Closed / Lapsed |