US2807727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neutronic reactor shield
Assignee: Individual
•
Filing: 1946-01-16
•
Granted: 1957-09-24
•
Expires: 1966-01-16
Abstract
No abstract record available.
Inventors
- 👤 Fermi Enrico
- 👤 Walter H Zinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:57
CPC Classifications
G; G21; G21C; G21C11/00; G21C11/02; G21C11/028; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN COMBINATION WITH A NEUTRONIC REACTOR, A RADIATION SHIELD ADJACENT SAID REACTOR, SAID RADIATION SHIELD COMPRISING A PLURALITY OF LAYERS OF SHIELDING BLOCKS, EACH OF SAID BLOCKS COMPRISING A PLURALITY OF LAYERS OF AN IRONCONTAINING MATERIAL AND A COMPRESSED CELLULOSIC MATERIAL SECURED TOGETHER IN THE FOLLOWING ORDER, FIRST A LAYER OF SAID IRON-CONTAINING MATERIAL APPROXIMATELY ONE AND ONEHALF INCHES IN THICKNESS, THEN A LAYER OF SAID CELLULOSIC MATERIAL APPROXIMATELY TWO AND THREE-QUARTERS INCHES IN THICKNESS, THEN A SECOND LAYER OF SAID IRON-CONTAINING MATERIAL APPROXIMATELY THREE INCHES IN THICKNESS, THEN A SECOND LAYER OF CELLULOSIC MATERIAL APPROXIMATELY TWO AND THREE-QUARTER INCHES IN THICKNESS AND FINALLY A THIRD LAYER OF SAID IRON-CONTAINING MATERIAL APPROXIMATELY ONE AND ONE-HALF INCHES IN THICKNESS.
Claim 2
Dependent Claim
118 words
IN COMBINATION WITH A NEUTRONIC REACTOR, A RADIATION SHIELD ADJACENT SAID REACTOR, SAID RADIATION SHIELD COMPRISING A PLURALITY OF LAYERS OF SHIELDING BLOCKS, EACH OF SAID BLOCKS COMPRISING A PLURALITY OF LAYERS OF AN IRONCONTAINING MATERIAL AND A COMPRESSED CELLULOSIC MATERIAL SECURED TOGETHER IN THE FOLLOWING ORDER, FIRST A LAYER OF SAID IRON-CONTAINING MATERIAL APPROXIMATELY ONE AND ONEHALF INCHES IN THICKNESS, THEN A LAYER OF SAID CELLULOSIC MATERIAL APPROXIMATELY TWO AND THREE-QUARTERS INCHES IN THICKNESS, THEN A SECOND LAYER OF SAID IRON-CONTAINING MATERIAL APPROXIMATELY THREE INCHES IN THICKNESS, THEN A SECOND LAYER OF CELLULOSIC MATERIAL APPROXIMATELY TWO AND THREE-QUARTER INCHES IN THICKNESS AND FINALLY A THIRD LAYER OF SAID IRON-CONTAINING MATERIAL APPROXIMATELY ONE AND ONE-HALF INCHES IN THICKNESS.
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) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |