US3149742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum device
Assignee: National Research Corp
•
Filing: 1963-03-27
•
Granted: 1964-09-22
•
Expires: 1983-03-27
Abstract
No abstract record available.
Inventors
- 👤 Hay Robert Duncan
- 👤 Jr Milo P Hnilicka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:31
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/001; F17C2203/00; F17C2203/03; F17C2203/0391; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2221/00; F17C2221/01; F17C2221/012; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/32; Y10; Y10S; Y10S220/00; Y10S220/901; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A DOUBLE-WALLED INSULATED CONTAINER COMPRISING AN OUTER RADIAL SERIES OF FLEXIBLE RADIATION BARRIERS IN THE SPACE BETWEEN THE WALLS AND AN INNER RADIAL SERIES OF FLEXIBLE RADIATION BARRIERS IN THE SPACE BETWEEN THE WALLS, A SUPPORT ASSEMBLY BETWEEN THE INNER AND OUTER SERIES COMPRISING A DISTRIBUTED SET OF RIGID STRINGERS OF THIN SECTION, ONE END OF EACH STRINGER BEARING AGAINST THE OUTER WALL VIA THE OUTER SERIES OF BARRIERS SO THAT THE BARRIERS ARE COMPRESSED AT THE POINT OF BEARING CONTACT, THE OTHER END OF EACH STINGER BEARING AGAINST THE INNER WALL VIA THE INNER SERIES OF BARRIERS SO THAT THE BARRIERS ARE COMPRESSED AT THE POINT OF BEARING CONTACT, EACH STRINGER BEING ARRANGED SO THAT THE INNER AND OUTER POINTS OF BEARING CONTACT ARE OUT OF PERIPHERAL ALIGNMENT WITH EACH OTHER AND SAID POINTS OF BEARING CONTACT COMPRISING ESSENTIALLY THE ONLY POINTS ALONG THE CONTAINER WALLS WHERE RADIATION BARRIERS ARE COMPRESSED SO THAT EACH RADIAL RADIATION PATH PASSING THROUGH THE DOUBLE WALL OF THE CONTAINER IS INTERCEPTED BY AT LEAST ONE SERIES OF PROPERLY SPACED RADIATION BARRIERS.
Claim 2
Dependent Claim
178 words
A DOUBLE-WALLED INSULATED CONTAINER COMPRISING AN OUTER RADIAL SERIES OF FLEXIBLE RADIATION BARRIERS IN THE SPACE BETWEEN THE WALLS AND AN INNER RADIAL SERIES OF FLEXIBLE RADIATION BARRIERS IN THE SPACE BETWEEN THE WALLS, A SUPPORT ASSEMBLY BETWEEN THE INNER AND OUTER SERIES COMPRISING A DISTRIBUTED SET OF RIGID STRINGERS OF THIN SECTION, ONE END OF EACH STRINGER BEARING AGAINST THE OUTER WALL VIA THE OUTER SERIES OF BARRIERS SO THAT THE BARRIERS ARE COMPRESSED AT THE POINT OF BEARING CONTACT, THE OTHER END OF EACH STINGER BEARING AGAINST THE INNER WALL VIA THE INNER SERIES OF BARRIERS SO THAT THE BARRIERS ARE COMPRESSED AT THE POINT OF BEARING CONTACT, EACH STRINGER BEING ARRANGED SO THAT THE INNER AND OUTER POINTS OF BEARING CONTACT ARE OUT OF PERIPHERAL ALIGNMENT WITH EACH OTHER AND SAID POINTS OF BEARING CONTACT COMPRISING ESSENTIALLY THE ONLY POINTS ALONG THE CONTAINER WALLS WHERE RADIATION BARRIERS ARE COMPRESSED SO THAT EACH RADIAL RADIATION PATH PASSING THROUGH THE DOUBLE WALL OF THE CONTAINER IS INTERCEPTED BY AT LEAST ONE SERIES OF PROPERLY SPACED RADIATION BARRIERS.
References Cited (Backward Citations)
US1948477A
Cited
US2516405A
Cited
US2799425A
Cited
US2919046A
Cited
US3018016A
Cited
US3032231A
Cited
US3009600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |