US2838451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas cooled nuclear reactors
Assignee: Individual
•
Filing: 1955-11-14
•
Granted: 1958-06-10
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Expires: 1975-11-14
Abstract
No abstract record available.
Inventors
- 👤 Long Everett
- 👤 Rodwell William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:34
CPC Classifications
G; G21; G21C; G21C13/00; G21C13/02; G21C13/028; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A GAS SEAL FOR SEALING THE INTERSTICE BETWEEN A MULTISIDED RIGHT PRISMATIC STRUCTURE AND A CYLINDRICAL VESSEL CONTAINING SAID STRUCTURE, SAID STRUCTURE HAVING A PAIR OF PARALLEL SLOTS AROUND ITS PERIPHERY, SAID SEAL COMPRISING A FLANGE AROUND THE INNER WALL OF THE VESSEL MIDWAY BETWEEN THE TWO SLOTS IN SAID STRUCTURE AND FORMING AN APERTURE CONFORMING TO THE CROSS-SECTIONAL SHAPE OF THE STRUCTURE, A SUPPORT MEMBER AROUND THE PERIPHERY OF SAID APERTURE FORMED OF A NUMBER OF INDIVIDUAL CHANNEL SECTION MEMBERS CONFORMING TO THE NUMBER OF SIDES TO SAID STRUCTURE ADJUSTABLY ATTACHED TO SAID FLANGE, A FLEXIBLE WEB ADJUSTABLY ATTACHED AT ONE END TO EACH LEG OF EACH OF SAID CHANNEL-SECTIONED MEMBERS AND EXTENDING RADIALLY INWARD SO THAT ITS OTHER END RESIDES IN ONE OF THE SLOTS
Claim 2
Dependent Claim
127 words
A GAS SEAL FOR SEALING THE INTERSTICE BETWEEN A MULTISIDED RIGHT PRISMATIC STRUCTURE AND A CYLINDRICAL VESSEL CONTAINING SAID STRUCTURE, SAID STRUCTURE HAVING A PAIR OF PARALLEL SLOTS AROUND ITS PERIPHERY, SAID SEAL COMPRISING A FLANGE AROUND THE INNER WALL OF THE VESSEL MIDWAY BETWEEN THE TWO SLOTS IN SAID STRUCTURE AND FORMING AN APERTURE CONFORMING TO THE CROSS-SECTIONAL SHAPE OF THE STRUCTURE, A SUPPORT MEMBER AROUND THE PERIPHERY OF SAID APERTURE FORMED OF A NUMBER OF INDIVIDUAL CHANNEL SECTION MEMBERS CONFORMING TO THE NUMBER OF SIDES TO SAID STRUCTURE ADJUSTABLY ATTACHED TO SAID FLANGE, A FLEXIBLE WEB ADJUSTABLY ATTACHED AT ONE END TO EACH LEG OF EACH OF SAID CHANNEL-SECTIONED MEMBERS AND EXTENDING RADIALLY INWARD SO THAT ITS OTHER END RESIDES IN ONE OF THE SLOTS
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) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |