Patent US3280000A successfully refreshed from Google Patents.
US3280000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moderator dump gates
Assignee: Atomic Energy of Canada Ltd AECL
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Filing: 1965-01-27
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Granted: 1966-10-18
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Expires: 1985-01-27
Abstract
No abstract record available.
Inventors
- 👤 Robert W Blackburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:30
CPC Classifications
G; G21; G21C; G21C7/00; G21C7/28; G21C9/00; G21C9/02; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN A NUCLEAR REACTOR COMPRISING A CALANDRIA AND A DAMP TANK BENEATH THE CALANDRIA, AND ADAPTED TO RECEIVE A WORKING VOLUME OF MODEATOR LIQUID WITHIN THE CALANDRIA, WITH A SUBSTAINING GAS PRESSURE WITHIN THE DUMP TANK, AND INCLUDING INTERFACE MEANS FOR SEPARATING SAID LIQUID AND SAID GAS, SAID INTERFACE MEANS COMPRISING, A DUMP GATE AT THE BASE OF SAID CALANDRIA, SAID GAS FORMING A SUPPORTING SURFACE FOR SAID LIQUID AND DEFINING A SEAL WITH THE BASE OF SAID CALANDRIA, SAID SEAL COMPRISING A MANOMETER TUBE SECTION SEPARATING LIQUID IN SAID CALANDRIA AND GAS IN SAID DUMP TANK, PRESSURE RELEASE IN SAID TANK UPSETTING EQUILIBRIUM BALANCE BETWEEN PRESSURE OF SAID SUBSTAINING GAS AND PRESSURE OF SAID LUQUID ON SAID GATE OPENING SAID GATE, SAID DISCHARGING LIQUID FROM SAID CALANDRIA INTO SAID TANK.
Claim 2
Dependent Claim
131 words
IN A NUCLEAR REACTOR COMPRISING A CALANDRIA AND A DAMP TANK BENEATH THE CALANDRIA, AND ADAPTED TO RECEIVE A WORKING VOLUME OF MODEATOR LIQUID WITHIN THE CALANDRIA, WITH A SUBSTAINING GAS PRESSURE WITHIN THE DUMP TANK, AND INCLUDING INTERFACE MEANS FOR SEPARATING SAID LIQUID AND SAID GAS, SAID INTERFACE MEANS COMPRISING, A DUMP GATE AT THE BASE OF SAID CALANDRIA, SAID GAS FORMING A SUPPORTING SURFACE FOR SAID LIQUID AND DEFINING A SEAL WITH THE BASE OF SAID CALANDRIA, SAID SEAL COMPRISING A MANOMETER TUBE SECTION SEPARATING LIQUID IN SAID CALANDRIA AND GAS IN SAID DUMP TANK, PRESSURE RELEASE IN SAID TANK UPSETTING EQUILIBRIUM BALANCE BETWEEN PRESSURE OF SAID SUBSTAINING GAS AND PRESSURE OF SAID LUQUID ON SAID GATE OPENING SAID GATE, SAID DISCHARGING LIQUID FROM SAID CALANDRIA INTO SAID TANK.
References Cited (Backward Citations)
US3001923A
Cited
US3193123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |