Patent US2994657A successfully refreshed from Google Patents.
US2994657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chimney for boiling water reactor
Assignee: Individual
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Filing: 1959-12-11
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Granted: 1961-08-01
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Expires: 1979-12-11
Abstract
No abstract record available.
Inventors
- 👤 Petrick Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:33
CPC Classifications
G; G21; G21C; G21C15/00; G21C15/24; G21C15/26; G21C1/00; G21C1/04; G21C1/06; G21C1/08; G21C3/00; G21C3/30; G21C3/32; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A NEUTRONIC REACTOR COMPRISING A PRESSURE VESSEL, MEANS DEFINING A PLURALITY OF VERTICAL CHANNELS DISPOSED WITHIN THE PRESSURE VESSEL, A BODY OF STEAM-FORMING LIQUID SURROUNDING THE CHANNEL-DEFINING MEANS WITHIN THE PRESSURE VESSEL, THE LOWER ENDS OF SAID CHANNELS COMMUNICATING WITH THE BODY OF STEAM-FORMING LIQUID, A PLURALITY OF RISERS CONCENTRICALLY POSITIONED ABOVE SAID CHANNEL-DEFINING MEANS FORMING ANNULI THEREBETWEEN, EACH ANNULUS ASSOCIATED WITH A PRESELECTED SET OF CHANNELS AND COMMUNICATING ONLY THEREWITH, EACH OF SAID ANNULI ADAPTED TO HAVE A DIFFERENT FLOW AREA AND COMMUNICATING AT ITS UPPER END WITH SAID BODY OF LIQUID, AND MEANS TO ESTABLISH A NEUTRONIC CHAIN REACTION WITHIN THE PRESSURE VESSEL OF SUFFICIENT INTENSITY TO FORM STEAM WITHIN THE CHANNELDEFINING MEANS AND ESTABLISH CIRCULATION UPWARD THROUGH SAID CHANNELS AND SAID RISERS AND DOWNWARD AROUND SAID CHANNEL-DEFINING MEANS.
Claim 2
Dependent Claim
131 words
A NEUTRONIC REACTOR COMPRISING A PRESSURE VESSEL, MEANS DEFINING A PLURALITY OF VERTICAL CHANNELS DISPOSED WITHIN THE PRESSURE VESSEL, A BODY OF STEAM-FORMING LIQUID SURROUNDING THE CHANNEL-DEFINING MEANS WITHIN THE PRESSURE VESSEL, THE LOWER ENDS OF SAID CHANNELS COMMUNICATING WITH THE BODY OF STEAM-FORMING LIQUID, A PLURALITY OF RISERS CONCENTRICALLY POSITIONED ABOVE SAID CHANNEL-DEFINING MEANS FORMING ANNULI THEREBETWEEN, EACH ANNULUS ASSOCIATED WITH A PRESELECTED SET OF CHANNELS AND COMMUNICATING ONLY THEREWITH, EACH OF SAID ANNULI ADAPTED TO HAVE A DIFFERENT FLOW AREA AND COMMUNICATING AT ITS UPPER END WITH SAID BODY OF LIQUID, AND MEANS TO ESTABLISH A NEUTRONIC CHAIN REACTION WITHIN THE PRESSURE VESSEL OF SUFFICIENT INTENSITY TO FORM STEAM WITHIN THE CHANNELDEFINING MEANS AND ESTABLISH CIRCULATION UPWARD THROUGH SAID CHANNELS AND SAID RISERS AND DOWNWARD AROUND SAID CHANNEL-DEFINING MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |