Patent US3393664A successfully refreshed from Google Patents.
US3393664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger useful in nuclear reactor system
Assignee: Babcock International Ltd
•
Filing: 1964-11-25
•
Granted: 1968-07-23
•
Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 Norman G Worley
- 👤 Anthony J Taylor
- 👤 Charles L Prasher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:22
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/02; F22B1/18; F22B1/1823; G; G21; G21D; G21D5/00; G21D5/04; G21D5/08; G21D5/12; G21D5/14; Y; Y02; Y02E; Y02E30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
VAPOR GENERATING AND SUPERHEATING PLANT INCLUDING A NUCLEAR REACTOR; A FORCED FLOW BOILER INCLUDING SERIALLY CONNECTED VAPOR GENERATING AND SUPERHEATER SECTIONS ADAPTED TO GENERATE AND SUPERHEAT VAPOR IN TUBES THE COMPOSITION OF WHICH FROM LENGTH TO LENGTH THEREOF IS VARIED TO ENABLE THE TUBES TO WITHSTAND THE TEMPERATURES TO WHICH THEY ARE SUBJECTED DURING SERVICE, THE VAPOR GENERATING SECTION BEING LOCATED DOWNSTREAM IN THE COOLANT FLOW PATH OF THE SUPERHEATER SECTION AND CONTAINING TUBE METAL OF LOWER HEAT RESISTANCE THAN THE SUPERHEATER SECTION; MEANS FOR RECIRCULATING COOLANT THROUGH THE REACTOR,
Claim 2
Dependent Claim
90 words
VAPOR GENERATING AND SUPERHEATING PLANT INCLUDING A NUCLEAR REACTOR; A FORCED FLOW BOILER INCLUDING SERIALLY CONNECTED VAPOR GENERATING AND SUPERHEATER SECTIONS ADAPTED TO GENERATE AND SUPERHEAT VAPOR IN TUBES THE COMPOSITION OF WHICH FROM LENGTH TO LENGTH THEREOF IS VARIED TO ENABLE THE TUBES TO WITHSTAND THE TEMPERATURES TO WHICH THEY ARE SUBJECTED DURING SERVICE, THE VAPOR GENERATING SECTION BEING LOCATED DOWNSTREAM IN THE COOLANT FLOW PATH OF THE SUPERHEATER SECTION AND CONTAINING TUBE METAL OF LOWER HEAT RESISTANCE THAN THE SUPERHEATER SECTION; MEANS FOR RECIRCULATING COOLANT THROUGH THE REACTOR,
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) | 1971-07-23 | 1972-01-22 | 1972-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-23 | 1976-01-22 | 1976-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-23 | 1980-01-22 | 1980-07-23 | $7700.00 | Window Closed / Lapsed |