US3130779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light boiler for nuclear energy installation
Assignee: Individual
•
Filing: 1959-04-29
•
Granted: 1964-04-28
•
Expires: 1979-04-29
Abstract
No abstract record available.
Inventors
- 👤 Huet Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:08
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/02; F22B1/18; F22B1/1823
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A BOILER HAVING A CASING CONTAINING HEAT EXCHANGER TUBES CONSTITUTED BY A PLURALITY OF TUBES WOUND HELICALLY TO FORM FLUID CIRCULATING CIRCUITS CO-AXIAL WITH THE AXIS OF THE CASING AND ARRANGED IN PARALLEL, THE TUBES BEING SPIRALLY WOUND UP TO CONSTITUTE A PLURALITY OF CYLINDRICAL DRUMS CO-AXIAL WITH THE DUCT CASING AND THE DIAMETER OF SAID TUBES INCREASING FROM THE CENTRAL TO THE MOST EXTERIOR DRUM, A PLURALITY OF SPIRALLY WOUND TUBES BEING WOUND UP TO FORM EACH CYLINDRICAL DRUM; VERTICAL INLET AND OUTLET HEADERS DISPOSED SO THAT THEIR AXES ALINE WITH THE WALL OF EACH CYLINDRICAL DRUM, A PLURALITY OF SUCH HEADERS BEING PROVIDED AT THE BASE AND AT THE TOP OF EACH CYLINDRICAL DRUM AND CONNECTED TO SAID TUBES, THE TUBES OF EACH CYLINDRICAL DRUM BEING WOUND IN CONTACT IN ORDER TO MAKE A CONTINUOUS WALL ON THE SURFACE OF EACH CYLINDRICAL DRUM.
Claim 2
Dependent Claim
145 words
A BOILER HAVING A CASING CONTAINING HEAT EXCHANGER TUBES CONSTITUTED BY A PLURALITY OF TUBES WOUND HELICALLY TO FORM FLUID CIRCULATING CIRCUITS CO-AXIAL WITH THE AXIS OF THE CASING AND ARRANGED IN PARALLEL, THE TUBES BEING SPIRALLY WOUND UP TO CONSTITUTE A PLURALITY OF CYLINDRICAL DRUMS CO-AXIAL WITH THE DUCT CASING AND THE DIAMETER OF SAID TUBES INCREASING FROM THE CENTRAL TO THE MOST EXTERIOR DRUM, A PLURALITY OF SPIRALLY WOUND TUBES BEING WOUND UP TO FORM EACH CYLINDRICAL DRUM; VERTICAL INLET AND OUTLET HEADERS DISPOSED SO THAT THEIR AXES ALINE WITH THE WALL OF EACH CYLINDRICAL DRUM, A PLURALITY OF SUCH HEADERS BEING PROVIDED AT THE BASE AND AT THE TOP OF EACH CYLINDRICAL DRUM AND CONNECTED TO SAID TUBES, THE TUBES OF EACH CYLINDRICAL DRUM BEING WOUND IN CONTACT IN ORDER TO MAKE A CONTINUOUS WALL ON THE SURFACE OF EACH CYLINDRICAL DRUM.
References Cited (Backward Citations)
US531756A
Cited
US1752452A
Cited
US1825433A
Cited
US1892778A
Cited
US2160898A
Cited
US2693941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |