US3303877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Ramen Corp A B
•
Filing: 1964-06-01
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Granted: 1967-02-14
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Expires: 1984-06-01
Abstract
No abstract record available.
Inventors
- 👤 Ramen Torsten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:14
CPC Classifications
F; F28; F28D; F28D9/00; F28D9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
222 words
A HEAT EXCHANGER COMPRISING A PLURALITY OF SUPERIMPOSED FRUSTO CONICAL ELEMENTS EACH HAVING A FRUSTO CONICAL PORTION, A BRIM EXTENDING FROM THE LARGER END OF THE FRUSTO CONICAL PORTION, AND AN END PLATE COVERING THE SMALLER END OF THE FRUSTO CONICAL PORTION, THE THICKNESS OF SAID BRIM AND END PLATE BEING GREATER THAN THAT OF SAID FRUSTO CONICAL PORTION, THE OUTER SURFACE OF EACH OF SAID FRUSTO CONICAL PORTIONS BEING PROVIDED WITH A HELICALLY EXTENDING RIDGE EXTENDING FROM THE BRIM TO THE END PLATE AND ABUTTING THE SMOOTH INNER SURFACE OF THE FRUSTO CONICAL PORTION OF AN ADJACENT ELEMENT TO DEFINE A HELICAL FLOW PATH BETWEEN SAID ELEMENTS; A FIRST INLET AND OUTLET CONDUIT EXTENDING THROUGH THE BRIM OF THE INNERMOST ELEMENT; A SECOND INLET AND OUTLET CONDUIT EXTENDING THROUGH THE END PLATE OF SAID INNERMOST ELEMENT; A PAIR OF OPENINGS FORMED IN THE BRIM AND IN THE END PLATE OF EACH OF SAID ELEMENTS, A SERIES OF SAID OPENINGS BEING ALIGNED IN REGISTRATION WITH A CORRESPONDING CONDUIT, A CHANNEL FORMED AROUND SAID OPENINGS; A PLURALITY OF SEALING RINGS DISPOSED IN A PORTION OF SAID CHANNELS, SAID RINGS BEING SHAPED AND ARRANGED TO DIRECT FLUID FLOW FROM SAID FIRST INLET THROUGH ALTERNATE FLOW PATHS TO SAID SECOND OUTLET AND FROM SAID SECOND INLET THROUGH THE OTHER FLOW PATHS TO SAID FIRST OUTLET.
Claim 2
Dependent Claim
222 words
A HEAT EXCHANGER COMPRISING A PLURALITY OF SUPERIMPOSED FRUSTO CONICAL ELEMENTS EACH HAVING A FRUSTO CONICAL PORTION, A BRIM EXTENDING FROM THE LARGER END OF THE FRUSTO CONICAL PORTION, AND AN END PLATE COVERING THE SMALLER END OF THE FRUSTO CONICAL PORTION, THE THICKNESS OF SAID BRIM AND END PLATE BEING GREATER THAN THAT OF SAID FRUSTO CONICAL PORTION, THE OUTER SURFACE OF EACH OF SAID FRUSTO CONICAL PORTIONS BEING PROVIDED WITH A HELICALLY EXTENDING RIDGE EXTENDING FROM THE BRIM TO THE END PLATE AND ABUTTING THE SMOOTH INNER SURFACE OF THE FRUSTO CONICAL PORTION OF AN ADJACENT ELEMENT TO DEFINE A HELICAL FLOW PATH BETWEEN SAID ELEMENTS; A FIRST INLET AND OUTLET CONDUIT EXTENDING THROUGH THE BRIM OF THE INNERMOST ELEMENT; A SECOND INLET AND OUTLET CONDUIT EXTENDING THROUGH THE END PLATE OF SAID INNERMOST ELEMENT; A PAIR OF OPENINGS FORMED IN THE BRIM AND IN THE END PLATE OF EACH OF SAID ELEMENTS, A SERIES OF SAID OPENINGS BEING ALIGNED IN REGISTRATION WITH A CORRESPONDING CONDUIT, A CHANNEL FORMED AROUND SAID OPENINGS; A PLURALITY OF SEALING RINGS DISPOSED IN A PORTION OF SAID CHANNELS, SAID RINGS BEING SHAPED AND ARRANGED TO DIRECT FLUID FLOW FROM SAID FIRST INLET THROUGH ALTERNATE FLOW PATHS TO SAID SECOND OUTLET AND FROM SAID SECOND INLET THROUGH THE OTHER FLOW PATHS TO SAID FIRST OUTLET.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |