US3299949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for evaporative cooling of bodies, and particularly power vacuum tubes
Assignee: Compagnie Francaise Thomson Houston SA
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Filing: 1965-12-14
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Granted: 1967-01-24
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Expires: 1985-12-14
Abstract
No abstract record available.
Inventors
- 👤 Charles A E Beurtheret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:49
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
AN EVAPORATIVE COOLING ARRANGEMENT FOR A BODY HAVING A HIGH THERMAL FLUX COMPRISING A RADIATOR SURROUNDING SAID BODY IN THERMAL CONTACT THEREWITH, SAID RADIATOR BEING ADAPTED FOR IMMERSION IN A LIQUID WITHIN A CONTAINER, SAID RADIATOR HAVING ELONGATED PROTUBERANCES, THE DIMENSIONS OF WHICH ARE LARGE IN RELATION TO THE VAPOR BUBBLES FORMED ON THEIR SURFACE BY BOILING OF SAID LIQUID; ADJACENT PROTUBERANCES DEFINING FLOW CHANNELS EXTENDING SUBSTANTIALLY THROUGHOUT THE LENGTH OF THE RADIATOR; SAID PROTUBERANCES BEING FORMED WITH OUTER END PORTIONS, ADJACENT ONES EXTENDING TOWARDS AND FACING EACH OTHER WITHOUT CLOSING OFF SAID CHANNELS IN AN OUTWARD DIRECTION TO PROVIDE COMMUNICATION OF SAID FLOW CHANNELS LATERALLY OUTWARDLY THEREFROM THROUGH OPENINGS OF LESSER DIMENSION THAN THE WIDTH OF SAID CHANNELS.
Claim 2
Dependent Claim
119 words
AN EVAPORATIVE COOLING ARRANGEMENT FOR A BODY HAVING A HIGH THERMAL FLUX COMPRISING A RADIATOR SURROUNDING SAID BODY IN THERMAL CONTACT THEREWITH, SAID RADIATOR BEING ADAPTED FOR IMMERSION IN A LIQUID WITHIN A CONTAINER, SAID RADIATOR HAVING ELONGATED PROTUBERANCES, THE DIMENSIONS OF WHICH ARE LARGE IN RELATION TO THE VAPOR BUBBLES FORMED ON THEIR SURFACE BY BOILING OF SAID LIQUID; ADJACENT PROTUBERANCES DEFINING FLOW CHANNELS EXTENDING SUBSTANTIALLY THROUGHOUT THE LENGTH OF THE RADIATOR; SAID PROTUBERANCES BEING FORMED WITH OUTER END PORTIONS, ADJACENT ONES EXTENDING TOWARDS AND FACING EACH OTHER WITHOUT CLOSING OFF SAID CHANNELS IN AN OUTWARD DIRECTION TO PROVIDE COMMUNICATION OF SAID FLOW CHANNELS LATERALLY OUTWARDLY THEREFROM THROUGH OPENINGS OF LESSER DIMENSION THAN THE WIDTH OF SAID CHANNELS.
References Cited (Backward Citations)
US2873954A
Cited
FR1226420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |