Patent US3598178A successfully refreshed from Google Patents.
US3598178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat pipe
Assignee: General Electric Co
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Filing: 1969-05-26
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Granted: 1971-08-10
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Expires: 1989-05-26
Abstract
Abstract A heat pipe including a sealed container having a pair of opposed sidewalls and a pair of ends, one of the ends being located below the other of the ends. A portion of one sidewall of the container is recessed from the remainder thereof adjacent the aforementioned one end, and is thermally conductive to provide a heat transfer surface inside of the container. A baffle located in the container has an edge spaced from the upper edge of the heat transfer surface to form an elongated aperture therewith. The baffle extends in the direction of the other end of the container and forms a reservoir with the sidewalls of the container.
Inventors
- 👤 Fred W Staub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:19
CPC Classifications
F; F28; F28D; F28D15/00; F28D15/02; F28D15/0233
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
199 words
A heat transfer device comprising a sealed container having a pair of opposed sidewalls and a pair of ends, one of said ends located below the other of said ends, a portion of a sidewall of said container being recessed from the remainder thereof adjacent said one end, said portion being thermally conductive and providing a heat transfer surface inside of said container, a baffle located in said container and having an edge spaced from the upper edge of said heat transfer surface to form an elongated aperture therewith, said baffle extending in the direction of said other end of said container, said baffle and another portion of said one sidewall of said container forming a reservoir, a vaporizable liquid being disposed in said container at said one end, means adjacent said other end for condensing vapors of said liquid, whereby as heat is conducted to said heat transfer surface said liquid is converted into vapor and rises to said other end of said container where said vapor is condensed and returned to said reservoir, the liquid in said reservoir flowing downward through said elongated aperture along said heat transfer surface in a film where it is again vaporized.
Claim 2
Dependent Claim
199 words
A heat transfer device comprising a sealed container having a pair of opposed sidewalls and a pair of ends, one of said ends located below the other of said ends, a portion of a sidewall of said container being recessed from the remainder thereof adjacent said one end, said portion being thermally conductive and providing a heat transfer surface inside of said container, a baffle located in said container and having an edge spaced from the upper edge of said heat transfer surface to form an elongated aperture therewith, said baffle extending in the direction of said other end of said container, said baffle and another portion of said one sidewall of said container forming a reservoir, a vaporizable liquid being disposed in said container at said one end, means adjacent said other end for condensing vapors of said liquid, whereby as heat is conducted to said heat transfer surface said liquid is converted into vapor and rises to said other end of said container where said vapor is condensed and returned to said reservoir, the liquid in said reservoir flowing downward through said elongated aperture along said heat transfer surface in a film where it is again vaporized.
Claim 3
Dependent Claim
106 words
The combination of claim 1 in which another baffle is provided extending from said other sidewall toward said one wall, said other baffle extending above and over said one baffle to provide a deflection of unvaporized fluid from said one end and said other end to said reservoir, whereby as heat is applied to said heat transfer surface said liquid is converted into vapor which moves under the pressure created thereby along and around said other baffle to said other end of said container where said vapor is condensed on the surface of said other baffle adjacent said other end and is deflected into said reservoir.
Claim 4
Dependent Claim
22 words
The combination of claim 1 in which each of said opposed sidewalls, and said one portion of said one sidewall are cylinders.
Claim 5
Dependent Claim
22 words
The combination of claim 3 in which the diameter of said one sidewall is greateR than the diameter of said other sidewall.
Claim 6
Dependent Claim
22 words
The combination of claim 3 in which the diameter of said other sidewall is greater than the diameter of said one sidewall.
Claim 7
Dependent Claim
15 words
The combination of claim 1 in which said container is generally rectangular in cross section.
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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |