US3782449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature stabilization system
Assignee: European Atomic Energy Community Euratom
•
Filing: 1969-11-24
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Granted: 1974-01-01
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Expires: 1989-11-24
Abstract
Abstract A system for temperature stabilization through the use of a heat pipe, that zone of the heat pipe which is remote from the heating zone having an inert gas plug whose volume varies with the vapour pressure of the heat vehicle. The plug effects variation in the heat pipe wall area actually radiating heat according to changes in the volume of the plug, and includes a secondary heat pipe which is in good thermal connection with that part of the first heat pipe where the inert gas plug is disposed.
Inventors
- 👤 C Busse
- 👤 K Schlitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:11
CPC Classifications
F; F28; F28D; F28D15/00; F28D15/02; F28D15/0275; F28D15/06; G; G05; G05D; G05D23/00; G05D23/01; H; H01; H01J; H01J45/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
135 words
A system for temperature stabilization comprising an arrangement of at least two serially disposed heat pipes, the first heat pipe having a heating zone coupled to a space where stabilization of temperature is desired and a cooling zone, said first heat pipe enclosing a condensable-vaporizable heat vehicle and an inert gas plug which during operation is displaced in said cooling zone, there being a boundary region between the heat vehicle and the gas plug; a second heat pipe having a heating zone and a cooling zone, the heating zone of said second heat pipe being in good thermal connection with the cooling zone of the first heat pipe where the inert gas plug is disposed and a displacement member positioned in the heat pipe interior to effectively reduce its cross-sectional area in the boundary region.
Claim 2
Independent Claim
135 words
A system for temperature stabilization comprising an arrangement of at least two serially disposed heat pipes, the first heat pipe having a heating zone coupled to a space where stabilization of temperature is desired and a cooling zone, said first heat pipe enclosing a condensable-vaporizable heat vehicle and an inert gas plug which during operation is displaced in said cooling zone, there being a boundary region between the heat vehicle and the gas plug; a second heat pipe having a heating zone and a cooling zone, the heating zone of said second heat pipe being in good thermal connection with the cooling zone of the first heat pipe where the inert gas plug is disposed and a displacement member positioned in the heat pipe interior to effectively reduce its cross-sectional area in the boundary region.
Claim 3
Dependent Claim
31 words
A system as set forth in claim 1, in which the displacement member is in good mechanical and thermal connection with the heat pipe end wall remote from the heating zone.
Claim 4
Dependent Claim
30 words
A system as set forth in claim 2, in which the displacement member is a hollow empty receptacle whose wall thickness is the minimum necessary to resist the working pressure.
Claim 5
Dependent Claim
28 words
The system of claim 1 in which the second heat pipe also encloses a condensable-vaporizable heat vehicle and an inert gas plug, there being a boundary region therebetween.
Claim 6
Dependent Claim
26 words
The system of claIm 4 including a displacement member positioned in the second heat pipe interior to effectively reduce its cross-sectional area in the boundary region.
Claim 7
Dependent Claim
53 words
The system of claim 4 including a tertiary heat pipe enclosing a condensable-vaporizable heat vehicle and an inert gas plug, there being a boundary region therebetween; the heating zone of the tertiary pipe being in good thermal connection with that point of the second heat pipe where its inert gas plug is disposed.
Claim 8
Dependent Claim
26 words
The system of claim 6 including a displacement member positioned in the tertiary heat pipe interior to effectively reduce its cross-sectional area in the boundary region.
References Cited (Backward Citations)
US2581347A
Cited
US3613773A
Cited
US3457436A
Cited
US3405299A
Cited
US3378449A
Cited
US3516487A
Cited
US3525386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |