US3735175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for removing heat from within a vacuum and from within a mass
Assignee: Inter-Probe Inc
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Filing: 1971-03-15
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Granted: 1973-05-22
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Expires: 1991-03-15
Abstract
Abstract A method and apparatus for cooling elements generating heat within a vacuum and the center of a large mass of hot material including a heat pipe having the input end within a vacuum or a large mass of material and the output end exterior thereof, and means for subjecting the output end to an electrostatic field to materially increase the rate of heat transfer into the atmosphere.
Inventors
- 👤 O Blomgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:32
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02; H01J35/04; H01J35/08; H01J35/10; H01J35/105; H01J35/106; H01J2235/00; H01J2235/12; H01J2235/1225; H01J2235/1262; H01J2235/1287
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
83 words
In an X-ray tube having a casing defining a vacuum chamber, a rotating target therein mounted on a shaft extending from the casing and an electrode therein adjacent the target adapted to be connected to a source of power to direct a stream of electrons against the target, the method of removing heat from the target comprising the steps of inserting a heat pipe in the shaft so that the input end absorbs heat from the target, and electrostatically cooling the output end.
Claim 2
Dependent Claim
83 words
In an X-ray tube having a casing defining a vacuum chamber, a rotating target therein mounted on a shaft extending from the casing and an electrode therein adjacent the target adapted to be connected to a source of power to direct a stream of electrons against the target, the method of removing heat from the target comprising the steps of inserting a heat pipe in the shaft so that the input end absorbs heat from the target, and electrostatically cooling the output end.
Claim 3
Dependent Claim
50 words
The method of claim 1, wherein the step of electrostatically cooling the output end of the heat pipe includes spacing probe means adjacent the output end of the heat pipe, and connecting the probe means to a source of high voltage direct current potential such that will cause rapid cooling.
Claim 4
Dependent Claim
121 words
In an X-ray tube having a casing defining a vacuum chamber, a rotating target therein mounted on a shaft extending from the casing and an electrode therein adjacent the target adapted to be connected to a source of power to direct a stream of electrons against the target, apparatus for removing heat from the target and from within the vacuum chamber which comprises, a heat pipe extending through the shaft from adjacent the target to a point outside of the chamber exposed to the ambient atmosphere, and means for subjecting the output end of the heat pipe outside the chamber to an electrostatic field of such intensity as to substantially increase the transfer of heat from the pipe into the atmosphere.
Claim 5
Dependent Claim
121 words
In an X-ray tube having a casing defining a vacuum chamber, a rotating target therein mounted on a shaft extending from the casing and an electrode therein adjacent the target adapted to be connected to a source of power to direct a stream of electrons against the target, apparatus for removing heat from the target and from within the vacuum chamber which comprises, a heat pipe extending through the shaft from adjacent the target to a point outside of the chamber exposed to the ambient atmosphere, and means for subjecting the output end of the heat pipe outside the chamber to an electrostatic field of such intensity as to substantially increase the transfer of heat from the pipe into the atmosphere.
Claim 6
Dependent Claim
65 words
The combination as defined in claim 3 wherein said means for subjecting the output end of the heat pipe to an electrostatic field includes a probe means spaced adjacent the output end of the heat pipe, and a source of high voltage direct current potential of such a level that the transfer of heat from the heat pipe to the atmosphere will be materially increased.
Claim 7
Dependent Claim
113 words
In an X-ray tube haVing a casing, defining a vacuum chamber, a rotating target therein mounted on a shaft extending from the casing and an electrode therein adjacent the target adapted to be connected to a source of power to direct a stream of electrons against the target, apparatus for removing heat from the target and from within the vacuum chamber which comprises, said rotating target and shaft therefor being hollow and in the form of a heat pipe, and means for subjecting the end of the shaft extending from the casing to an electrostatic field of such intensity as to substantially increase the transfer of heat from the shaft into the atmosphere.
Claim 8
Dependent Claim
113 words
In an X-ray tube haVing a casing, defining a vacuum chamber, a rotating target therein mounted on a shaft extending from the casing and an electrode therein adjacent the target adapted to be connected to a source of power to direct a stream of electrons against the target, apparatus for removing heat from the target and from within the vacuum chamber which comprises, said rotating target and shaft therefor being hollow and in the form of a heat pipe, and means for subjecting the end of the shaft extending from the casing to an electrostatic field of such intensity as to substantially increase the transfer of heat from the shaft into the atmosphere.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |