US3914633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray tube comprising a liquid-cooled anode
Assignee: US Philips Corp
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Filing: 1973-10-16
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Granted: 1975-10-21
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Expires: 1993-10-16
Abstract
Abstract The cooling side of the anode target plate of an X-ray tube is provided with a surface-increasing cooling structure. An injection device for a cooling liquid is mounted against the cooling structure such that the cooling liquid is forced to flow through ducts present in the cooling structure. At least the material of the surface of the cooling structure is preferably silver.
Inventors
- 👤 Willem Hildebrand Diemer
- 👤 Gerrit Zwep
- 👤 Jan Mulder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:47
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02; H01J35/04; H01J35/08; H01J35/12; H01J35/13
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
100 words
In an X-ray tube, an anode comprising: a wall; an anode target plate of heat conductive material having on one side thereof a target area for an electron beam and having the opposite side thereof facing said wall with an array of heat conductive projections substantially increasing the heat radiation surface thereof and extending from said plate to said wall effectively forming an interconnected system of ducts around said projections; and means for directing cooling medium between said wall and plate forcing said medium turbulentyly through said system of ducts around said heat conductive projections, thereby cooling said target area.
Claim 2
Dependent Claim
100 words
In an X-ray tube, an anode comprising: a wall; an anode target plate of heat conductive material having on one side thereof a target area for an electron beam and having the opposite side thereof facing said wall with an array of heat conductive projections substantially increasing the heat radiation surface thereof and extending from said plate to said wall effectively forming an interconnected system of ducts around said projections; and means for directing cooling medium between said wall and plate forcing said medium turbulentyly through said system of ducts around said heat conductive projections, thereby cooling said target area.
Claim 3
Dependent Claim
19 words
An anode as defined in claim 1 wherein said array of projections is a regular pattern of adjoining pyramids.
Claim 4
Dependent Claim
26 words
An anode as defined in claim 1 wherein said means for directing cooling medium directs said cooling medium through said wall toward said anode target plate.
Claim 5
Dependent Claim
20 words
An anode as defined in claim 3 wherein said means for directing cooling medium includes an aperture in said wall.
Claim 6
Dependent Claim
19 words
An anode as defined in claim 4 wherein said aperture corresponds in shape and position to the target spot.
Claim 7
Dependent Claim
69 words
An anode as defined in claim 4 wherein said aperture is elongate and said wall and plate are joined along opposing edges thereof to force said cooling medium substantially in opposite directions lateral with respect to said elongate aperture, said projections being positioned in a staggered array with respect to said opposite directions to cause said cooling medium to flow in a zig zag fashion around said staggered projections.
References Cited (Backward Citations)
US2886723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |