US4000433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray tube for microstructure analysis
Assignee: Siemens AG
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Filing: 1974-11-04
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Granted: 1976-12-28
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Expires: 1994-11-04
Abstract
Abstract An X-ray tube having a copper anode utilized in microstructure analysis. The X-ray tube, on the one hand, facilitates obtaining monochromatically employable X-rays, in which, on the other hand, the extent of reduction of the radiation output is only extremely minute, by providing an X-ray tube which has a copper anode wherein the copper located at least at the focal point is alloyed with a percentage of silver.
Inventors
- 👤 Josef Rohmfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:56
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02; H01J35/04; H01J35/08; H01J35/112
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
64 words
An anode for an X-ray tube for microstructure analysis utilized in the production of monochromatically-employable copper-X-radiation, comprising a copper anode, said copper anode having the copper of at least the portion of said anode located at the focal point of the X-rays alloyed with silver in amount of about 5 .sup.. 10.sup. -3 to 5 .sup.. 10.sup. -1 of silver in percent by weight.
Claim 2
Dependent Claim
64 words
An anode for an X-ray tube for microstructure analysis utilized in the production of monochromatically-employable copper-X-radiation, comprising a copper anode, said copper anode having the copper of at least the portion of said anode located at the focal point of the X-rays alloyed with silver in amount of about 5 .sup.. 10.sup. -3 to 5 .sup.. 10.sup. -1 of silver in percent by weight.
Claim 3
Dependent Claim
26 words
An X-ray tube as claimed in claim 1, said silver quantity being in the range of 5 .sup.. 10.sup. -2 to 2 .sup.. 10.sup. -1 .
Claim 4
Dependent Claim
19 words
An X-ray tube as claimed in claim 1, said copper having 0.1 silver in percent by weight alloyed thereto.
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) | 1979-12-28 | 1980-06-28 | 1980-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-28 | 1984-06-28 | 1984-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-28 | 1988-06-28 | 1988-12-28 | $7700.00 | Window Closed / Lapsed |