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US3660053A
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Platinum-containing x-ray target
Assignee: Schwarzkopf Technologies Corp
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Filing: 1969-11-18
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Granted: 1972-05-02
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Expires: 1989-11-18
Abstract
Abstract This invention relates to alloys useful in X-ray targets comprising tungsten and platinum.
Inventors
- 👤 Rudolf Palme
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:15
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02; H01J35/04; H01J35/08; H01J35/10; H01J35/101; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
29 words
An X-ray tube target as in claim 1 wherein the platinum is present in the said alloy in an amount of from about 0.15 to 1.5 percent by weight.
Claim 2
Dependent Claim
25 words
An X-ray tube target as in claim 1 wherein the said alloy also contains an amount of rhenium of up to 10 percent by weight.
Claim 3
Dependent Claim
29 words
An X-ray tube target as in claim 3 wherein the platinum is present in the said alloy in an amount of from about 0.15 to 1.5 percent by weight.
Claim 4
Dependent Claim
13 words
An X-ray tube target as in claim 3 wherein the base comprises molybdenum.
Claim 5
Dependent Claim
25 words
An X-ray tube target as in claim 1 wherein the said alloy also contains a minor amount of at least one of osmium and iridium.
Claim 6
Dependent Claim
13 words
An X-ray tube target as in claim 1 wherein the base comprises molybdenum.
Claim 7
Dependent Claim
13 words
An X-ray tube target as in claim 1 wherein the base comprises graphite.
Claim 8
Dependent Claim
37 words
An X-ray tube target as in claim 8 wherein there is an intermediate layer interposed between the graphite and the focal track, said intermediate layer being of a material capable of preventing reaction between tungsten and graphite.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |