US3836803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary anode and an x-ray tube provided therewith
Assignee: Siemens AG
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Filing: 1971-12-22
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Granted: 1974-09-17
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Expires: 1991-12-22
Abstract
Abstract A rotary anode for an X-ray tube containing an anode plate of difficultly meltable material upon which lies the focal spot path, is characterized by the provision of radial cuts in the plate.
Inventors
- 👤 K Silbermann
- 👤 G Appelt
- 👤 K Dietz
- 👤 A Lenert
- 👤 A Elsas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:19
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02; H01J35/04; H01J35/08; H01J35/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
53 words
A rotary anode for an X-ray tube, comprising an anode plate of refractory material upon which lies the focal point path, said plate having a radial cut upon that part of the radius which extends from an outer edge to close to the center of the plate, but terminates outside of the center.
Claim 2
Dependent Claim
53 words
A rotary anode for an X-ray tube, comprising an anode plate of refractory material upon which lies the focal point path, said plate having a radial cut upon that part of the radius which extends from an outer edge to close to the center of the plate, but terminates outside of the center.
Claim 3
Dependent Claim
31 words
A rotary anode according to claim 1, wherein said plate has at least three spaced radial cuts, the radial lengths of these cuts at least including surfaces struck by the electrons.
Claim 4
Dependent Claim
43 words
A rotary anode according to claim 1, wherein said plate has two focal spot paths, some of said cuts extending to the inner edge of the outer focal spot path, other cuts extending to the inner edge of the inner focal spot path.
Claim 5
Dependent Claim
24 words
A rotary anode according to claim 1, wherein the direction of the cut at least partly deviates from he axial direction of the plate.
Claim 6
Dependent Claim
21 words
A rotary anode according to claim 1, wherein said plate has a central portion which is thicker than the edge portion.
Claim 7
Dependent Claim
27 words
A rotary anode according to claim 1, wherein said cuts extend from the bottom of the plate and penetrate at least to one half of the plate.
Claim 8
Dependent Claim
10 words
An X-ray tube having an anode described in claim 1.
References Cited (Backward Citations)
DE947998C
Cited
US3763387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |