US3801846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray tube with a rotary anode
Assignee: Siemens AG
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Filing: 1973-03-15
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Granted: 1974-04-02
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Expires: 1993-03-15
Abstract
Abstract An X-ray tube wherein the anode is driven by an induction motor and is provided with a focal point, the cathode being directed upon the focal point path, the rotor of the motor being connected with the rotary axle of the anode and being located within the vacuum case, while the stator is located outside of the case, and wherein the case in the part between the rotor and the stator consists of metal. The tube is particularly characterized in that this metal part is a poor conductor of electrical current.
Inventors
- 👤 K Haberrecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:14
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/14; H01; H01J; H01J35/00; H01J35/02; H01J35/04; H01J35/08; H01J35/10; H01J35/101; H01J35/1017; H01J35/1024; H01J2235/00; H01J2235/10; H01J2235/1026
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
70 words
An X-ray tube, comprising an anode, a cathode, a motor having a stator and a rotor connected with said anode for rotating said anode, and a case, said anode, said cathode and said rotor being located within said case, said stator being located outside of said case, said case having a portion located between said rotor and said stator consisting of metal which is a poor conductor of electrical current.
Claim 2
Dependent Claim
70 words
An X-ray tube, comprising an anode, a cathode, a motor having a stator and a rotor connected with said anode for rotating said anode, and a case, said anode, said cathode and said rotor being located within said case, said stator being located outside of said case, said case having a portion located between said rotor and said stator consisting of metal which is a poor conductor of electrical current.
Claim 3
Dependent Claim
35 words
An X-ray tube according to claim 1, wherein said case has a portion consisting of glass which carries said cathode and encloses said anode, and a pot-like portion consisting of metal and enclosing said rotor.
Claim 4
Dependent Claim
19 words
An X-ray tube according to claim 2, wherein said glass portion has a flange welded to the metal portion.
Claim 5
Dependent Claim
13 words
An X-ray tube according to claim 1, wherein said metal is rust-free steel.
Claim 6
Dependent Claim
44 words
An X-ray tube according to claim 1, wherein said anode has an axle, and bearings supporting said axle at opposite ends, each of said bearings having a separate rotor, the portion of the case enclosing the rotors consisting of metal of poor electrical conductivity.
References Cited (Backward Citations)
US2336769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |