Patent US3870916A successfully refreshed from Google Patents.
US3870916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray tube
Assignee: Forschungszentrum Jülich
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Filing: 1974-02-20
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Granted: 1975-03-11
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Expires: 1994-02-20
Abstract
Abstract An x-ray tube with an anode which is located in a high vacuum chamber connectable to a vacuum pump and is passed through by cooling fluid. The anode which comprises a peripheral mantle surface and lateral surfaces which are approximately parallel to each other is disengageably connected to a rotatable hollow shaft for rotation therewith and has its peripheral mantle surface located within the region of the electron beams emitted by the cathode. The x-ray tube furthermore comprises a distributing member for distributing the cooling fluid, which distributing member is arranged in the interior of and coaxially with the rotatable anode. The peripheral mantle surface is formed by the central peripheral portion of a ring which has a U-shaped cross section and the legs of which are detachably connected to the lateral surfaces of the anode, O-rings being provided for sealing purposes between the legs of the ring and the lateral surfaces of the anode.
Inventors
- 👤 Eckart Kussel
- 👤 Heinz-Gunther Haubold
- 👤 Peter Wombacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:21
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02; H01J35/04; H01J35/08; H01J35/10; H01J35/105; H01J35/106
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
170 words
An X-ray tube which includes: a high vacuum chamber connectaBle to a vacuum pump, a rotation-symmetric rotatable anode having a hollow space therein and being rotatably arranged in said high vacuum chamber, a rotatable hollow shaft disengageably connected to said anode for rotating the same, conduit means associated with said hollow shaft and communicating with the hollow space of said anode for respectively conveying cooling fluid to and from said anode, a rotatable distributing member arranged within said hollow space of said anode and coaxially therewith and being rotatably connected to said anode including lateral wall means and ring means of a U-shaped cross section the central portion of which forms the peripheral mantle surface of said anode and the legs of which have said lateral wall means detachably connected thereto, sealing means interposed between said legs and said lateral wall means, and a cathode arranged relative to said anode so that said mantle surface of said anode is within the region of the electron beams emitted by said cathode.
Claim 2
Dependent Claim
170 words
An X-ray tube which includes: a high vacuum chamber connectaBle to a vacuum pump, a rotation-symmetric rotatable anode having a hollow space therein and being rotatably arranged in said high vacuum chamber, a rotatable hollow shaft disengageably connected to said anode for rotating the same, conduit means associated with said hollow shaft and communicating with the hollow space of said anode for respectively conveying cooling fluid to and from said anode, a rotatable distributing member arranged within said hollow space of said anode and coaxially therewith and being rotatably connected to said anode including lateral wall means and ring means of a U-shaped cross section the central portion of which forms the peripheral mantle surface of said anode and the legs of which have said lateral wall means detachably connected thereto, sealing means interposed between said legs and said lateral wall means, and a cathode arranged relative to said anode so that said mantle surface of said anode is within the region of the electron beams emitted by said cathode.
Claim 3
Dependent Claim
170 words
An X-ray tube which includes: a high vacuum chamber connectaBle to a vacuum pump, a rotation-symmetric rotatable anode having a hollow space therein and being rotatably arranged in said high vacuum chamber, a rotatable hollow shaft disengageably connected to said anode for rotating the same, conduit means associated with said hollow shaft and communicating with the hollow space of said anode for respectively conveying cooling fluid to and from said anode, a rotatable distributing member arranged within said hollow space of said anode and coaxially therewith and being rotatably connected to said anode including lateral wall means and ring means of a U-shaped cross section the central portion of which forms the peripheral mantle surface of said anode and the legs of which have said lateral wall means detachably connected thereto, sealing means interposed between said legs and said lateral wall means, and a cathode arranged relative to said anode so that said mantle surface of said anode is within the region of the electron beams emitted by said cathode.
Claim 4
Dependent Claim
170 words
An X-ray tube which includes: a high vacuum chamber connectaBle to a vacuum pump, a rotation-symmetric rotatable anode having a hollow space therein and being rotatably arranged in said high vacuum chamber, a rotatable hollow shaft disengageably connected to said anode for rotating the same, conduit means associated with said hollow shaft and communicating with the hollow space of said anode for respectively conveying cooling fluid to and from said anode, a rotatable distributing member arranged within said hollow space of said anode and coaxially therewith and being rotatably connected to said anode including lateral wall means and ring means of a U-shaped cross section the central portion of which forms the peripheral mantle surface of said anode and the legs of which have said lateral wall means detachably connected thereto, sealing means interposed between said legs and said lateral wall means, and a cathode arranged relative to said anode so that said mantle surface of said anode is within the region of the electron beams emitted by said cathode.
Claim 5
Dependent Claim
33 words
An X-ray tube according to claim 1, in which at least that portion of said anode which is formed by said ring means is made of a suitable highly pure vacuum cast material.
Claim 6
Dependent Claim
32 words
An X-ray tube according to claim 1, in which at least that portion of said anode which is formed by said ring means is made of highly pure vacuum cast electrolyte copper.
Claim 7
Dependent Claim
192 words
An X-ray tube according to claim 1, in which said distributing member includes a rotation-symmetric body and a plurality of elements connected to said rotation symmetric body and having lateral surfaces inclined from their inner circumference to their outer circumference in such a manner that the distance between the lateral surfaces of said distributing member and the inner surfaces of the lateral walls of said rotatable anode decreases in radial outward direction of said distributing member in such a way that when considering the radially increasing outer circumference a substantially uniform speed profile of the cooling fluid flowing in and out of said anode in the vicinity of its axis of rotation is obtained, and fin means arranged on the outer lateral surfaces of said distributing member, the outer circumference of said distributing member being formed by at least one inclined edge each between each two adjacent fin means with each of said edges ascending in the direction or rotation of said anode in such a way that at the areas of greatest dimensions of said distributing member the latter is only slightly spaced from the inner mantle surface of said anode.
Claim 8
Dependent Claim
22 words
An X-ray tube according to claim 3, in which said elements are flat surface parts with radially extending surfaces engaging each other.
Claim 9
Dependent Claim
54 words
An X-ray tube according to claim 3, in which each of said elements has two surfaces which are parallel to each other at the same distance from the axis of rotation of the distributing member, and in which said two surfaces of each of said elements engage corresponding surfaces of the respective adjacent elements.
References Cited (Backward Citations)
US3546511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |