US4574388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core for molybdenum alloy x-ray anode substrate
Assignee: General Electric Co
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Filing: 1984-05-24
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Granted: 1986-03-04
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Expires: 2004-05-24
Abstract
Abstract An x-ray tube anode formed of a dispersion-strengthened molybdenum alloy which is not compatible with a stem of a different material for purposes of diffusion bonding, includes an integral core insert composed of a substantially pure molybdenum alloy. The insert is compatible with both the adjoining materials and allows for a diffusion bonding of the anode to the stem.
Inventors
- 👤 John H. Port
- 👤 Dennis G. Kukoleck
- 👤 Robert M. Guezuraga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:43
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02; H01J35/04; H01J35/08; H01J35/10; H01J35/108
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
94 words
An anode assembly for attachment to a rotatable stem of an x-ray tube comprising: a body having a central cavity formed therein and having a focal track applied to one face thereof, said body being composed of a first material that is not susceptible to diffusion bonding with the stem; and a core disposed in said central cavity to form an integral part of said body, said core having a central bore formed therein for receiving the stem and being composed of a second material which is susceptible to diffusion bonding with the stem.
Claim 2
Dependent Claim
94 words
An anode assembly for attachment to a rotatable stem of an x-ray tube comprising: a body having a central cavity formed therein and having a focal track applied to one face thereof, said body being composed of a first material that is not susceptible to diffusion bonding with the stem; and a core disposed in said central cavity to form an integral part of said body, said core having a central bore formed therein for receiving the stem and being composed of a second material which is susceptible to diffusion bonding with the stem.
Claim 3
Dependent Claim
17 words
An anode as set forth in claim 1 wherein said first material is a high-strength molybdenum alloy.
Claim 4
Dependent Claim
17 words
An anode as set forth in claim 2 wherein said molybdenum alloy is of the dispersion-strengthened type.
Claim 5
Dependent Claim
17 words
An anode assembly as set forth in claim 1 wherein said second material consists essentially of molybdenum.
Claim 6
Dependent Claim
73 words
A rotary anode assembly for attachment to an axial stem comprising a disc having an outer annulus composed of a first material which is not compatible with said stem for purposes of diffusion bonding, and an inner annulus attached to said outer annulus and having a central opening for receiving the axial stem, said inner annulus being composed of a second material which is compatible with said stem for purposes of diffusion bonding.
Claim 7
Dependent Claim
73 words
A rotary anode assembly for attachment to an axial stem comprising a disc having an outer annulus composed of a first material which is not compatible with said stem for purposes of diffusion bonding, and an inner annulus attached to said outer annulus and having a central opening for receiving the axial stem, said inner annulus being composed of a second material which is compatible with said stem for purposes of diffusion bonding.
Claim 8
Dependent Claim
21 words
A rotary anode assembly as set forth in claim 5 wherein said first material is comprised of a dispersion-strengthened, molybdenum alloy.
Claim 9
Dependent Claim
18 words
A rotary anode assembly as set forth in claim 5 wherein said second material is comprised of molybdenum.
Claim 10
Dependent Claim
68 words
A rotary x-ray tube anode assembly comprising an outer annulus composed of a first material of high-strength material and having a focal track attached to one surface thereof, and an inner annulus integrally attached to said outer annulus and having a central bore formed therein for receiving a rotatable stem, said inner annulus being composed of a second material which is susceptible to diffusion bonding to said stem.
Claim 11
Dependent Claim
68 words
A rotary x-ray tube anode assembly comprising an outer annulus composed of a first material of high-strength material and having a focal track attached to one surface thereof, and an inner annulus integrally attached to said outer annulus and having a central bore formed therein for receiving a rotatable stem, said inner annulus being composed of a second material which is susceptible to diffusion bonding to said stem.
Claim 12
Dependent Claim
50 words
In a rotary anode of the type having a disc formed of a molybdenum alloy material for attachment to the rotatable stem, an interface structure comprising an annular insert integrally attached to and forming a part of said disc, said insert being composed of a material consisting essentially of molybdenum.
Claim 13
Dependent Claim
50 words
In a rotary anode of the type having a disc formed of a molybdenum alloy material for attachment to the rotatable stem, an interface structure comprising an annular insert integrally attached to and forming a part of said disc, said insert being composed of a material consisting essentially of molybdenum.
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) | 1989-03-03 | 1989-09-02 | 1990-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-03 | 1993-09-02 | 1994-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-03 | 1997-09-02 | 1998-03-04 | $7700.00 | Window Closed / Lapsed |