Patent US1468321A successfully refreshed from Google Patents.
Patent US3952005A successfully refreshed from Google Patents.
Patent US5495261A successfully refreshed from Google Patents.
Patent US4255685A successfully refreshed from Google Patents.
US4255685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating anode for x-ray tubes
Assignee: Siemens AG
•
Filing: 1979-07-03
•
Granted: 1981-03-10
•
Expires: 1999-07-03
Abstract
Abstract In order to reduce stresses which occur during radiation production because of the heating-up of the anode, radial bores are formed in the main body member of the anode which extend under the focus path region. Thus, smooth solder surfaces free from recesses can be obtained for receiving auxiliary material such as graphite for increased heat storage and radiation capability. The disclosed rotating anode is particularly suited for x-ray tubes utilized in medical diagnostics.
Inventors
- 👤 Rudolf Friedel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:30
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02; H01J35/04; H01J35/08; H01J35/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
114 words
An x-ray tube rotating anode comprising an actual anode plate (23), said actual anode plate (23) comprising a main body member (24) having an upper side carrying an annular focus path region (9, 10) thereon, and having an underside opposite said upper side and integral with said main body member (24), said actual anode plate having radial bores (13) extending radially in said main body member (24) under said annular focus path region (9, 10) and said bores (13) having cross sectional dimensions less than the thickness of the main body member (24) at the outer perimeter thereof, and said bores (13) being entirely clear of said underside of said main body member (24).
Claim 2
Dependent Claim
114 words
An x-ray tube rotating anode comprising an actual anode plate (23), said actual anode plate (23) comprising a main body member (24) having an upper side carrying an annular focus path region (9, 10) thereon, and having an underside opposite said upper side and integral with said main body member (24), said actual anode plate having radial bores (13) extending radially in said main body member (24) under said annular focus path region (9, 10) and said bores (13) having cross sectional dimensions less than the thickness of the main body member (24) at the outer perimeter thereof, and said bores (13) being entirely clear of said underside of said main body member (24).
Claim 3
Dependent Claim
36 words
A rotating anode according to claim 1, characterized in that the bores begin at the outer edge of the main body member and end at an interior region which is enclosed by the focus path region.
Claim 4
Dependent Claim
33 words
A rotating anode according to claim 1, characterized in that the bores emerge at the surface of the main body member at a region thereof which is enclosed by the focus path region.
Claim 5
Dependent Claim
40 words
A rotating anode according to claim 2, characterized in that the interior end of each of the bores lies in the main body member and extends generally axially to the surface at the focus side of the main body member.
Claim 6
Dependent Claim
36 words
An anode according to claim 1, characterized in that a graphite member (24') is soldered to said underside of the main body member, the upper side carrying the focus path regions being integral with said underside.
Claim 7
Dependent Claim
44 words
An anode according to claim 5, with the central radially extending axis of each radial bore (13) being substantially closer to the upper side of said main body member than to said underside thereof at the outer perimeter of said main body member (24).
References Cited (Backward Citations)
US2935633A
Cited
US3751702A
Cited
US3710170A
Cited
US3836803A
Cited
US3836804A
Cited
US3819971A
Cited
US3973156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |