US3634870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating anode for x-ray generator
Assignee: Machlett Laboratories Inc
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Filing: 1970-03-03
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Granted: 1972-01-11
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Expires: 1990-03-03
Abstract
Abstract An X-ray tube having a rotating anode which is mounted on a bearing structure by means which minimizes the amount of heat which passes from the anode target to the bearings and which includes novel means for compensating for thermal expansion.
Inventors
- 👤 Gordon R Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:08
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02; H01J35/04; H01J35/08; H01J35/10; H01J35/101; H01J35/1017; H01J2235/00; H01J2235/10; H01J2235/1006
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
130 words
An anode structure for X-ray tubes, comprising a rotatably shaft, a target mounted for rotation with said shaft, supporting means to which the target is fixed, a head connecting said means to the shaft, the head having a portion thereof which is small in cross-sectional area compared to said means whereby large amounts of heat are prevented from flowing from the means into the shaft, a pair of bearings having inner and outer races and mounted by their inner races at spaced locations on the shaft, and spring means encircling the shaft and abutting respective outer races at each end, said spring means comprising a metal tubing having a helical slot therein extending from one end for a number of turns for yieldably urging said outer races in opposite directions.
Claim 2
Dependent Claim
130 words
An anode structure for X-ray tubes, comprising a rotatably shaft, a target mounted for rotation with said shaft, supporting means to which the target is fixed, a head connecting said means to the shaft, the head having a portion thereof which is small in cross-sectional area compared to said means whereby large amounts of heat are prevented from flowing from the means into the shaft, a pair of bearings having inner and outer races and mounted by their inner races at spaced locations on the shaft, and spring means encircling the shaft and abutting respective outer races at each end, said spring means comprising a metal tubing having a helical slot therein extending from one end for a number of turns for yieldably urging said outer races in opposite directions.
Claim 3
Dependent Claim
124 words
An X-ray generator comprising a sealed envelope, an anode structure supported for rotation within the envelope, and a fixed shank connecting the anode structure to the envelope, said anode structure comprising a rotatable shaft, a target mounted for rotation with said shaft, supporting means to which the target is fixed, and a head connecting said means to the shaft, a pair of bearings having inner and outer races and mounted by their inner races at spaced locations on the shaft, and spring means encircling the shaft and abutting respective outer races at each end, said spring means comprising a metal tubing having a helical slot therein extending from one end for a number of turns for yieldably urging said outer races in opposite directions.
Claim 4
Dependent Claim
124 words
An X-ray generator comprising a sealed envelope, an anode structure supported for rotation within the envelope, and a fixed shank connecting the anode structure to the envelope, said anode structure comprising a rotatable shaft, a target mounted for rotation with said shaft, supporting means to which the target is fixed, and a head connecting said means to the shaft, a pair of bearings having inner and outer races and mounted by their inner races at spaced locations on the shaft, and spring means encircling the shaft and abutting respective outer races at each end, said spring means comprising a metal tubing having a helical slot therein extending from one end for a number of turns for yieldably urging said outer races in opposite directions.
Claim 5
Dependent Claim
155 words
An X-ray generator comprising a sealed envelope, an anode structure supported for rotation within the envelope, and a fixed shank connecting the anode structure to the envelope, said anode structure comprising a rotatable shaft, a target mounted for rotation with said shaft, supporting means to which the target is fixed, and a head connecting said means to the shaft, the head having a portion thereof which is small in cross-sectional area compared to said means whereby large amounts of heat are prevented from flowing from the means into the shaft, a pair of bearings having inner and outer races and mounted by their inner races at spaced locations on the shaft, and spring means encircling the shaft and abutting respective outer races at each end, said spring means comprising a metal tubing having a helical slot therein extending from one end for a number of turns for yieldably urging said outer races in opposite directions.
Claim 6
Dependent Claim
155 words
An X-ray generator comprising a sealed envelope, an anode structure supported for rotation within the envelope, and a fixed shank connecting the anode structure to the envelope, said anode structure comprising a rotatable shaft, a target mounted for rotation with said shaft, supporting means to which the target is fixed, and a head connecting said means to the shaft, the head having a portion thereof which is small in cross-sectional area compared to said means whereby large amounts of heat are prevented from flowing from the means into the shaft, a pair of bearings having inner and outer races and mounted by their inner races at spaced locations on the shaft, and spring means encircling the shaft and abutting respective outer races at each end, said spring means comprising a metal tubing having a helical slot therein extending from one end for a number of turns for yieldably urging said outer races in opposite directions.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |