US3331978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam x-ray generator with movable, fluid-cooled target
Assignee: Varian Medical Systems Inc
•
Filing: 1962-05-28
•
Granted: 1967-07-18
•
Expires: 1982-05-28
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Brown
- 👤 Phillip T Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:20
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
AN X-RAY APPARATUS COMPRISING: ACCELERATOR MEANS FOR ACCELERATING A CHARGED PARTICLE BEAM WITHIN A VACUUM VESSEL, AND A TARGET ASSEMBLY INTERCEPTING SAID CHARGED PARTICLE BEAM TO FORM X-RAYS, SAID TARGET ASSEMBLY COMPRISING A MOVABLE TARGET CARRIED FROM A MOVABLE SHAFT WITH SAID TARGET INTERCEPTING SAID BEAM, SAID SHAFT PROTRUDING THROUGH AN APERTURE FORMED IN A WALL OF SAID VACUUM VESSEL THEREBY BEING MOVABLE RELATIVE TO SAID ACCELERATOR MEANS, AND A BELLOWS SEALED IN VACUUM TIGHT RELATION BETWEEN SAID APERTURE AND SAID SHAFT WHEREBY SAID SHAFT IS ALLOWED TO MOVE RELATIVE TO SAID WALL, AND MEANS FOR GUIDING A COOLING FLUID THROUGH SAID SHAFT TO COOL SAID TARGET AND FOR RETURNING SAID FLUID.
Claim 2
Dependent Claim
112 words
AN X-RAY APPARATUS COMPRISING: ACCELERATOR MEANS FOR ACCELERATING A CHARGED PARTICLE BEAM WITHIN A VACUUM VESSEL, AND A TARGET ASSEMBLY INTERCEPTING SAID CHARGED PARTICLE BEAM TO FORM X-RAYS, SAID TARGET ASSEMBLY COMPRISING A MOVABLE TARGET CARRIED FROM A MOVABLE SHAFT WITH SAID TARGET INTERCEPTING SAID BEAM, SAID SHAFT PROTRUDING THROUGH AN APERTURE FORMED IN A WALL OF SAID VACUUM VESSEL THEREBY BEING MOVABLE RELATIVE TO SAID ACCELERATOR MEANS, AND A BELLOWS SEALED IN VACUUM TIGHT RELATION BETWEEN SAID APERTURE AND SAID SHAFT WHEREBY SAID SHAFT IS ALLOWED TO MOVE RELATIVE TO SAID WALL, AND MEANS FOR GUIDING A COOLING FLUID THROUGH SAID SHAFT TO COOL SAID TARGET AND FOR RETURNING SAID FLUID.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |