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US3214589A
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Protection system for rotating anode x-ray tubes including means for measuring the anode rotational speed
Assignee: Picker X Ray Corp
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Filing: 1962-11-21
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Granted: 1965-10-26
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Expires: 1982-11-21
Abstract
No abstract record available.
Inventors
- 👤 Walter E Teague
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:20
CPC Classifications
H; H05; H05G; H05G1/00; H05G1/08; H05G1/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN A PROTECTION SYSTEM FOR A ROTATING ANODE X-RAY TUBE WHICH INCLUDES A CATHODE FILAMENT, AN ANODE, MEANS FOR ROTATING THE ANODE, MEANS FOR ENERGIZING THE CATHODE FILAMENT TO CAUSE THE FILAMENT TO GLOW AND THEREBY EMIT RADIATION COMPRISING ELECTRONS AND LIGHT ENERGY AND MEANS FOR APPLYING PLATE VOLTAGE TO THE ANODE; MEANS DIRECTLY ROTATABLE WITH THE ANODE FOR CHOPPING THE LIGHT ENERGY RADIATION FROM THE CATHODE FILAMENT INTO BURSTS OF LIGHT ENERGY RADIATION OF A FREQUENCY PROPORTIONAL TO THE SPEED OF ROTATION OF THE ANODE, AND MEANS FOR SENSING THE BURSTS OF LIGHT ENERGY RADIATION TO MEASURE THE SPEED OF ANODE
Claim 2
Dependent Claim
102 words
IN A PROTECTION SYSTEM FOR A ROTATING ANODE X-RAY TUBE WHICH INCLUDES A CATHODE FILAMENT, AN ANODE, MEANS FOR ROTATING THE ANODE, MEANS FOR ENERGIZING THE CATHODE FILAMENT TO CAUSE THE FILAMENT TO GLOW AND THEREBY EMIT RADIATION COMPRISING ELECTRONS AND LIGHT ENERGY AND MEANS FOR APPLYING PLATE VOLTAGE TO THE ANODE; MEANS DIRECTLY ROTATABLE WITH THE ANODE FOR CHOPPING THE LIGHT ENERGY RADIATION FROM THE CATHODE FILAMENT INTO BURSTS OF LIGHT ENERGY RADIATION OF A FREQUENCY PROPORTIONAL TO THE SPEED OF ROTATION OF THE ANODE, AND MEANS FOR SENSING THE BURSTS OF LIGHT ENERGY RADIATION TO MEASURE THE SPEED OF ANODE
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |