US3094618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray tube protection mechanism
Assignee: Picker X Ray Corp
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Filing: 1961-05-23
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Granted: 1963-06-18
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Expires: 1981-05-23
Abstract
No abstract record available.
Inventors
- 👤 William R Mclaughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:47
CPC Classifications
H; H05; H05G; H05G1/00; H05G1/08; H05G1/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A MECHANISM FOR PROTECTING THE ANODE OF A ROTATING ANODE TYPE X-RAY TUBE BY DETECTING ROTATIONAL SPEED OF THE ANODE COMPRISING, FIRST AND SECOND PARALLEL CONNECTED FIELD WINDINGS CONNECTED TO AN A.C. SOURCE FOR INDUCING THE ROTATION OF THE ANODE, A CAPACITOR IN SERIES WITH THE FIRST WINDING TO MAINTAIN THE TWO WINDINGS IN AN OUT-OF-PHASE RELATIONSHIP, WATTAGE RESPONSIVE MEANS CONNECTED TO THE WINDINGS AND RESPONSIVE TO WATTAGE INDUCED BY THE VOLTAGE OF ONE WINDING AND THE AMPERAGE OF THE OTHER WINDING, AN X-RAY EXPOSURE CIRCUIT, AND SWITCH MEANS CONNECTED TO THE X-RAY EXPOSURE CIRCUIT AND CONTROLLED BY THE WATTAGE RESPONSIVE MEANS FOR CLOSING THE X-RAY EXPOSURE CIRCUIT WHEN THE WATTAGE IS ABOVE A PREDETERMINED MINIMUM LEVEL INDICATING A PREDETERMINED ANODE ROTATIONAL SPEED.
Claim 2
Dependent Claim
123 words
A MECHANISM FOR PROTECTING THE ANODE OF A ROTATING ANODE TYPE X-RAY TUBE BY DETECTING ROTATIONAL SPEED OF THE ANODE COMPRISING, FIRST AND SECOND PARALLEL CONNECTED FIELD WINDINGS CONNECTED TO AN A.C. SOURCE FOR INDUCING THE ROTATION OF THE ANODE, A CAPACITOR IN SERIES WITH THE FIRST WINDING TO MAINTAIN THE TWO WINDINGS IN AN OUT-OF-PHASE RELATIONSHIP, WATTAGE RESPONSIVE MEANS CONNECTED TO THE WINDINGS AND RESPONSIVE TO WATTAGE INDUCED BY THE VOLTAGE OF ONE WINDING AND THE AMPERAGE OF THE OTHER WINDING, AN X-RAY EXPOSURE CIRCUIT, AND SWITCH MEANS CONNECTED TO THE X-RAY EXPOSURE CIRCUIT AND CONTROLLED BY THE WATTAGE RESPONSIVE MEANS FOR CLOSING THE X-RAY EXPOSURE CIRCUIT WHEN THE WATTAGE IS ABOVE A PREDETERMINED MINIMUM LEVEL INDICATING A PREDETERMINED ANODE ROTATIONAL SPEED.
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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |