Patent US3119931A successfully refreshed from Google Patents.
US3119931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit means for coupling an x-ray device to a control supply apparatus
Assignee: US Philips Corp
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Filing: 1961-05-15
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Granted: 1964-01-28
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Expires: 1981-05-15
Abstract
No abstract record available.
Inventors
- 👤 Fransen Jacobus
- 👤 Bussing Gerardus Adrianus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:10
CPC Classifications
H; H05; H05G; H05G1/00; H05G1/08; H05G1/26; H05G1/30; H05G1/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
AN X-RAY DEVICE COMPRISING AN X-RAY TUBE DISPOSED AT A FIRST PREDETERMINED LOCATION AND INCLUDING A FILAMENT CATHODE AND A CONTROL ELECTRODE, A SOURCE OF TWO CONTROL SIGNALS HAVING RELATIVELY DIFFERENT FIRST AND SECOND FREQUENCIES, RESPECTIVELY, DISPOSED AT A SECOND PREDETERMINED LOCATION, SAID FIRST AND SECOND FREQUENCY SIGNALS BEING ADAPTED FOR THE CONTROL, RESPECTIVELY, OF SAID CONTROL ELECTRODE AND SAID CATHODE, CIRCUIT CONNECTION MEANS TO COUPLE SAID SOURCE TO SAID CONTROL ELECTRODE AND SAID FILAMENT CATHODE COMPRISING A PAIR OF CONDUCTORS HAVING AN INPUT MEANS COUPLED TO SAID SOURCE AND OUTPUT MEANS, FIRST AND SECOND FREQUENCY RESPONSIVE MEANS DISPOSED AT SAID FIRST LOCATION AND COUPLED TO SAID OUTPUT MEANS, SAID FIRST FREQUENCY RESPONSIVE MEANS BEING RESPONSIVE TO A SIGNAL OF SAID SOURCE HAVING SAID FIRST FREQUENCY TO PROVIDE A FIRST OUTPUT SIGNAL TO CONTROL SAID CONTROL ELECTRODE, AND SAID SECOND FREQUENCY RESPONSIVE MEANS BEING RESPONSIVE TO A SIGNAL OF SAID SOURCE HAVING SAID SECOND FREQUENCY TO PROVIDE A SECOND OUTPUT SIGNAL TO CONTROL SAID FILAMENT CATHODE.
Claim 2
Dependent Claim
166 words
AN X-RAY DEVICE COMPRISING AN X-RAY TUBE DISPOSED AT A FIRST PREDETERMINED LOCATION AND INCLUDING A FILAMENT CATHODE AND A CONTROL ELECTRODE, A SOURCE OF TWO CONTROL SIGNALS HAVING RELATIVELY DIFFERENT FIRST AND SECOND FREQUENCIES, RESPECTIVELY, DISPOSED AT A SECOND PREDETERMINED LOCATION, SAID FIRST AND SECOND FREQUENCY SIGNALS BEING ADAPTED FOR THE CONTROL, RESPECTIVELY, OF SAID CONTROL ELECTRODE AND SAID CATHODE, CIRCUIT CONNECTION MEANS TO COUPLE SAID SOURCE TO SAID CONTROL ELECTRODE AND SAID FILAMENT CATHODE COMPRISING A PAIR OF CONDUCTORS HAVING AN INPUT MEANS COUPLED TO SAID SOURCE AND OUTPUT MEANS, FIRST AND SECOND FREQUENCY RESPONSIVE MEANS DISPOSED AT SAID FIRST LOCATION AND COUPLED TO SAID OUTPUT MEANS, SAID FIRST FREQUENCY RESPONSIVE MEANS BEING RESPONSIVE TO A SIGNAL OF SAID SOURCE HAVING SAID FIRST FREQUENCY TO PROVIDE A FIRST OUTPUT SIGNAL TO CONTROL SAID CONTROL ELECTRODE, AND SAID SECOND FREQUENCY RESPONSIVE MEANS BEING RESPONSIVE TO A SIGNAL OF SAID SOURCE HAVING SAID SECOND FREQUENCY TO PROVIDE A SECOND OUTPUT SIGNAL TO CONTROL SAID FILAMENT CATHODE.
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) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |