Patent US3226598A successfully refreshed from Google Patents.
US3226598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Source of ions for use in synchro-cyclotrons
Assignee: US Philips Corp
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Filing: 1961-07-03
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Granted: 1965-12-28
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Expires: 1981-07-03
Abstract
No abstract record available.
Inventors
- 👤 Gerardus M B Van Nimwegen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:28
CPC Classifications
H; H05; H05H; H05H13/00; H05H13/04; H01; H01J; H01J13/00; H01J13/02; H01J13/04; H01J27/00; H01J27/02; H01J27/16; H01J27/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A SYNCHRO-CYCLOTRON COMPRISING A METAL CHAMBER, MEANS TO INTRODUCE AN IONIZABLE MEDIUM INTO SAID CHAMBER, A PAIR OF D-SHAPED ELECTRODES LOCATED ON OPPOSITE SIDES OF A GIVEN AXIS, AN ELECTRODE ON SAID GIVEN AXIS WITHIN AND ELECTRICALLY INSULATED FROM SAID CHAMBER, MEANS TO APPLY A NEGATIVE POTENTIAL TO SAID ELECTRODE RELATIVE TO THE CHAMBER, AND A SPOUT CONNECTED WITH SAID CHAMBER EXTENDING BETWEEN THE D-SHAPED ELECTRODES, SAID SPOUT HAVING A BORE THEREIN COAXIAL WITH SAID GIVEN AXIS AND EXTENDING PARALLEL TO A MAGNETIC FIELD CONSTITUTING A CHANNEL FOR THE DISCHARGE OF THE IONIZABLE MEDIUM IN THE CHAMBER, SAID BORE OPENING INTO AN APERTURE CONSTITUTING AN ANODE FOR IONS AND ELECTRONS MOVING HELICALLY AROUND THE MAGNETIC LINES OF FORCE EMANATING FROM THE SPOUT AND ENTERING A HIGH-FREQUENCY FIELD BETWEEN THE
Claim 2
Dependent Claim
129 words
A SYNCHRO-CYCLOTRON COMPRISING A METAL CHAMBER, MEANS TO INTRODUCE AN IONIZABLE MEDIUM INTO SAID CHAMBER, A PAIR OF D-SHAPED ELECTRODES LOCATED ON OPPOSITE SIDES OF A GIVEN AXIS, AN ELECTRODE ON SAID GIVEN AXIS WITHIN AND ELECTRICALLY INSULATED FROM SAID CHAMBER, MEANS TO APPLY A NEGATIVE POTENTIAL TO SAID ELECTRODE RELATIVE TO THE CHAMBER, AND A SPOUT CONNECTED WITH SAID CHAMBER EXTENDING BETWEEN THE D-SHAPED ELECTRODES, SAID SPOUT HAVING A BORE THEREIN COAXIAL WITH SAID GIVEN AXIS AND EXTENDING PARALLEL TO A MAGNETIC FIELD CONSTITUTING A CHANNEL FOR THE DISCHARGE OF THE IONIZABLE MEDIUM IN THE CHAMBER, SAID BORE OPENING INTO AN APERTURE CONSTITUTING AN ANODE FOR IONS AND ELECTRONS MOVING HELICALLY AROUND THE MAGNETIC LINES OF FORCE EMANATING FROM THE SPOUT AND ENTERING A HIGH-FREQUENCY FIELD BETWEEN THE
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |