Patent US3280325A successfully refreshed from Google Patents.
US3280325A
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Mass filter with particular circuit means connected to the electrodes for establishing the ion deflecting field
Assignee: ATLAS MESS und ANALYSENTECHNIK
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Filing: 1963-12-06
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Granted: 1966-10-18
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Expires: 1983-12-06
Abstract
No abstract record available.
Inventors
- 👤 Brunnee Curt
- 👤 Delgmann Lothar
- 👤 Kronenberger Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:16
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/26; H01J49/34; H01J49/42; H01J49/4205; H01J49/421
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
APPARATUS FOR SEPARATING IONS OF DIFFERENT MASSES COMPRISING, MASS FILTER HAVING ELECTRODE MEANS FOR ESTABLISHING AN ELECTRIC ION DEFLECTING FIELD AND AN ION SOURCE AND AN ION DETECTOR POSITIONED AT OPPOSITE ENDS OF SAID ELECTRODE MEANS, A SOURCE OF AND ALTERNATING VOLTAGE OF VARYING AMPLITUDE V, MEANS APPLYING SAID ALTERNATING VOLTAGE TO SAID ELECTRODE MEANS FOR ESTABLISHING A FIRST COMPONENT OF SAID ELECTRIC ION DEFLECTING FIELD, NONLINEAR CIRCUIT MEANS RESPONSIVE TO SAID ALTERNATING VOLTAGE VARYING AMPLITUDE V FOR PROVIDING A DIRECT VOLTAGE U THAT IS A NONLINEAR FUNCTION OF SAID VARYING AMPLITUDE V FOR ESTABLISHING THE RESOLUTION OF SAID MASS FILTER SUBSTANTIALLY INDEPENDENT OF SAID VARYING AMPLITUDE V, AND MEANS APPLYING SAID DIRECT VOLTAGE U TO SAID ELECTRODE MEANS FOR ESTABLISHING A SECOND COMPONENT OF SAID ELECTRIC ION DEFLECTING FIELD WHEREBY THE RESOLUTION OF MASS FILTER IS SUBSTANTIALLY INDEPENDENT OF THE MAGNITUDE OF SAID ELECTRIC ION DEFLECTING FIELD,
Claim 2
Dependent Claim
148 words
APPARATUS FOR SEPARATING IONS OF DIFFERENT MASSES COMPRISING, MASS FILTER HAVING ELECTRODE MEANS FOR ESTABLISHING AN ELECTRIC ION DEFLECTING FIELD AND AN ION SOURCE AND AN ION DETECTOR POSITIONED AT OPPOSITE ENDS OF SAID ELECTRODE MEANS, A SOURCE OF AND ALTERNATING VOLTAGE OF VARYING AMPLITUDE V, MEANS APPLYING SAID ALTERNATING VOLTAGE TO SAID ELECTRODE MEANS FOR ESTABLISHING A FIRST COMPONENT OF SAID ELECTRIC ION DEFLECTING FIELD, NONLINEAR CIRCUIT MEANS RESPONSIVE TO SAID ALTERNATING VOLTAGE VARYING AMPLITUDE V FOR PROVIDING A DIRECT VOLTAGE U THAT IS A NONLINEAR FUNCTION OF SAID VARYING AMPLITUDE V FOR ESTABLISHING THE RESOLUTION OF SAID MASS FILTER SUBSTANTIALLY INDEPENDENT OF SAID VARYING AMPLITUDE V, AND MEANS APPLYING SAID DIRECT VOLTAGE U TO SAID ELECTRODE MEANS FOR ESTABLISHING A SECOND COMPONENT OF SAID ELECTRIC ION DEFLECTING FIELD WHEREBY THE RESOLUTION OF MASS FILTER IS SUBSTANTIALLY INDEPENDENT OF THE MAGNITUDE OF SAID ELECTRIC ION DEFLECTING FIELD,
References Cited (Backward Citations)
US2939952A
Cited
US2950389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |