Patent US1972374A successfully refreshed from Google Patents.
Patent US3418513A successfully refreshed from Google Patents.
US3418513A
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US
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Mass spectrometer ion source with cooling means
Assignee: Associated Electrical Industries Ltd
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Filing: 1964-10-26
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Granted: 1968-12-24
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Expires: 1984-10-26
Abstract
No abstract record available.
Inventors
- 👤 Elliott Richard Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:46
CPC Classifications
H; H01; H01J; H01J27/00; H01J27/02; H01J27/20; H01J27/022; H01J49/00; H01J49/02; H01J49/10; H01J49/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A MASS SPECTROMETER ION SOURCE INCLUDING A METAL HOUSING DEFINING A CHAMBER, ENTRY MEANS FOR ADMISSION OF VAPORIZED SAMPLE MATERIAL TO THE CHAMBER, AN ELECTRON BEAM GENERATOR IS THE CHAMBER FOR IONIZING MOLECULES OF VAPORIZED SAMPLE MATERIAL THEREIN, SAID GENERATOR TENDING IN USE TO CAUSE HEATING OF THE HOUSING TO A TEMPERATURE ABOVE THE VAPORIZATION TEMPERATURE OF SAID SAMPLE MATERIAL, SAID HOUSING ALSO HAVING AT LEAST ONE EXIT FOR IONS GENERATED THEREIN, AND MEANS FOR PREVENTING THERMAL CHANGE IN THE MOLECULES DUE TO COLLISION WITH A HEATED INTERNAL SURFACE OF THE HOUSING PRIOR TO IONIZATION, SAID MEANS COMPRISING MEANS FOR COOLING THE METAL HOUSING TO A TEMPERATURE
Claim 2
Dependent Claim
107 words
A MASS SPECTROMETER ION SOURCE INCLUDING A METAL HOUSING DEFINING A CHAMBER, ENTRY MEANS FOR ADMISSION OF VAPORIZED SAMPLE MATERIAL TO THE CHAMBER, AN ELECTRON BEAM GENERATOR IS THE CHAMBER FOR IONIZING MOLECULES OF VAPORIZED SAMPLE MATERIAL THEREIN, SAID GENERATOR TENDING IN USE TO CAUSE HEATING OF THE HOUSING TO A TEMPERATURE ABOVE THE VAPORIZATION TEMPERATURE OF SAID SAMPLE MATERIAL, SAID HOUSING ALSO HAVING AT LEAST ONE EXIT FOR IONS GENERATED THEREIN, AND MEANS FOR PREVENTING THERMAL CHANGE IN THE MOLECULES DUE TO COLLISION WITH A HEATED INTERNAL SURFACE OF THE HOUSING PRIOR TO IONIZATION, SAID MEANS COMPRISING MEANS FOR COOLING THE METAL HOUSING TO A TEMPERATURE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |