US3226542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mass spectrometer arc-type ion source having electrode cooling means
Assignee: Associated Electrical Industries Ltd
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Filing: 1962-12-10
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Granted: 1965-12-28
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Expires: 1982-12-10
Abstract
No abstract record available.
Inventors
- 👤 Craig Robert Derek
- 👤 Green Brian Noel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:02
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/02; H01J49/10; H01J49/12; H01J49/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
A MASS SPECTROMETER ION SOURCE COMPRISING AN EVACUATED CHAMBER, TWO ELECTRICALLY INSULATING SUPPORTS EXTENDING WITHIN SAID CHAMBER AND SUPPORTING RESPECTIVELY TWO ELECTRODES, AT LEAST ONE OF WHICH IS OF THE MATERIAL TO BE ANALYZED, SO THAT SURFACES OF THE ELECTRODES ARE LOCATED ADJACENT TO EACH OTHER AND AN ELECTRICAL DISCHARGE MAY BE PRODUCED BETWEEN SAID TWO ELECTRODES, A FLASK SUPPORTED BY SAID CHAMBER EXTENDING WITHIN THE CHAMBER AND INSULATED THEREFROM, A COOLANT FLUID IN THE BOTTOM OF SAID FLASK, AND HEAT CONDUCTING STRIP MATERIAL INTERCONNECTING THE LOWER END OF SAID FLASK WITH AT LEAST ONE OF SAID ELECTRODES FOR CONDUCTING HEAT FROM SAID ELECTRODE TO THE FLASK OF THE COOLANT WITHIN THE FLASK.
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) | 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 |