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US3211996A
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Apparatus for detecting electronegative gases in a mixture of gases
Assignee: Westinghouse Electric Corp
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Filing: 1960-12-05
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Granted: 1965-10-12
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Expires: 1980-12-05
Abstract
No abstract record available.
Inventors
- 👤 Russell E Fox
- 👤 Arthur V Phelps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:10
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/62; G01N27/622; H; H01; H01H; H01H33/00; H01H33/02; H01H33/53; H01H33/56; H01H2033/567
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
APPARATUS FOR DETECTING ELECTRONEGATIVE GASES IN A GAS MIXTURE, COMPRISING: A PAIR OF SPACED ELECTRODES DISPOSED IN SAID MIXTURE; MEANS FOR PRODUCING PULSES OF FREE ELECTRONS AT ONE OF SAID ELECTRODE; MEANS CONNECTING SAID ELECTRODES IN ELECTRIC CIRCUIT TO PROVIDE A VOLTAGE DIFFERENTIAL BETWEEN THE ELECTRODES TO EFFECT TRANSIT OF SAID ELECTRONS ACROSS THE SPACE BETWEEN SAID ELECTRODES TO THE OTHER OF SAID ELECTRODES AT PREDETERMINED ENERGY SUITABLE FOR ATTACHMENT OF SAID ELECTRONS TO THE ELECTRONEGATIVE GAS IN SAID MIXTURE TO FORM NEGATIVE IONS OF SAID ELECTRONEGATIVE GAS; PHASE DIFFERENTIAL DETECTING MEANS FOR DETECTING DIFFERENCE IN PHASE BETWEEN THE PRODUCTION OF ELECTRON PULSE AT SAID ONE OF SAID ELECTRODES AND THE RECEPTION OF ION PULSE AT THE OTHER OF SAID ELECTRODES, AND ADJUSTABLE PHASE SHIFTING MEANS COOPERATING WITH THE DETECTING MEANS TO DISTINGUISH BETWEEN TWO ELECTRONEGATIVE GASES IN THE GAS MIXTURE.
Claim 2
Dependent Claim
141 words
APPARATUS FOR DETECTING ELECTRONEGATIVE GASES IN A GAS MIXTURE, COMPRISING: A PAIR OF SPACED ELECTRODES DISPOSED IN SAID MIXTURE; MEANS FOR PRODUCING PULSES OF FREE ELECTRONS AT ONE OF SAID ELECTRODE; MEANS CONNECTING SAID ELECTRODES IN ELECTRIC CIRCUIT TO PROVIDE A VOLTAGE DIFFERENTIAL BETWEEN THE ELECTRODES TO EFFECT TRANSIT OF SAID ELECTRONS ACROSS THE SPACE BETWEEN SAID ELECTRODES TO THE OTHER OF SAID ELECTRODES AT PREDETERMINED ENERGY SUITABLE FOR ATTACHMENT OF SAID ELECTRONS TO THE ELECTRONEGATIVE GAS IN SAID MIXTURE TO FORM NEGATIVE IONS OF SAID ELECTRONEGATIVE GAS; PHASE DIFFERENTIAL DETECTING MEANS FOR DETECTING DIFFERENCE IN PHASE BETWEEN THE PRODUCTION OF ELECTRON PULSE AT SAID ONE OF SAID ELECTRODES AND THE RECEPTION OF ION PULSE AT THE OTHER OF SAID ELECTRODES, AND ADJUSTABLE PHASE SHIFTING MEANS COOPERATING WITH THE DETECTING MEANS TO DISTINGUISH BETWEEN TWO ELECTRONEGATIVE GASES IN THE GAS MIXTURE.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |