US3186930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the production of ozone
Assignee: Union Carbide Corp
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Filing: 1961-09-19
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Granted: 1965-06-01
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Expires: 1981-09-19
Abstract
No abstract record available.
Inventors
- 👤 Gerhard A Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:40
CPC Classifications
C; C01; C01B; C01B13/00; C01B13/10; C01B13/11; C01B2201/00; C01B2201/60; C01B2201/66; C01B2201/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
AN IMPROVED METHOD FOR THE PRODUCTION OF OZONE IN SILENT ELECTRIC DISCHARGE OZONIZERS HAVING DISCHARGE SURFACES THEREIN COMPRISING PROVIDING AN OXYGEN-CONTAINING GAS CONTAINING LESS THAN ABOUT 5% NITROGEN; INTRODUCING INTO THE OXYGEN-CONTAINING GAS AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF SULFUR HEXAFLUORIDE, FLUORINATED ALIPHATIC ACIDS AND FLUORINATED ALIPHATIC ANHYDRIDES IN AN AMOUNT LESS THAN ABOUT 100 PARTS PER MILLION, SAID SELECTED COMPOUND ESSENTIALLY HAVING A VAPOR PRESSURE OF AT LEAST 0.001 MM. OF MERCURY AT AMIBIENT TEMPERATURE; PASSING SAID OXYGEN-CONTAINING GAS AND SAID SELECTED COMPOUND THROUGH THE SILENT ELECTRIC DISCHARGE OF THE OZONIZER TO PRODUCE OZONE AND TO ACTIVATE SAID DISCHARGE SURFACES IN THE PRESENCE OF SAID SILENT ELECTRIC DISCHARGE; AND MAINTAINING THE DEW POINT OF SAID OXYGENCONTAINING GAS AT LESS THAN ABOUT -40*C. DURING PASSAGE THROUGH SAID SILENT ELECTRIC DISCHARGE.
Claim 2
Dependent Claim
134 words
AN IMPROVED METHOD FOR THE PRODUCTION OF OZONE IN SILENT ELECTRIC DISCHARGE OZONIZERS HAVING DISCHARGE SURFACES THEREIN COMPRISING PROVIDING AN OXYGEN-CONTAINING GAS CONTAINING LESS THAN ABOUT 5% NITROGEN; INTRODUCING INTO THE OXYGEN-CONTAINING GAS AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF SULFUR HEXAFLUORIDE, FLUORINATED ALIPHATIC ACIDS AND FLUORINATED ALIPHATIC ANHYDRIDES IN AN AMOUNT LESS THAN ABOUT 100 PARTS PER MILLION, SAID SELECTED COMPOUND ESSENTIALLY HAVING A VAPOR PRESSURE OF AT LEAST 0.001 MM. OF MERCURY AT AMIBIENT TEMPERATURE; PASSING SAID OXYGEN-CONTAINING GAS AND SAID SELECTED COMPOUND THROUGH THE SILENT ELECTRIC DISCHARGE OF THE OZONIZER TO PRODUCE OZONE AND TO ACTIVATE SAID DISCHARGE SURFACES IN THE PRESENCE OF SAID SILENT ELECTRIC DISCHARGE; AND MAINTAINING THE DEW POINT OF SAID OXYGENCONTAINING GAS AT LESS THAN ABOUT -40*C. DURING PASSAGE THROUGH SAID SILENT ELECTRIC DISCHARGE.
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) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |