US3226615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitive probe and system for regulating gases
Assignee: Buell Engineering Co Inc
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Filing: 1962-06-19
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Granted: 1965-12-28
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Expires: 1982-06-19
Abstract
No abstract record available.
Inventors
- 👤 Lester L Nagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:50
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/66; B03C3/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A SENSING DEVICE FOR USE WITH AN ELECTROSTATIC PRECIPITATOR CONTROL SYSTEM, COMPRISING A CAPACITANCE PROBE WHICH IS ADAPTED TO BE INSERTED INTO A GAS-CONDUCTING DUCT TO SENSE CHANGES IN THE PROPERTIES AND CONDITION OF THE GAS BY VARIATIONS IN CAPACTIANCE OF THE PROBE, SAID PROBE COMPRISING A CONDUCTIVE SUPPORTING MEMBER FORMED FOR MOUNTING IN A DUCT WALL; AN INSULATING MEMBER EXTENDING THROUGH SAID SUPPORTING MEMBER; A SMALL CONDUCTIVE ROD EXTENDING THROUGH SAID INSULATING MEMBER AND ELECTRICALLY INSULATED THEREBY FROM SAID SUPPORTING MEMBER; CAPACITANCE MEANS INCLUDING FIRST AND SECOND ELECTRIC CONDENSER PLATES INSULATED AND SPACED FROM ONE ANOTHER ONE
Claim 2
Dependent Claim
98 words
A SENSING DEVICE FOR USE WITH AN ELECTROSTATIC PRECIPITATOR CONTROL SYSTEM, COMPRISING A CAPACITANCE PROBE WHICH IS ADAPTED TO BE INSERTED INTO A GAS-CONDUCTING DUCT TO SENSE CHANGES IN THE PROPERTIES AND CONDITION OF THE GAS BY VARIATIONS IN CAPACTIANCE OF THE PROBE, SAID PROBE COMPRISING A CONDUCTIVE SUPPORTING MEMBER FORMED FOR MOUNTING IN A DUCT WALL; AN INSULATING MEMBER EXTENDING THROUGH SAID SUPPORTING MEMBER; A SMALL CONDUCTIVE ROD EXTENDING THROUGH SAID INSULATING MEMBER AND ELECTRICALLY INSULATED THEREBY FROM SAID SUPPORTING MEMBER; CAPACITANCE MEANS INCLUDING FIRST AND SECOND ELECTRIC CONDENSER PLATES INSULATED AND SPACED FROM ONE ANOTHER ONE
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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) | 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 |