US3283154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame detector system using an ultraviolet detector of the avalanche discharge type
Assignee: Electronics Corp of America
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Filing: 1963-02-21
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Granted: 1966-11-01
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Expires: 1983-02-21
Abstract
No abstract record available.
Inventors
- 👤 Giuffrida Philip
- 👤 Pratt John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:31
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/12; F; F23; F23N; F23N5/00; F23N5/02; F23N5/08; F23N5/082; G01; G01T; G01T7/00; G01T7/12; G01T7/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
CONDITION SENSING APPARATUS COMPRISING A CONDITION SENSOR OF THE AVALANCHE DISCHARGE TYPE HAVING A PAIR OF ELECTRODES MOUNTED IN SPACED RELATION WITHIN AN ENVELOPE TRANSPARENT TO RADIATION, A VOLTAGE STEP UP TRANSFORMER HAVING A PRIMARY WINDING ELEMENT AND A SECONDARY WINDING ELEMENT INDUCTIVELY COUPLED TOGETHER, SAID SECONDARY WINDING ELEMENT BEING CONNECTED IN SERIES WITH THE ELECTRODES OF SAID CONDITION SENSOR, A CAPACITIVE ELEMENT CONNECTED IN SERIES CIRCUIT WITH SAID PRIMARY WINDING ELEMENT TO SIMULATE A RESONANT CIRCUIT AT LINE FREQUENCY, MEANS TO CONNECT ALTERNATING CURRENT SUPPLY MEANS TO ENERGIZE SAID PRIMARY WINDING ELEMENT AND INDUCE A HIGH VOLTAGE SIGNAL IN SAID SECONDARY WINDING ELEMENT FOR APPLICATION TO SAID ELECTRODES TO ESTABLISH
Claim 2
Dependent Claim
111 words
CONDITION SENSING APPARATUS COMPRISING A CONDITION SENSOR OF THE AVALANCHE DISCHARGE TYPE HAVING A PAIR OF ELECTRODES MOUNTED IN SPACED RELATION WITHIN AN ENVELOPE TRANSPARENT TO RADIATION, A VOLTAGE STEP UP TRANSFORMER HAVING A PRIMARY WINDING ELEMENT AND A SECONDARY WINDING ELEMENT INDUCTIVELY COUPLED TOGETHER, SAID SECONDARY WINDING ELEMENT BEING CONNECTED IN SERIES WITH THE ELECTRODES OF SAID CONDITION SENSOR, A CAPACITIVE ELEMENT CONNECTED IN SERIES CIRCUIT WITH SAID PRIMARY WINDING ELEMENT TO SIMULATE A RESONANT CIRCUIT AT LINE FREQUENCY, MEANS TO CONNECT ALTERNATING CURRENT SUPPLY MEANS TO ENERGIZE SAID PRIMARY WINDING ELEMENT AND INDUCE A HIGH VOLTAGE SIGNAL IN SAID SECONDARY WINDING ELEMENT FOR APPLICATION TO SAID ELECTRODES TO ESTABLISH
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |