Patent US3286093A successfully refreshed from Google Patents.
US3286093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame detector system using a lightly loaded glow discharge detector tube
Assignee: Combustion Engineering Inc
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Filing: 1966-07-22
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Granted: 1966-11-15
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Expires: 1986-07-22
Abstract
No abstract record available.
Inventors
- 👤 Lyman F Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:43
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/08; F23N5/082; F23N2229/00; F23N2229/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A FLAME DETECTOR COMPRISING IN COMBINATION A SOURCE OF POTENTIAL, A GLOW DISCHARGE SENSING TUBE CONNECTED TO THE SOUCE OF POTENTIAL AND HAVING IN SERIES THEREWITH AN INTEGRATING NETWORK AND A LOAD IMPEDANCE ACROSS THE LATTER OF WHICH AN OUTPUT SPIKE SIGNAL IS DEVELOPED INCIDENT TO AVALANCHE OCCURRING IN SAID TUBE, A RECEIVER HAVING AN INPUT AND AN OUTPUT AND INCLUDING A SOURCE OF POTENTIAL, A SILICON CONTROLLED RECTIFIER HAVING ITS ANODE AND CATHODE ACROSS SAID SOURCE, A LOAD CONTROLLED BY SAID SILICON CONTROLLED RECTIFIER, MEANS PROVIDING A HIGH IMPEDANCE TO SAID SOURCE OF POTENTIAL CONNECTED TO THE SENSING TUBE AND A LOW IMPEDANCE TO THE SPIKE SIGNAL CAPACITIVELY COUPLING SAID OUTPUT SPIKE SIGNAL INTO THE INPUT OF THE RECEIVER WITH THE SILICON CONTROLLED RECTIFIER BEING GATED ON IN RESPONSE TO SUCH COUPLING OF SAID SIGNAL.
Claim 2
Dependent Claim
136 words
A FLAME DETECTOR COMPRISING IN COMBINATION A SOURCE OF POTENTIAL, A GLOW DISCHARGE SENSING TUBE CONNECTED TO THE SOUCE OF POTENTIAL AND HAVING IN SERIES THEREWITH AN INTEGRATING NETWORK AND A LOAD IMPEDANCE ACROSS THE LATTER OF WHICH AN OUTPUT SPIKE SIGNAL IS DEVELOPED INCIDENT TO AVALANCHE OCCURRING IN SAID TUBE, A RECEIVER HAVING AN INPUT AND AN OUTPUT AND INCLUDING A SOURCE OF POTENTIAL, A SILICON CONTROLLED RECTIFIER HAVING ITS ANODE AND CATHODE ACROSS SAID SOURCE, A LOAD CONTROLLED BY SAID SILICON CONTROLLED RECTIFIER, MEANS PROVIDING A HIGH IMPEDANCE TO SAID SOURCE OF POTENTIAL CONNECTED TO THE SENSING TUBE AND A LOW IMPEDANCE TO THE SPIKE SIGNAL CAPACITIVELY COUPLING SAID OUTPUT SPIKE SIGNAL INTO THE INPUT OF THE RECEIVER WITH THE SILICON CONTROLLED RECTIFIER BEING GATED ON IN RESPONSE TO SUCH COUPLING OF SAID SIGNAL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |