US3354931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon dioxide detecting safety device for apparatus operating through catalysis of gaseous hydrocarbons
Assignee: Lyonnaise des Applications Catalytiques Ste
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Filing: 1963-12-31
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Granted: 1967-11-28
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Expires: 1983-12-31
Abstract
No abstract record available.
Inventors
- 👤 Risse Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:00
CPC Classifications
F; F17; F17D; F17D5/00; F17D5/005; F23; F23D; F23D14/00; F23D14/02; F23D14/04; F23D14/46; F23D14/72; F23N; F23N5/00; F23N5/003; G; G01; G01N; G01N25/00; G01N25/20; G01N25/22; G01N25/28; G06; G06V; G06V30/00; G06V30/10; G06V30/14; G06V30/1444; Y; Y02; Y02E; Y02E20/00; Y02E20/32; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
THE COMBINATION COMPRISING A MAIN BURNER; A CATALYTIC FLAMELESS DETECTOR BURNER LOCATED TO BE OXYGENATED FROM THE AIR AMBIENT TO THE MAIN BURNER; A GASEOUS FUEL SUPPLY MEANS; A MANUALLY CONTROLLED CONDUIT MEANS FORMING A FIRST CONNECTION BETWEEN SAID SUPPLY MEANS, THE MAIN BURNER AND THE DETECTOR BURNER; AND A THERMOSTATICALLY CONTROLLED BY-PASS CONDUIT MEANS FORMING A SECOND CONNECTION BETWEEN SAID SUPLY MEANS AND SAID MAIN BURNER AND HAVING A THERAL SENSING ELEMENT SENSING THE ACTIVITY OF SAID DETECTOR BURNER AND OPERATIVE TO SHUT OFF FLOW THROUGH SAID SECOND CONNECTION WHEN THE ACTIVITY IS LOW DUE TO AN INTOLERABLE HIGH CONTENT OF INERT GAS IN THE AMBIENT AIR.
Claim 2
Dependent Claim
108 words
THE COMBINATION COMPRISING A MAIN BURNER; A CATALYTIC FLAMELESS DETECTOR BURNER LOCATED TO BE OXYGENATED FROM THE AIR AMBIENT TO THE MAIN BURNER; A GASEOUS FUEL SUPPLY MEANS; A MANUALLY CONTROLLED CONDUIT MEANS FORMING A FIRST CONNECTION BETWEEN SAID SUPPLY MEANS, THE MAIN BURNER AND THE DETECTOR BURNER; AND A THERMOSTATICALLY CONTROLLED BY-PASS CONDUIT MEANS FORMING A SECOND CONNECTION BETWEEN SAID SUPLY MEANS AND SAID MAIN BURNER AND HAVING A THERAL SENSING ELEMENT SENSING THE ACTIVITY OF SAID DETECTOR BURNER AND OPERATIVE TO SHUT OFF FLOW THROUGH SAID SECOND CONNECTION WHEN THE ACTIVITY IS LOW DUE TO AN INTOLERABLE HIGH CONTENT OF INERT GAS IN THE AMBIENT AIR.
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) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |