Patent US3313353A successfully refreshed from Google Patents.
US3313353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nozzle and method of extinguishing fires
Assignee: Chemetron Fire Systems Inc
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Filing: 1964-05-15
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Granted: 1967-04-11
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Expires: 1984-05-15
Abstract
No abstract record available.
Inventors
- 👤 Hilding V Williamson
- 👤 Eduard J Job
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:42
CPC Classifications
A; A62; A62C; A62C31/00; B; B05; B05B; B05B1/00; B05B1/28
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
78 words
METHOD OF EXTINGUISHING FIRES WITH CARBON DIOXIDE GAS, COMPRISING THE STEPS OF: PASSING CARBON DIOXIDE GAS THROUGH ORIFICE MEANS AT A PREDETERMINED VELOCITY, DIRECTING THE GAS AT A LESSER VELOCITY INTO A PATTER RESEMBLING GENERALLY A HOLLOW CONICAL CURTAIN HAVING A CONE ANGLE OF NOT LESS THAN ABOUT 110 DEGREES AT ITS ORIGIN TO CREATE A SUFFICIENT DIOXIDE CONCENTRATION WITHIN THE CURTAIN TO EXTINGUISH FIRES, WITH THE CARBON DIOXIDE CURTAIN BEING DIRECTED TOWARD A FIRE TO BE EXTINGUISHED.
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) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |