US3109747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming silica
Assignee: General Electric Co
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Filing: 1961-11-02
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Granted: 1963-11-05
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Expires: 1981-11-02
Abstract
No abstract record available.
Inventors
- 👤 Alton G Foote
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:11
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; C; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/18; C01B33/181; C01B33/183
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
THE METHOD OF FORMING FINELY DIVIDED SILICA BY THE COMBUSTION OF A LIQUID ORGANO-SILICON COMPOUND REDUCIBLE BY BURNING TO SILICA, WHICH COMPRISES INTRODUCING THE COMPOUND UNDER PRESSURE ABOVE ATMOSPHERIC INTO A HEATED ZONE MAINTAINED AT A TEMPERATURE IN THE APPROXIMATE RANGE OF 180-220*C. AND WHEREIN THE SAID COMPOUND REMAINS A LIQUID, RELEASING A FLOW OF THE LIQUID COMPOUND TO A CONFINED HEATED PATH AT ATMOSPHERIC PRESSURE TO CAUSE IT TO BE IMMEDIATELY VAPORIZED AND MAINTAINED IN VAPOR FORM TO THE END OF THE PATH WHERE IT IS MIXED WITH OXYGEN AND IGNITED TO FORMA FUME INCLUDING FINELY DIVIDED SILICA AS ONE OF THE PRODUCTS OF COMBUSTION, AND COLLECTING THE SILICA ON A SURFACE EXPOSED TO THE FUME.
Claim 2
Independent Claim
117 words
THE METHOD OF FORMING FINELY DIVIDED SILICA BY THE COMBUSTION OF A LIQUID ORGANO-SILICON COMPOUND REDUCIBLE BY BURNING TO SILICA, WHICH COMPRISES INTRODUCING THE COMPOUND UNDER PRESSURE ABOVE ATMOSPHERIC INTO A HEATED ZONE MAINTAINED AT A TEMPERATURE IN THE APPROXIMATE RANGE OF 180-220*C. AND WHEREIN THE SAID COMPOUND REMAINS A LIQUID, RELEASING A FLOW OF THE LIQUID COMPOUND TO A CONFINED HEATED PATH AT ATMOSPHERIC PRESSURE TO CAUSE IT TO BE IMMEDIATELY VAPORIZED AND MAINTAINED IN VAPOR FORM TO THE END OF THE PATH WHERE IT IS MIXED WITH OXYGEN AND IGNITED TO FORMA FUME INCLUDING FINELY DIVIDED SILICA AS ONE OF THE PRODUCTS OF COMBUSTION, AND COLLECTING THE SILICA ON A SURFACE EXPOSED TO THE FUME.
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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |