Patent US3101773A successfully refreshed from Google Patents.
US3101773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air preheating burner
Assignee: Selas Corp of America
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Filing: 1960-03-22
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Granted: 1963-08-27
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Expires: 1980-03-22
Abstract
No abstract record available.
Inventors
- 👤 Blaha Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:32
CPC Classifications
F; F23; F23L; F23L15/00; F23L15/04; F23D; F23D14/00; F23D14/20; Y; Y02; Y02E; Y02E20/00; Y02E20/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
IN A BURNER, A HOLLOW CYLINDRICAL BODY, A CYLINDRICAL STRUCTURE IN AN EXTENDING ALMOST ALL THE WAY THROUGH SAID BODY AND SPACED THEREFROM TO FORM AN ANNULAR PASSAGE, A HOLLOW CYLINDRICAL MEMBER ATTACHED TO ONE END OF SAID BODY AND HAVING AN AXIALLY EXTENDING CENTRAL PASSAGEWAY THERETHROUGH, SAID STRUCTURE, BODY AND MEMBER BEING SO SHAPED THAT ONE END OF SAID ANNULAR PASSAGE COMMUNICATES WITH THE CENTER OF SAID MEMBER; MEANS TO SUPPLY AIR TO SAID ANNULR PASSAGE TO FLOW THROUGH THE CENTER OF SAID MEMBER, MEANS FORMING A PASSAGE FOR FUEL GAS EXTENDING THROUGH SAID STRUCTURE COAXIAL WITH SAID MEMBER, SAID MEANS FORMING SAID FUEL GAS PASSAGE BEING SPACED FROM SAID ANNULAR PASSAGE, SAID LAST MENTIONED MEANS INCLUDING MEANS TO DIRECT FUEL GAS AXIALLY AS A JET INTO THE CENTER OF SAID MEMBER, AND MEANS TO DIRECT HOT GASES AROUND THE EXTERIOR OF SAID BODY.
Claim 2
Dependent Claim
145 words
IN A BURNER, A HOLLOW CYLINDRICAL BODY, A CYLINDRICAL STRUCTURE IN AN EXTENDING ALMOST ALL THE WAY THROUGH SAID BODY AND SPACED THEREFROM TO FORM AN ANNULAR PASSAGE, A HOLLOW CYLINDRICAL MEMBER ATTACHED TO ONE END OF SAID BODY AND HAVING AN AXIALLY EXTENDING CENTRAL PASSAGEWAY THERETHROUGH, SAID STRUCTURE, BODY AND MEMBER BEING SO SHAPED THAT ONE END OF SAID ANNULAR PASSAGE COMMUNICATES WITH THE CENTER OF SAID MEMBER; MEANS TO SUPPLY AIR TO SAID ANNULR PASSAGE TO FLOW THROUGH THE CENTER OF SAID MEMBER, MEANS FORMING A PASSAGE FOR FUEL GAS EXTENDING THROUGH SAID STRUCTURE COAXIAL WITH SAID MEMBER, SAID MEANS FORMING SAID FUEL GAS PASSAGE BEING SPACED FROM SAID ANNULAR PASSAGE, SAID LAST MENTIONED MEANS INCLUDING MEANS TO DIRECT FUEL GAS AXIALLY AS A JET INTO THE CENTER OF SAID MEMBER, AND MEANS TO DIRECT HOT GASES AROUND THE EXTERIOR OF SAID BODY.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |