US3320997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion device with pre-combustion chamber
Assignee: Eberspaecher Climate Control Systems GmbH and Co KG
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Filing: 1965-11-17
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Granted: 1967-05-23
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Expires: 1985-11-17
Abstract
No abstract record available.
Inventors
- 👤 Kofink Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:41
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/44; F23D11/441; F23C; F23C2700/00; F23C2700/02; F23C2700/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A COMBUSTION DEVICE COMPRISING A TUBULAR CONDUIT FOR THE FLOW OF A COMBUSTION AIR STREAM THERETHROUGH AND DEFINING A PRECOMBUSTION CHAMBER, A CYLINDRICAL POROUS BODY FUEL VAPORIZER OF A CROSS-SECTION SMALLER THAN SAID CONDUIT DISPOSED ACROSS SAID CONDUIT WITH ITS AXIS AT AN ACUTE ANGLE TO THE FLOW AXIS OF THE AIR STREAM, MEANS FOR ADMITTING FUEL INTO THE POROUS BODY FOR PASSAGE THROUGH THE PORES OF SAID BODY AND FOR VAPORIZING AND MIXING WITH THE AIR STREAM, MEANS FOR DIRECTING A
Claim 2
Dependent Claim
82 words
A COMBUSTION DEVICE COMPRISING A TUBULAR CONDUIT FOR THE FLOW OF A COMBUSTION AIR STREAM THERETHROUGH AND DEFINING A PRECOMBUSTION CHAMBER, A CYLINDRICAL POROUS BODY FUEL VAPORIZER OF A CROSS-SECTION SMALLER THAN SAID CONDUIT DISPOSED ACROSS SAID CONDUIT WITH ITS AXIS AT AN ACUTE ANGLE TO THE FLOW AXIS OF THE AIR STREAM, MEANS FOR ADMITTING FUEL INTO THE POROUS BODY FOR PASSAGE THROUGH THE PORES OF SAID BODY AND FOR VAPORIZING AND MIXING WITH THE AIR STREAM, MEANS FOR DIRECTING A
References Cited (Backward Citations)
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US1903364A
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US2194081A
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US2332094A
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US2431456A
Cited
US2712352A
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US2966942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |