US3259170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burner
Assignee: SKF Automotive Products Inc
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Filing: 1964-06-12
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Granted: 1966-07-05
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Expires: 1984-06-12
Abstract
No abstract record available.
Inventors
- 👤 Henry L Koehrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:19
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/02; F23D14/04; F23D14/46; F23D14/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A BURNER FOR GAS-BURNING APPLIANCES HAVING AN OUTLET, A GAS INLET, AND A VENTURI BETWEEN THE OUTLET AND THE INLET, A CYLINDRICAL CHAMBER BETWEEN SAID INLET AND SAID VENTURI, SAID CHAMBER HAVING A CIRCUMFERENTIAL PORT TO ADMIT AIR THERETO, AND MEANS TO REGULATE THE FLOW OF AIR THROUGH SAID PORT COMPRISING, AN INCOMPLETELY CYLINDRICAL SHUTTER WITHIN SAID CHAMBER AND HAVING A SLICING FIT THEREWITHIN, SAID SHUTTER HAVING AXIAL AND CIRCUMFERENTIAL DIMENSIONS LESS THAN THAT OF SAID CYLINDER BUT GREATER THAN THAT OF SAID PORT, AND PART OF SAID SHUTTER EXTENDING THROUGH SAID PORT TO LIMIT RELATIVE ROTATION BETWEEN SAID SHUTTER AND SAID CHAMBER ABOUT THE AXIS OF THE LATTER.
Claim 2
Dependent Claim
110 words
IN A BURNER FOR GAS-BURNING APPLIANCES HAVING AN OUTLET, A GAS INLET, AND A VENTURI BETWEEN THE OUTLET AND THE INLET, A CYLINDRICAL CHAMBER BETWEEN SAID INLET AND SAID VENTURI, SAID CHAMBER HAVING A CIRCUMFERENTIAL PORT TO ADMIT AIR THERETO, AND MEANS TO REGULATE THE FLOW OF AIR THROUGH SAID PORT COMPRISING, AN INCOMPLETELY CYLINDRICAL SHUTTER WITHIN SAID CHAMBER AND HAVING A SLICING FIT THEREWITHIN, SAID SHUTTER HAVING AXIAL AND CIRCUMFERENTIAL DIMENSIONS LESS THAN THAT OF SAID CYLINDER BUT GREATER THAN THAT OF SAID PORT, AND PART OF SAID SHUTTER EXTENDING THROUGH SAID PORT TO LIMIT RELATIVE ROTATION BETWEEN SAID SHUTTER AND SAID CHAMBER ABOUT THE AXIS OF THE LATTER.
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) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |