US3219418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Afterburner for inhibiting emission of smog from a combustion device
Assignee: JACK PEMBERTON
•
Filing: 1963-07-12
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Granted: 1965-11-23
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Expires: 1983-07-12
Abstract
No abstract record available.
Inventors
- 👤 Elmo O Whitmire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:37
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/26; F01N2240/00; F01N2240/20; F01N3/36
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
233 words
IN AN AFTERBURNER FOR INHIBITING EMISSION OF SMOG FROM A COMBUSTION DEVICE: (A) A HOOD MOUNTED OVER AN OUTLET OF A COMBUSTION DEVICE TO RECEIVE SMOKE AND OTHER UNDESIRABLE PRODUCTS OF COMBUSTION THEREFROM; (B) AN EXTERIOR FLUE-SHIELD OF TUBULAR OUTLINE SURROUNDING THE HOOD AND COACTING THEREWITH TO DEFINE A RESTRICTED PASSAGEWAY COMMUNICATING WITH THE COMBUSTION DEVICE OUTLET AND THROUUGH WHICH THE SMOKE AND PRODUCTS MUST PASS BEFORE ESCAPING TO THE ATMOSPHERE, IRRESPECTIVE OF THE SIZE OF THE COMBUSTION DEVICE OUTLET; (C) AT LEAST ONE BURNER ARRANGED TO PRODUCE FLAMES IN THE RESTRICTED PASSAGEWAY COMPLETELY OCCUPYING THE LATTER; (D) THE CAPACITY OF THE RESTRICTED PASSAGEWAY BEIENG SUFFICIENT TO ACCOMMODATE ALL SMOKE AND PRODUCTS BEING DISCHARGED FROM THE COMBUSTION DEVICE OUTLET, BUT AT THE SAME TIME THIS PASSAGEWAY BEING RESTRICTED TO THE EXTENT THAT THE FLAMES FROM THE BUURNER WILL PRECLUDE ESCAPEMENT OF THE SMOKE AND PRODUCTS FROM THE COMBUSTION DEVICE TO THE ATMOSPHERE; (E) SAID RESTRICTED PASSAGEWAY COMMUNICATING WITH THE COMBUSTION DEVICE OUTLET THROUGH AT LEAST ONE SLOT FORMED IN THE HOOD; (F) SAID RESTRICTED PASSAGEWAY EXTENDING CIRCUMFERENTIALLY AROUND AND BEING DISPOSED LATERALLY AND OUTWARDLY BEYOND THE COMBUSTION DEVICE OUTLET; (G) AND A BARRIER WALL EXTENDING ENTIRELY ACROSS THE INTERIOR OF THE HOOD AND ARRANGED TO DEFLECT ALL OF SAID SMOKE AND PRODUCTS OF COMBUSTION FROM THE COMBUSTION DEVICE OUTLET LATERALLY IN AN OUTWARD DIRECTION INTO THE RESTRICTED PASSAGEWAY FOR OUTFLOW INTO SAID FLAMES.
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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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |